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Rozprawy doktorskie na temat „Flame behavior”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 25 lipca 2025

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1

Moore, Nancy Jennings. "Effects of Leading-Edge Flame Behavior on Flame Stabilization and Blowout." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-10012009-135737/.

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The goal of this work was to identify the mechanisms that effect stabilization of hydrocarbon jet flames. Methane, nitrogen, and co-flowing air were regulated and directed through a burner that created fully-developed fuel flow with concurrent air. The behavior of the reaction zone at the leading-edge was analyzed from digital images obtained from a camera optimally positioned to capture the movements of the entire flame front. Low Reynolds number flows allowed for the investigation of hysteretic behavior. The hysteresis regime refers to the situation where the jet flame has dual positions fav

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2

Li, Qian. "NUMERICAL STUDY OF FIRE BEHAVIOR BETWEEN TWO INCLINED PANELS." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1560241654377726.

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3

Howard, Randall E. "Acoustical behavior of a turbulent, ducted, premixed, hydrogen- flame burner." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/91121.

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The acoustic source structure, acoustic farfield, and duct terminating impedances fully describe the acoustics of a source within a duct. A main goal in the study of noise generated by turbulent combustion is to characterize the structure of the flame as an acoustic source. Data describing the farfield and duct terminating conditions allow for the testing of combustion noise models. The acoustic farfield of a premixed flame burner is documented for various power levels and air-to-fuel ratios. The terminating impedance of the burner exhaust is determined by a method using the transfer functio

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4

加藤, 敏宏, Toshihiro KATOH, 直樹林 та ін. "二次元非定常予混合火炎に関する素反応機構による数値解析 (予混合火炎構造を支配する物質量としての反応進行度とその勾配の妥当性)". 日本機械学会, 2005. http://hdl.handle.net/2237/9362.

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5

Adam, Brittany A. "INCORPORATING DYNAMIC FLAME BEHAVIOR INTO THE SCALING LAWS OF WILDLAND FIRE SPREAD." UKnowledge, 2015. http://uknowledge.uky.edu/me_etds/54.

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A challenge for fire researchers is obtaining data from those fires that are most dangerous and costly. While it is feasible to instrument test beds, test plots, and small prescribed burns for research, it is uncommon to successfully instrument an active wildland fire. With a focus on very specific facets of wildland fire, researchers have created many unique models utilizing matchsticks, cardboard, liquid fuel, excelsior, plywood, live fuels, dead fuels, and wood cribs of different packing densities. Such scale models, however, only serve as valid substitutes for the full-scale system when al

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6

Kim, Dong-Hyun. "A Study for Surface Fire Behavior and Flame Spread Model in Forest Fire." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120907.

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YAMASHITA, Hiroshi. "Numerical Study on NOx Production of Transitional Fuel Jet Diffusion Flame." The Japan Society of Mechanical Engineers, 2000. http://hdl.handle.net/2237/8999.

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8

YAMAMOTO, Kazuhiro, Naoki HAYASHI, Hiroshi YAMASHITA та ін. "非定常対向流予混合火炎の火炎構造に与える流入速度変動の影響に関する数値解析". 一般社団法人日本機械学会, 2008. http://hdl.handle.net/2237/19801.

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9

Lee, Yong-Joon. "Structure-property behavior of novel high performance thermoplastic and thermoset structural adhesives and composite matrix resins." Diss., This resource online, 1995. http://scholar.lib.vt.edu/theses/available/etd-06062008-162715/.

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10

林, 直樹, Naoki HAYASHI, 博史山下 та ін. "反応進行度とその勾配による非定常対向流予混合火炎の火炎構造の整理". 日本機械学会, 2006. http://hdl.handle.net/2237/9363.

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11

Bland, Kenneth Edward. "Behavior of Wood Exposed to Fire: A Review and Expert Judgement Procedure for Predicting Assembly Failure." Digital WPI, 2005. https://digitalcommons.wpi.edu/etd-theses/1160.

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This paper summarizes research on the structural perfomance of wood elements and assemblies exposed to fire and reviews methodologies available to predict performance. This reasecrh provides a wealth of information on topics such as how fast a flame spreads across the surface of wood, how much smoke is produced during combustion and at what rate does wood char and at what heat release rate.

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12

Prince, Dallan R. "Measurement and Modeling of Fire Behavior in Leaves and Sparse Shrubs." BYU ScholarsArchive, 2014. https://scholarsarchive.byu.edu/etd/5545.

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Wildland fuels and fire behavior have been the focus of numerous studies and models which provide operational support to firefighters. However, fuel and fire complexity in live shrubs has resulted in unexpected and sometimes aggressive fire behavior. The combustion of live fuels was studied and modeled, and the results were assimilated into a shrub-scale fire behavior model which assumes fire spread by flame-fuel overlap. Fire spread models have usually assumed that radiation heat transfer is responsible for driving fire spread, but that assumption is a topic of continuing debate, and appears

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13

Peraza, Ávila Jesús Enrique. "Experimental study of the diesel spray behavior during the jet-wall interaction at high pressure and high temperature conditions." Doctoral thesis, Universitat Politècnica de València, 2020. http://hdl.handle.net/10251/149389.

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[EN] The potential of diesel engines in terms of robustness, efficiency and energy density has made them widely used as power generators and propulsion systems. Specifically, fuel atomization, vaporization and air-fuel mixing, have a fundamental effect on the combustion process, and consequently, a direct impact on pollutant formation, fuel consumption and noise emission. Since the combustion chamber has a limited space respect to the spray penetration, wall impingement is considered to be a common event in direct injection diesel engines, having a relevant influence in the spray evolution and

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14

Lin, Qing. "Développement de systèmes retardateurs de flamme pour matériaux composites thermoplastiques à fibres continues." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0118.

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La demande actuelle du marché du transport en matériaux composites à matrice polymère est en augmentation importante afin de remplacer les pièces aujourd’hui fabriquées en alliages métalliques par des matériaux plus légers et performants. Actuellement couramment utilisés, les composites thermodurcissables présentent l’inconvénient de ne pas être recyclables. Aussi, un des objectifs du projet « Résines idéales » durant lequel cette thèse a été réalisée est de mettre au point de nouveaux composites à matrice thermoplastique, doués de propriétés équivalentes. Parmi celles-ci, le comportement au f

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15

Menon, Shakti Narayana. "Bifurcation problems in chaotically stirred reaction-diffusion systems." Thesis, The University of Sydney, 2008. http://hdl.handle.net/2123/3685.

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A detailed theoretical and numerical investigation of the behaviour of reactive systems under the influence of chaotic stirring is presented. These systems exhibit stationary solutions arising from the balance between chaotic advection and diffusion. Excessive stirring of such systems results in the termination of the reaction via a saddle-node bifurcation. The solution behaviour of these systems is analytically described using a recently developed nonperturbative, non-asymptotic variational method. This method involves fitting appropriate parameterised test functions to the solution, and also

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16

Menon, Shakti Narayana. "Bifurcation problems in chaotically stirred reaction-diffusion systems." University of Sydney, 2008. http://hdl.handle.net/2123/3685.

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Doctor of Philosophy<br>A detailed theoretical and numerical investigation of the behaviour of reactive systems under the influence of chaotic stirring is presented. These systems exhibit stationary solutions arising from the balance between chaotic advection and diffusion. Excessive stirring of such systems results in the termination of the reaction via a saddle-node bifurcation. The solution behaviour of these systems is analytically described using a recently developed nonperturbative, non-asymptotic variational method. This method involves fitting appropriate parameterised test functions t

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17

Ruggles, Adam. "Flame Behaviour in an Acoustically Forced Gas Turbine Combustor." Thesis, Cranfield University, 2009. http://hdl.handle.net/1826/3760.

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A swirl stabilised dump combustor capable of imposing flow perturbations creating combustion instabilities has been designed and commissioned. The capability of supplying different fuel mixtures (methane hydrogen blends) has been incorporated. Additional capability is the facility to preheat the combustion air prior to chamber entry and to be able to introduce dilution air into the chamber. The chamber itself is of fused silica quartz to allow non-intrusive optical diagnostics. High speed CH* Chemiluminescence has been performed to qualitative characterise the unstable heat release rate of pur

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18

Ricklund, Niklas. "Environmental occurrence and behaviour of the flame retardant decabromodiphenyl ethane." Doctoral thesis, Stockholms universitet, Institutionen för tillämpad miljövetenskap (ITM), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-34060.

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The environmental occurrence and behaviour of the brominated flame retardant (BFR) decabromodiphenyl ethane (dbdpe) has only been studied to a limited extent. It is structurally similar to decabromodiphenyl ether (decaBDE), which makes it conceivable that dbdpe may also become an environmental contaminant of concern. A method for environmental analysis and comparative assessments of dbdpe and decaBDE was developed. Both BFRs were studied in: a mass balance of the Henriksdal WWTP in Stockholm (Paper I); an international survey of sewage sludge (Paper II); sediment along a transect from Henriksd

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19

Gashi, Sara. "Investigation of flame front behaviour in turbulent premixed combustion systems." Thesis, University of Cambridge, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.614255.

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20

Baqué, Bénédicte. "Couplage aéro-thermo-mécanique pour la prédiction de la déformation d'une plaque soumise à une flamme." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2012. http://pastel.archives-ouvertes.fr/pastel-00718738.

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Cette thèse consiste à mettre en place un couplage externe aéro-thermo-mécanique, sur la base d'un schéma partitionné, entre les codes de recherche CEDRE (mécanique des fluides, volumes finis) et Z-set (modules indépendants pour la mécanique des structures et la thermique du solide, éléments finis). Les résultats numériques sont confrontés à ceux de l'expérience (une campagne de mesures a été menée dans le cadre de cette étude), dans le cas d'un problème complexe lié au domaine de l'aérospatial : l'interaction flamme-paroi. Ce phénomène est piloté par la thermique, à travers le flux de chaleur

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21

Anderton, Edwyn Christopher Morgan. "Relationships between polymer-additive molecular structure and intumescent flame retardant behaviour." Thesis, Sheffield Hallam University, 1990. http://shura.shu.ac.uk/19277/.

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This thesis describes studies of the relationship between the molecular structure of a range of organophosphorus-based polymer additives and their ability to confer intumescent flame retardant properties on the resulting polymers. The development of intumescent fire retardants is discussed along with the principles of flame retardancy in general. Much of the work centred around the chemistry of a key starting material, pentaerythritol phosphate (PEPA). This compound was found to be less reactive than expected, due to a combination of its neopentyl type structure and the electron withdrawing ef

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22

Gossiaux, Alexandre. "Comportement au feu de mousses polyuréthanes rigides : Approches systématiques." Electronic Thesis or Diss., Centrale Lille Institut, 2021. http://www.theses.fr/2021CLIL0021.

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Une prise de conscience commune des facteurs environnementaux et plus particulièrement du réchauffement climatique rend urgent un meilleur contrôle de la consommation d'énergie. Une solution consiste à réduire les pertes d'énergie dans les bâtiments en utilisant de nouveaux matériaux d'isolation thermique efficaces tels que les mousses polyuréthanes. Ces mousses sont des matériaux très performants et compétitifs au regard des autres solutions existantes. Cependant, elles sont extrêmement inflammables en raison de leur nature organique. Les chercheurs et industrielles ajoutent alors des molécul

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23

Lewis, Jonathan. "The behaviour of swirling flames under variable fuel composition." Thesis, Cardiff University, 2014. http://orca.cf.ac.uk/66162/.

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This thesis is concerned with the swirl stabilised combustion of gases with variable composition, primarily those derived from the gasification of carbonaceous material, and secondarily those that occur naturally, such as shale gas. During the course of this research the temporal composition of producer gas, derived from the gasification of biomass, was studied in order to ascertain the effect its variable fuel composition had on its combustion properties. Its variation was highly dependent on gasifier operation, and despite the stoichiometric air-to-fuel ratio and Wobbe Index of the fuel bein

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24

Andresen, Jens Arne. "Emission, fate and behaviour of phosphororganic flame retardants and plasticisers in the aquatic environment." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979245125.

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Viretto, Amandine. "Influence de la morphologie sur la dégradation thermique et le comportement au feu de formulations polymères complexes en vue d'applicationsen en câblerie." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20045.

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La câblerie est un secteur industriel gros consommateur de polymères. Dans ce domaine, les normes imposent cependant de limiter le risque incendie et donc d'ignifuger les matériaux polymères utilisés, sources importantes de combustibles. De nombreux travaux ont porté sur leur ignifugation par utilisation d'additifs retardateurs de flammes, mais peu d'entre eux ont étudié l'influence de la morphologie des mélanges polymères chargés sur la stabilité thermique et le comportement au feu. Cette thèse fait suite à un précédent projet qui avait démontré une influence significative de la morphologie s

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26

Park, Seul Hyun Choi Mun Young. "Investigation of sooting behavior and soot nanostructures of ethanol droplet flames in microgravity /." Philadelphia, Pa. : Drexel University, 2007. http://hdl.handle.net/1860/1801.

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Degeneve, Arthur. "Stabilization, structure and thermal behavior of oxy-flames with a variable swirl level." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPAST025.

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Ce travail porte sur la stabilisation, la structure et le comportement thermique d’oxy-flammes turbulentes opérées avec du méthane comme combustible. L’étude recouvre des flammes fonctionnant dans des conditions prémélangées et non prémélangées, avec et sans swirl, et avec un oxydant dont la concentration d'oxygène est variable. Plus de 3000 flammes sont étudiées sous une large gamme de conditions de fonctionnement grâce à une chambre de combustion polyvalente, et à des diagnostics laser et des outils de calcul haute-fidélité. L'objectif de cette thèse est de répondre à la question suivante. S

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Marteinson, Sarah Catherine. "Reproductive and behavioral effects of two brominated flame retardants in captive american kestrels (Falco sparverius)." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=96765.

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II Brominated flame retardants (BFRs) are persistent organic pollutants that have reached a global distribution in the environment. Many of the BFRs are lipophilic and bioaccumulative, and consequently several of them have been found in wildlife tissue with some of the highest levels recorded in several raptor species. The overall aim of this study was to determine the effects of exposure to environmentally relevant levels of the two most prominent BFRs, polybrominated diphenyl ethers (PBDEs: DE-71 mixture) or hexabromocyclododecane (HBCD) on the reproductive success, behaviour and physiolog

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29

Liu, Yan. "A study of the burning behaviours of flame retarded polyurethane foams and foam/fabric composites." Thesis, University of Salford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395704.

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Mangin, Rémy. "Influence du vieillissement sur le comportement au feu de formulations hétérophasées ignifugées." Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0216/document.

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Le comportement au feu de matériaux polymères peut changer plus ou moins fortement après vieillissement, mettant en péril les biens et les personnes en cas d’incendie. Ces changements dépendent du système considéré (nature du système retardateur de flamme, de la matrice polymère) et des conditions de vieillissement. Or jusqu’à aujourd’hui, les normes exigent l’évaluation de la réaction au feu d’un matériau juste après fabrication et rarement après un vieillissement représentatif des conditions réelles d’utilisation. L’évolution des caractéristiques des polymères ignifugés au cours du temps est

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31

Viberg, Henrik. "Neonatal Developmental Neurotoxicity of Brominated Flame Retardants, the Polybrominated Diphenyl Ethers (PBDEs)." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4576.

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Tibiletti, Lucie. "Nouvelles formulations de résines polyesters insaturés pour l’amélioration du comportement au feu." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20134.

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Les polyesters insaturés sont des résines thermodurcissables particulièrement appréciées pour leur facilité de mise en œuvre et leur coût modéré. Cependant, comme tous les polymères organiques ils ont une réaction au feu médiocre, ce qui est critique dans un certains nombres de d'applications. L'objectif de cette thèse était d'élaborer de nouvelles formulations de résines ayant un comportement au feu amélioré. La première stratégie développée a été le greffage de monomères phosponés dans la matrice polyester. Des monomères méthacryliques et styrénique ont été synthétisés et utilisés pour rempl

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33

Wilson-Evered, Elisabeth 1956. "The leadership and workgroup requirements that organizations need to ignite and fan the flames of innovation." Monash University, Dept. of Management, 2002. http://arrow.monash.edu.au/hdl/1959.1/7899.

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Schuhler, Eliot. "Dégradation des matériaux composites sous l'effet d'une flamme : application à la réaction aux feux des composites utilisés pour les transports et l'énergie Behaviour of aeronautical polymer composite to flame: a comparative study of thermoset- and thermoplastic-based laminate." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMIR27.

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L’utilisation des matériaux composites à matrice polymère dans l’industrie aéronautique offre de nombreux avantages en termes de gain de masse et de résistance à la fatigue ou à la corrosion. Cependant l’utilisation de nouveaux matériaux tels que les composites à matrice thermodurcissable nécessite des efforts conséquents de développement, de test et de vérification. En particulier dans le domaine de la résistance aux incendies. Ce travail porte sur la caractérisation expérimentale de la résistance au feu pour différents types de matériaux composites au moyen d’un brûleur. La première partie d

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35

Costa, Maria João Ferreira Rodrigues. "Effects of hydropeaking and refuge configurations on the behaviour of cyprinids in experimental flume conditions." Doctoral thesis, ISA/UL, 2019. http://hdl.handle.net/10400.5/18333.

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Doutoramento em Restauro e Gestão Fluviais (FLUVIO) - Instituto Superior de Agronomia / Faculdade de Arquitetura / Instituto Superior Técnico<br>Flow regime regulates the ecological integrity of river ecosystems, shaping the structure and function of fish communities. The discharge fluctuations in hydropower plants in response to peak electricity demand (i.e. hydropeaking) result in rapid flow changes in tailwaters. The continued hydropower operations produced morphological, hydraulic and water quality alterations, affecting downstream fish. Fish responses to hydropeaking range from organism t

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36

Mangin, Rémy. "Influence du vieillissement sur le comportement au feu de formulations hétérophasées ignifugées." Electronic Thesis or Diss., Université de Lorraine, 2018. http://www.theses.fr/2018LORR0216.

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Le comportement au feu de matériaux polymères peut changer plus ou moins fortement après vieillissement, mettant en péril les biens et les personnes en cas d’incendie. Ces changements dépendent du système considéré (nature du système retardateur de flamme, de la matrice polymère) et des conditions de vieillissement. Or jusqu’à aujourd’hui, les normes exigent l’évaluation de la réaction au feu d’un matériau juste après fabrication et rarement après un vieillissement représentatif des conditions réelles d’utilisation. L’évolution des caractéristiques des polymères ignifugés au cours du temps est

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37

Lamparter, Gabriele Johanna. "Modeling fine sediment behavior in gravel-bed rivers." Thesis, University of Exeter, 2014. http://hdl.handle.net/10871/18441.

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Fine-grained sediment accumulation in the interstices of gravel beds is a key factor in degrading riverine habitats. However, interstitial deposits are highly dynamic and are not sufficiently understood. This work enhances the understanding of interstitial fine sediment deposition by investigating interstitial storage and ingress, flow, suspended sediment and gravel bed character. Furthermore, this work introduces a numerical suspended sediment deposition model with the power to predict patterns of interstitial ingress. The investigation of interstitial deposition were carried out on two level

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38

Carvel, Richard Oswald. "Fire size in tunnels." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/365.

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In recent years, a number of high profile accidental fires have occurred in several road and rail tunnels throughout the world. Many of these fires grew rapidly to catastrophic size and claimed many lives. The processes involved in the rapid growth and extremely severe of these fires are not adequately understood as yet. The introduction to this thesis reviews a number of these accidental fires and describes much of the previous experimental research which has brought about the current understanding of tunnel fire behaviour. A detailed review of the relevant parts of elementary fire dynamics i

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Layden, Aisling. "Global study of lake surface water temperature (LSWT) behaviour and the tuning of a 1-dimensional model to determine the LSWTs of large lakes worldwide." Thesis, University of Edinburgh, 2014. http://hdl.handle.net/1842/9928.

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Lake surface water temperatures (LSWTs) of 246 globally distributed large lakes were derived from Along-Track Scanning Radiometers (ATSR) for the period 1991 to 2011. These LSWTs, derived in a systematic manner, presents an ideal opportunity to study LSWT behaviour on a global scale. In this thesis, the annual cycles of lake-mean LSWTs derived from these data quantify the responses of large lakes’ surface temperatures to the annual cycle of forcing by solar radiation and the ambient air temperature. Minimum monthly net surface solar irradiance (netSSI) strongly influences minimum LSWTs of non-

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40

Kervran, Maël. "Vieillissement de mélanges de polymères ignifugés." Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0058.

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Les matériaux polymères font partie intégrante de notre quotidien grâce à leur large gamme de propriétés et leur faible coût. Les quantités produites ne cessent d'augmenter et également l'impact environnemental de ces matériaux. Privilégier les biopolymères permet de limiter cet impact environnemental mais pour cela certaines de leurs propriétés doivent être améliorées. C'est notamment le cas des propriétés au feu qui restent un frein important à leur développement industriel. Le PLA qui est le biopolymère le plus utilisé et le PHB qui est un candidat intéressant pour de nombreuses application

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Sjögren, Torsten. "Influences of the Graphite Phase on Elastic and Plastic Deformation Behaviour of Cast Irons." Doctoral thesis, Linköpings universitet, Konstruktionsmaterial, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-8776.

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The amount and morphology of the graphite phase largely controls the resulting properties of cast iron. For instance, in flake graphite cast irons the mechanical properties are low while the thermal conductivity is high. This is in contrast with spheroidal graphite cast irons where the mechanical properties are high and the thermal conductivity is low. These differences are due to the different graphite morphologies and must be accounted for in the design work and material selection of cast iron components. In this work the influence of the graphite phase on the elastic and plastic deformation

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Parkes, Anthony Richard. "The impact of size and location of pool fires on compartment fire behaviour." Thesis, University of Canterbury. Civil and Natural Resources Engineering, 2009. http://hdl.handle.net/10092/3444.

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An understanding of compartment fire behaviour is important for fire protection engineers. For design purposes, whether to use a prescriptive code or performance based design, life safety and property protection issues are required to be assessed. The use of design fires in computer modelling is the general method to determine fire safety. However these computer models are generally limited to the input of one design fire, with consideration of the complex interaction between fuel packages and the compartment environment being simplified. Of particular interest is the Heat Release Rate, HRR, a

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Pfudl, Václav. "Zobrazování scény s velkým počtem chodců v reálném čase." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2015. http://www.nusl.cz/ntk/nusl-264968.

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The aim of this thesis was to implement a software that would be able to render, simulate and record a scene with walking pedestrians in real-time, with emphasis on rendering level of realism. The output of the application could serve as an input test data for people counting systems or similar systems for video recognition. The problem was divided into three major subproblems: character animation, artificial intelligence for character movement and advanced rendering techniques. The character animation problem is solved by the skeletal animation of the model. To achieve the characters moving i

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Chen, Jia-Kai, and 陳嘉凱. "Flame ignition/quenching behavior in tiny tube." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/56073584764068975940.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>102<br>A new model to discuss the behavior of flame repetitive ignition/quenching spread in a tiny tube is established in this study. This new model mainly ignores the velocities perpendicular to the flow direction, and therefore, each streamline meets the conservation of mass flow rate with the Poiseullie flow distribution at the entrance. In other words, as the gas temperatures increase, the gas expand and the velocities increase only in the channel direction. In this study, we compare the new model with the CDM(Constant Density Model) and analyze the differen

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Lin, Yi-chen, and 林義晨. "The behavior of flame propagation in diverging microchannels." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/u4794d.

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碩士<br>國立中山大學<br>機械與機電工程學系研究所<br>103<br>In this study, the complete Navier-Stokes equations are used in the mathematical formulation and the flame combustion is modeled by a simplified single-step reaction for methane-air mixture to investigate the different parameters such as wall-temperature, inlet velocity, diverging angle, and distribution of flame behaviors. When wall-temperature is at 600K, the steady tulip-shaped flame exists in the low-velocity region, the oscillating flame in the mid-velocity region, and the slant-shaped flame, with length increasing with velocity, in the high-veloci

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(6613562), Aaron M. Blacker. "Characterization of Lifted Flame Behavior in a Multi-Element Rocket Combustor." Thesis, 2019.

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<p> Lifted non-premixed turbulent jet flames in the Transverse Instability Combustor (TIC) have been analyzed using qualitative and quantitative methods. Lifted flames in the TIC have been observed to stabilize about zero to five injector exit diameters downstream of the dump plane into the chamber and exhibit pulsating, unsteady burning. Anchored flames immediately begin reacting in the injector recess and burn evenly in a uniform jet from the injector exit through the entire optically accessible region. Statistically significant, repeatable behavior lifted flames are observed. It

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Hsu, Shao-Kuei, and 許紹揆. "The study on toughness and flame retard behavior for Epoxy/Bamboo Composites." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/45361021966105738454.

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碩士<br>國立臺灣科技大學<br>材料科學與工程系<br>101<br>In this study, we focus the research on the mechanical properties of wood plastic composite (WPC) and miscible of epoxy resin and bamboo flour blending. In addition, the introduction of polyurethane toughens the WPC to improve the impact resistance, and addition of halogen-free flame retardant results in fire resistant. First of all, the DSC (Differential Scanning Calorimetry) and rheometer were utilized for analyzing the curing rate and process conditions.Moreover, we empolyed three point bening test,izod test, falling ball test,creep test,dynamics propert

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Ming-TsungTsai and 蔡明璁. "Observation on the flame behavior for methane hydrate synthesized by ice seed method." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/53388255754210484608.

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碩士<br>國立成功大學<br>航空太空工程學系<br>102<br>The purpose of this study is to develop a standard procedure for artificially synthesize the methane hydrate with consistent and uniform properties for further observation and experiments of the combustion phenomena of methane hydrate. The synthesis procedure is based on ice-seed method, and adding the ethanol as the catalyst to shorten the processing time, if necessary. By packing the ice-seed into different porosity, the synthesized hydrates will also have different porosity. With the larger porosity of the ice-seed, the porosity of the synthesized hydrate

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黃全義. "The Study Of Miscibility And Flame Behavior Of UPRs/Modar Blends, Synthesis Of Modified Unsaturated Polyester Used DCPD." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/44456558758431946846.

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碩士<br>國立臺灣科技大學<br>纖維及高分子工程技術研究所<br>85<br>This study is interested in using Differential Scanning Calorimetry (DSC) to examine and simulate the behavior of cure reaction, to calculate and estimate the cure reaction rate, cure temperature, extent of cure conversion and the variance of glass transition temperature (Tg) with various degree of cure achieved of UPRs/Modar blends that expect to find the best mold process parameter. In order to understand miscibility of UPRs/Modar blends after cured. We used Dynamic Mechanical Analysis (DMA) to approached the Network Aggregate structure and used Scann

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KIVINDU, REUBEN MWANZA, and REUBEN MWANZA KIVINDU. "Flame Behavior and Thermal Structure of Combusting Non-premixed Plane Jets with and without Self-excited Transverse Oscillations." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/yn4gb2.

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博士<br>國立臺灣科技大學<br>機械工程系<br>106<br>The flame behavior and thermal structure of combusting non-premixed plane jets with and without self-excited transverse oscillations were investigated experimentally. The transversely-oscillating plane jet was generated by a specially designed fluidic oscillator. The flame behavior was studied using the instantaneous- and long-exposure photography techniques. Temperature and combustion-product concentration distributions were measured using a fine-wire type-R thermocouple and a gas analyzer, respectively. The results showed that the combusting transversely-osc

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