Dissertations / Theses on the topic 'Bluff body stabilized flame'
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Husain, Sajjad A. "Analysis of blowoff scaling of bluff body stabilized flames." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22565.
Full textMonfort, Jeffrey Ross. "Experimental Investigation into Thermo-Acoustic Instability in Pre-Mixed, Pre-Vaporized Bluff-Body Stabilized Flames." University of Dayton / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1438202236.
Full textHuelskamp, Bethany C. "The Development of a Correlation to Predict the Lean Blowout of Bluff Body Stabilized Flames with a Focus on Relevant Timescales and Fuel Characteristics." University of Dayton / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1367192147.
Full textShanbhogue, Santosh Janardhan. "Dynamics of perturbed exothermic bluff-body flow-fields." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24823.
Full textCommittee Chair: Lieuwen, Tim; Committee Member: Gaeta, Rick; Committee Member: Menon, Suresh; Committee Member: Seitzman, Jerry; Committee Member: Zinn, Ben.
Plaks, Dmitriy Vital. "Dynamics of longitudinally forced bluff body flames with varying dilatation ratios." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31767.
Full textCommittee Chair: Tim Lieuwen; Committee Member: Jeff Jagoda; Committee Member: Suresh Menon. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Emerson, Benjamin L. "Dynamical characteristics of reacting bluff body wakes." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/49073.
Full textNair, Suraj. "Acoustic Characterization of Flame Blowout Phenomenon." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10413.
Full textCross, Caleb Nathaniel. "Combustion heat release effects on asymmetric vortex shedding from bluff bodies." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42772.
Full textNambully, Suresh Kumar. "A Filtered-Laminar-Flame PDF subgrid scale closure for LES of Premixed Turbulent Flames : Application to a Stratified Bluff-body burner with Differential Diffusion." Phd thesis, INSA de Rouen, 2013. http://tel.archives-ouvertes.fr/tel-00845904.
Full textNeveu, Fabrice. "Mesures simultanées de la température et de la vitesse dans une flamme turbulente non prémélangée méthane-air, stabilisée par un bruleur de type Bluff-Body." Rouen, 1994. http://www.theses.fr/1994ROUES079.
Full textAyache, Simon Victor. "Simulations of turbulent swirl combustors." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/243609.
Full textNguyêñ, Huũ Tuyên. "Etude expérimentale de l'influence de la géométrie de stabilisateur sur le développement d'une flamme non prémélangée." Ecully, Ecole centrale de Lyon, 1999. http://bibli.ec-lyon.fr/exl-doc/TH_T1788_htnguyen.pdf.
Full textThe objective of this work was to point out the influence of the aerodynamic behind a bluff-body on the mechanisms of stabilisation of a non premixed flame. This aerodynamic behaviour is controlled not only by the dynamics of the flows but also, and particularly, by the geometry of the stabiliser. This analysis has been developed on a non-confined experimental set-up consisting of two separated and concentric flows (fuel and air), and for two stabilisers, disk and tulip shape burners. Direct visualisations were performed and were completed with velocity field measurements for cold and reacting flows by means of a two-component laser Doppler Anemometer. Temperature fields were also obtained by using a thermocouple. The characterisation of the recirculation zone allowed to bring to light several interesting phenomena: (i) The disk burner induces an important deviation of the annular flow and creates a larger, wider and more intense recirculation zone than the one observed with the tulip burner, for whiçh the effect of the boundary-layer development is predominant, (ii) The competition between the central jet and the recirculating flow, in terms of momentum flux, allows to differentiate the "dominant jet regime" from the "dominant flow regime", (iii) For the reacting flow, the decrease of the density in the zone surrounding the central jet facilitates its penetration, (iv) The effect of the burner shape for the reacting flow can be evaluated in a similar way as for the cold flow: the aerodynamic of the recirculating flow due to the disk enhances stronger perturbations than those generated by the tulip. The analysis of the development of the flame and of its structure has emphasised three main stabilisation regimes (development, ring flame, recirculating flame), two transition regimes and a domain of extinction. To complete this analysis, a study of the "ring flame" regime has been developed. It pointed out that the ring is a triple flame formed at the interface of two flows: a premixed fuel-air-combustion products flow and an air flow
YANG, YONG-QUAN, and 楊永全. "An experimental study on flame structure and flame stability of bluff-body stabilized flame." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/48598341091722015695.
Full textLai, Y. H., and 賴曜宏. "Modeling of a Bluff-body Stabilized Flame and the Prediction of Flame Stability." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/94190152609597957982.
Full text國立臺灣大學
機械工程研究所
84
This study is an analysis of the characteristics of flow field and combustion in a bluff-body burner. The nature of the isothermal field is used to predict the stability of flame. FLOW3D is developed by AEA Technology company and which can be used to predict the characteristics of flow field and the structure of flame. The k-ε turbulence model and EBU-Arrhenius Combustion Model with Finite-Rate Reaction were used in the program. The flow fields are investigated by changing the fuel-jet velocity and air-jet velocity. the result include the combusting and isothermal fields, the interaction of combustion and flow field and the correlation of velocity, temperature and mixture fields. Finally, the isothermal velocity and mixture composition fields were used to predict the flame stability and have a satisfactory result.
Sun, Sung-wei, and 孫頌偉. "An Experimental and Computational Study on Flame Structure and Flame Stability of Bluff-body Stabilized Flame." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/11438068661083806936.
Full textJalilalghadr, Farzin. "Direct numerical simulation of bluff-body stabilized flames." 2007. http://proquest.umi.com/pqdweb?did=1320964311&sid=8&Fmt=2&clientId=39334&RQT=309&VName=PQD.
Full textTitle from PDF title page (viewed on Nov. 13, 2007) Available through UMI ProQuest Digital Dissertations. Thesis adviser: Madnia, Cyrus K., Taulbee, Dale B. Includes bibliographical references.
Kim, Yu Jeong. "Computational Studies of Stabilization and Blow-off Mechanisms in Bluff-body Stabilized Lean Premixed Flames." Diss., 2021. http://hdl.handle.net/10754/669818.
Full textChang, Chia Chi, and 張家齊. "Nonpremixed Flame Structure of Double Concentric Jets Behind a Bluff-body Burner." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/47783246468482621088.
Full textPan, Kuo Long, and 潘國隆. "A Study of Wake Flame behind the Bluff-body with Central Jet." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/04744840978026329009.
Full text蔡國隆. "The Wake Flow Structure and Flame Stabilization Characteristics of the Bluff-body Flameholder." Thesis, 1992. http://ndltd.ncl.edu.tw/handle/01396425483605456969.
Full text施志龍. "Design and Analysis of Cold Flow and Flame Behaviors behind Bluff-body Cones." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/56400641120166262341.
Full textKang, Yu-Ping, and 康有評. "Scale Effect on Nonpremixed Turbulent Flame Structure of Bluff-body Burners with Concentric Jets." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/19897114079517151620.
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