Littérature scientifique sur le sujet « Coaxial Injectors »
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Articles de revues sur le sujet "Coaxial Injectors"
Xu, Jiabao, Ping Jin, Ruizhi Li, Jue Wang et Guobiao Cai. « Numerical Study on Combustion and Atomization Characteristics of Coaxial Injectors for LOX/Methane Engine ». International Journal of Aerospace Engineering 2021 (22 mai 2021) : 1–16. http://dx.doi.org/10.1155/2021/6670813.
Texte intégralWoo, Seongphil, Jungho Lee, Yeoungmin Han et Youngbin Yoon. « Experimental Study of the Combustion Efficiency in Multi-Element Gas-Centered Swirl Coaxial Injectors ». Energies 13, no 22 (19 novembre 2020) : 6055. http://dx.doi.org/10.3390/en13226055.
Texte intégralKim, Do-Hun, Jeung-Hwan Shin, In-Chul Lee et Ja-Ye Koo. « Atomizing Characteristics of Coaxial Porous Injectors ». Journal of ILASS-Korea 17, no 1 (30 mars 2012) : 35–44. http://dx.doi.org/10.15435/jilasskr.2012.17.1.035.
Texte intégralAnand, Rahul, PR Ajayalal, Vikash Kumar, A. Salih et K. Nandakumar. « Spray and atomization characteristics of gas-centered swirl coaxial injectors ». International Journal of Spray and Combustion Dynamics 9, no 2 (5 août 2016) : 127–40. http://dx.doi.org/10.1177/1756827716660225.
Texte intégralLee, Jungho, Ingyu Lee, Seongphil Woo, Yeoungmin Han et Youngbin Yoon. « Experimental Study of Spray and Combustion Characteristics in Gas-Centered Swirl Coaxial Injectors : Influence of Recess Ratio and Gas Swirl ». Aerospace 11, no 3 (8 mars 2024) : 209. http://dx.doi.org/10.3390/aerospace11030209.
Texte intégralSivakumar, D., et B. N. Raghunandan. « Jet Interaction in Liquid-Liquid Coaxial Injectors ». Journal of Fluids Engineering 118, no 2 (1 juin 1996) : 329–34. http://dx.doi.org/10.1115/1.2817381.
Texte intégralWoo, Seongphil, Jungho Lee, Ingyu Lee, Seunghan Kim, Yeoungmin Han et Youngbin Yoon. « Analyzing Combustion Efficiency According to Spray Characteristics of Gas-Centered Swirl-Coaxial Injector ». Aerospace 10, no 3 (10 mars 2023) : 274. http://dx.doi.org/10.3390/aerospace10030274.
Texte intégralAhn, Kyubok, Seonghyeon Seo et Hwan-Seok Choi. « Fuel-Rich Combustion Characteristics of Biswirl Coaxial Injectors ». Journal of Propulsion and Power 27, no 4 (juillet 2011) : 864–72. http://dx.doi.org/10.2514/1.b34121.
Texte intégralSo, Younseok, Yeoungmin Han et Sejin Kwon. « Combustion Characteristics of Multi-Element Swirl Coaxial Jet Injectors under Varying Momentum Ratios ». Energies 14, no 13 (5 juillet 2021) : 4064. http://dx.doi.org/10.3390/en14134064.
Texte intégralWataru, Miyagi, Miki Takahiro, Matsuoka Tsuneyoshi et Noda Susumu. « 1112 CHARACTERISTICS OF H2/AIR ANNULAR JET FLAMES USING MULTIPLE SHEAR COAXIAL INJECTORS ». Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2013.4 (2013) : _1112–1_—_1112–5_. http://dx.doi.org/10.1299/jsmeicjwsf.2013.4._1112-1_.
Texte intégralThèses sur le sujet "Coaxial Injectors"
Zapata, Usandivaras Jose. « Surrogate models based on large eddy simulations and deep learning for coaxial rocket engine injector design ». Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0024.
Texte intégralThe design of rocket propulsion systems is under growing pressure of reducing development costs. The use of CFD codes for the simulation of rocket engine combustion processes can provide an economical alternative to costly experiments which have traditionally been at the core of liquid rocket engines (LREs) development. Nonetheless, a holistic approach for preliminary design analysis and optimization is not yet practical, as the exploration of the entire engine design space via high-fidelity numerical simulations is intractable. Appropriate surrogate models may circumvent this dilemma through fast restitution times, without significant accuracy loss. The liquid rocket engine injector is a key subsystem within the LRE, whose design directly impacts flame development, combustion efficiency, and thermal loads. The multiscale nature of turbulent, non-premixed combustion, makes the modeling of injection, particularly complex. In this work, we proceed to evaluate data driven strategies for obtaining surrogate models of LRE shear coaxial injectors. A specific emphasis is taken on supervised, deep learning (DL) techniques for regression tasks. The base injector configuration is inspired on an existing experimental rocket combustor from TUM, operating with a GOx/GCH 4 mixture. We begin by conducting a proof-of-concept (PoC), by offline sampling a database of ∼3600 Reynolds Averaged Navier Stokes (RANS), 2D axisymmetric simulations of single element coaxial injectors spanning a 9 dimensional parameter space comprising geometry and combustion regime. Subsequent models of scalar quantities of interest (QoIs),1D wall heat flux profile, and 2D average temperature field are trained and validated. The models use Fully Connected Neural Networks and an adapted U-Net for the 2D case. The results perform well against other established surrogate modeling methods over the test dataset. The RANS approach has evident shortcomings when dealing with turbulent combustion applications. Instead, Large Eddy Simulations (LES), are in principle, better suited to model turbulent combustion, while furnishing information about dynamical flow features. We proceed to replicate the (PoC) efforts, albeit on a database of ∼100 LES of shear coaxial injectors spanning a 3D design space, at a much larger cost per sample than RANS. A dedicated LES data generation pipeline is put in place. Due to the cost, the LES are low-fidelity (LF) in view of the modeling simplifications, i.e. coarse meshes, global chemistry, etc. CNNs and U-Nets are used to obtain surrogate models of scalar QoIs and 2D stationary fields with satisfactory performance over the LF prediction task. To improve the overall fidelity of the surrogate, a multi-fidelity (MF) approach is considered by leveraging inductive transfer learning over our U-Nets. The decoding layers are retrained and validated over a smaller pool of ∼10 of high-fidelity (HF) samples, i.e. finer resolution. The MF surrogate performs well in the HF prediction task over the test samples, with the desired flame topology, at a lower computational cost of the offline sampling stage. The dynamic data of LES, motivates the development of reduced order models (ROMs) for the spatio-temporal prediction of the injector flame. We develop emulators of a LRE injector flame by means of convolutional autoencoders (CNN-AE) and multi-layer perceptron (MLP) for propagating in time the latent vectors. The reconstructed spectral content of the signal outperforms that of a standard POD with equal latent space dimension, demonstrating the superior compression capability of the CNN-AE. However, manifold regularity concerns are raised when propagating the emulator beyond the training horizon. Finally, this work evidences the challenges and opportunities of the use of DL for the prediction of stationary and dynamical features of LES data for a complex reactive flow configuration of a LRE coaxial injector
Gautam, Vivek. « Flow and atomization characteristics of cryogenic fluid from a coaxial rocket injector ». College Park, Md. : University of Maryland, 2007. http://hdl.handle.net/1903/7719.
Texte intégralThesis research directed by: Dept. of Mechanical Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Cessou, Armelle. « Stabilisation de la combustion diphasique turbulente au-dessus d'un injecteur coaxial méthanol/air ». Rouen, 1994. http://www.theses.fr/1994ROUES039.
Texte intégralBeduneau, Jean-Luc. « Caractérisation expérimentale des flammes non-prémélangées H₂/O₂ : application aux cas des injecteurs coaxiaux de moteurs fusées ». Rouen, INSA, 2001. http://www.theses.fr/2001ISAM0005.
Texte intégralBOUKERMOUCHE, AHMED. « Mise au point et developpementde mesures de la granulometrie et de la concentration de la phase liquide dans un jet diphasique engendre par des injecteurs coaxiaux ». Université Louis Pasteur (Strasbourg) (1971-2008), 1989. http://www.theses.fr/1989STR13080.
Texte intégralJerryLin et 林建國. « The Observation of The Spray from Coaxial Injectors ». Thesis, 2011. http://ndltd.ncl.edu.tw/handle/67987526551944470648.
Texte intégralWhite, Clayton Andrew. « Modeling of circulation zone and shear layers in coaxial injectors ». 2003. http://etd.utk.edu/2003/WhiteClayton.pdf.
Texte intégralTitle from title page screen (viewed Mar. 24, 2004). Thesis advisor: Charles Merkle. Document formatted into pages (x, 84 p. : ill. (some col.)). Vita. Includes bibliographical references (p. 38-40).
Ming-LunTsai et 蔡銘倫. « The Effects of Liquid Physical Property on the Atomization of Coaxial Injectors ». Thesis, 2013. http://ndltd.ncl.edu.tw/handle/39341541021971834975.
Texte intégral國立成功大學
航空太空工程學系碩博士班
101
Coaxial injector is mainly used in the mixing and combustion between liquid oxidizer and gaseous fuel. This research focuses on the effects of viscosity and surface tension of the liquid on the spray formation from a self-designed coaxial injector. The test solutions include pure water, 50wt% glycerin in water, and ethanol 15vol% ethanol in water. The spray angle, drop size distribution, core SMD (SMD0.35), and the jet surface instability waveform of the liquid sprays are analyzed by Planar Laser Induced Fluorescence (PLIF) technique, Malvern droplet analyzer, and high-speed photography, respectively. The results show that an earlier appearance of instable wave formation on jet surface and a smaller SMD distribution of the downstream spray are observed by decreasing the surface tension of the liquid jet, however, the spray angle is shown to be insensitive to surface tension variation. By increasing the liquid viscosity, the liquid jet is more stable and less surface wave formation was observed. The jet breaks up in membrane-type into a spray. The spray has a smaller core SMD and a more even spatial distribution of the droplet size.
Shao-JuiTang et 唐紹瑞. « The Study of the Breakup and Atomization of Liquid Jet from Asymmetric Coaxial Injectors ». Thesis, 2015. http://ndltd.ncl.edu.tw/handle/63856127458035990245.
Texte intégral國立成功大學
航空太空工程學系
103
Coaxial injector is mainly used in liquid rocket propulsion system design. This injector atomizes the liquid oxidizer by the gasified fuel and lets the propellant mix with each other. In this research, to simplify the structure of injector plate, all gas channels are integrated into rings with liquid injector within. In order to study the spray phenomena of this ring channel injector, asymmetric coaxial injector models are used to simulate its behavior. The models are designed to be single and triplet liquid injections within a rectangular gas flow channel. All injector models have the same gas-to-liquid-flow area ratio but different aspect ratios of the rectangular channels. Three means were adopted in this research to study the phenomena of spray. First, the high speed shadowgraph is utilized to observe the breakup of liquid column. Second, planar laser induced fluorescence (PLIF) technique is used to determine the 2-D mass probability distributions of the spray and the spray angle, mass distribution area, and patternaton index (P.I) are evaluated by it. Third, Malvern droplet analyzer is used to measure the droplet size distribution as well as the core SMD (SMD0.15) of the spray. The results show that the spray behavior of the conventional axisymmetric coaxial injector is better than the asymmetric ones. However, the interaction between sprays in the triplet design shows improved liquid atomization and closer distance between liquid sprays causes stronger interaction thus to a better spray behavior, even better than the axisymmetric one.
NareshKumar et 許庫瑪. « Numerical analysis on combustion characterization of gas centered swirl coaxial injector ». Thesis, 2018. http://ndltd.ncl.edu.tw/handle/s4954g.
Texte intégralLivres sur le sujet "Coaxial Injectors"
Center, Lewis Research, dir. LOX/hydrogen coaxial injector atomization test program. [Cleveland, Ohio] : National Aeronautics and Space Administration, Lewis Research Center, 1990.
Trouver le texte intégralGomi, Hiromi. Pneumatic atomisation with coaxial injectors : Measurements of drop sizes by the diffraction method and liquid phase fraction by the attenuation method of light. Chofu, Tokyo : National Aerospace Laboratory, 1985.
Trouver le texte intégralD, Klem Mark, et United States. National Aeronautics and Space Administration., dir. Coaxial injector spray characterization using water/air as stimulants. [Washington, DC] : National Aeronautics and Space Administration, 1991.
Trouver le texte intégralD, Smith Timothy, et NASA Glenn Research Center, dir. Experimental evaluation of a subscale gaseous hydrogen/gaseous oxygen coaxial rocket injector. Cleveland, Ohio : National Aeronautics and Space Administration, Glenn Research Center, 2002.
Trouver le texte intégralShear coaxial injector atomization phenomena for combusting and non-combusting conditions. University Park, PA : Propulsion Engineering Research Center and Dept. of Mechanical Engineering, Pennyslvania State University, 1992.
Trouver le texte intégralEXPERIMENTAL EVALUATION OF SUBSCALE GASEOUS HYDROGEN/GASEOUS OXYGEN COAXIAL ROCKET INJECTOR... NASA/TM--2002-211982... NATIONAL AERONAUTICS. [S.l : s.n., 2003.
Trouver le texte intégralChapitres de livres sur le sujet "Coaxial Injectors"
Armbruster, Wolfgang, Justin S. Hardi et Michael Oschwald. « Experimental Investigation of Injection-Coupled High-Frequency Combustion Instabilities ». Dans Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 249–62. Cham : Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_16.
Texte intégralKamalakannan Kannaiyan et Aravind Vaidyanathan. « Design and Characterization of Liquid Centered Swirl-Coaxial Injector ». Dans Fluid Mechanics and Fluid Power – Contemporary Research, 23–32. New Delhi : Springer India, 2016. http://dx.doi.org/10.1007/978-81-322-2743-4_3.
Texte intégralArun, K. R. « Study of Gas-Centered Coaxial Injector Using Jet in a Cross-Flow Mechanism ». Dans Lecture Notes in Mechanical Engineering, 367–76. Singapore : Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6619-6_40.
Texte intégralLempke, Markus, Peter Gerlinger, Michael Rachner et Manfred Aigner. « Euler-Lagrange Simulation of a LOX/H2 Model Combustor with Single Shear Coaxial Injector ». Dans High Performance Computing in Science and Engineering '10, 203–15. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-15748-6_16.
Texte intégral« Atomization in Coaxial-Jet Injectors ». Dans Liquid Rocket Thrust Chambers, 105–40. Reston ,VA : American Institute of Aeronautics and Astronautics, 2004. http://dx.doi.org/10.2514/5.9781600866760.0105.0140.
Texte intégralAn, H., et W. Nie. « Numerical Study of acoustic characteristics of gas-liquid coaxial injectors ». Dans Advances in Power and Energy Engineering, 205–10. CRC Press, 2016. http://dx.doi.org/10.1201/b20131-35.
Texte intégral« Fundamental Mechanisms of Combustion Instabilities : Coaxial Injector Atomization ». Dans Liquid Rocket Engine Combustion Instability, 145–89. Washington DC : American Institute of Aeronautics and Astronautics, 1995. http://dx.doi.org/10.2514/5.9781600866371.0145.0189.
Texte intégral« Fundamental Mechanisms of Combustion Instabilities : Shear Coaxial Injector Spray Characterization ». Dans Liquid Rocket Engine Combustion Instability, 191–213. Washington DC : American Institute of Aeronautics and Astronautics, 1995. http://dx.doi.org/10.2514/5.9781600866371.0191.0213.
Texte intégral« Numerical Research of Combustion Efficiency of a LOX/GCH4 Shear Coaxial Injector ». Dans International Conference on Computer Technology and Development, 3rd (ICCTD 2011), 1947–52. ASME Press, 2011. http://dx.doi.org/10.1115/1.859919.paper320.
Texte intégralActes de conférences sur le sujet "Coaxial Injectors"
Canino, James, John Tsohas, Venkateswaran Sankaran et Stephen Heister. « Dynamic Response of Coaxial Rocket Injectors ». Dans 42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.2006-4707.
Texte intégralSANKAR, S., A. BRENA DE LA ROSA, A. ISAKOVIC et W. BACHALO. « Liquid atomization by coaxial rocket injectors ». Dans 29th Aerospace Sciences Meeting. Reston, Virigina : American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-691.
Texte intégralHan, Poong-Gyoo, Jae-Hoon Seol, Seong-Ha Hwang et Youngbin Yoon. « The Spray Characteristics of Swirl Coaxial Injectors ». Dans 41st Aerospace Sciences Meeting and Exhibit. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2003. http://dx.doi.org/10.2514/6.2003-490.
Texte intégralCanino, James, Stephen Heister, Venkateswaran Sankaran et Sergey Zakharov. « Unsteady Response of Recessed-Post Coaxial Injectors ». Dans 41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2005. http://dx.doi.org/10.2514/6.2005-4297.
Texte intégralYadav, Amit Kumar, Varghese Mathew Thannickal, Assiz M. P., T. John Tharakan et S. Sunil Kumar. « Comparative Combustion Performance of Swirl Coaxial Injectors ». Dans Proceedings of the 26thNational and 4th International ISHMT-ASTFE Heat and Mass Transfer Conference December 17-20, 2021, IIT Madras, Chennai-600036, Tamil Nadu, India. Connecticut : Begellhouse, 2022. http://dx.doi.org/10.1615/ihmtc-2021.1010.
Texte intégralHill, Ruthie, Michaela R. Hemming, Jared A. Sauer et Kunning G. Xu. « Experimental Study of Liquid-Gas Coaxial Swirl Injectors ». Dans AIAA SCITECH 2024 Forum. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2024. http://dx.doi.org/10.2514/6.2024-1038.
Texte intégralMorrow, David, Anil Nair et Raymond M. Spearrin. « Minimizing hydraulic losses in additively manufactured swirl coaxial injectors ». Dans AIAA Propulsion and Energy 2019 Forum. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-4310.
Texte intégralSchumaker, S., Stephen Danczyk et Malissa Lightfoot. « Effect of Swirl on Gas-Centered Swirl-Coaxial Injectors ». Dans 47th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit. Reston, Virigina : American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-5621.
Texte intégralBaran, Onur, Yusuf Ozyoruk et Bulent Sumer. « Experimental and Numerical Investigation of Coaxial Pressure Swirl Injectors ». Dans AIAA Scitech 2019 Forum. Reston, Virginia : American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-1740.
Texte intégralWoodward, R. D., R. L. Burch, Kenneth K. Kuo et Fan Bill Cheung. « CORRELATION OF INTACT-LIQUID-CORE LENGTH FOR COAXIAL INJECTORS ». Dans ICLASS 94. Connecticut : Begellhouse, 2023. http://dx.doi.org/10.1615/iclass-94.1450.
Texte intégralRapports d'organisations sur le sujet "Coaxial Injectors"
Lightfoot, Malissa D., Stephen A. Danczyk et Douglas G. Talley. Scaling of Gas-Centered Swirl-Coaxial Injectors. Fort Belvoir, VA : Defense Technical Information Center, octobre 2008. http://dx.doi.org/10.21236/ada502809.
Texte intégralHeister, Stephen. Modeling Liquid Rocket Engine Atomization and Swirl/Coaxial Injectors. Fort Belvoir, VA : Defense Technical Information Center, février 2008. http://dx.doi.org/10.21236/ada494724.
Texte intégralSchumaker, S. A., Stephen A. Danczyk, Malissa D. Lightfoot et Alan L. Kastengren. Interpretation of Core Length in Shear Coaxial Rocket Injectors from X-ray Radiography Measurements. Fort Belvoir, VA : Defense Technical Information Center, juin 2014. http://dx.doi.org/10.21236/ada611313.
Texte intégralMuss, J. A., C. W. Johnson, R. K. Cohn, P. A. Strakey et R. W. Bates. Swirl Coaxial Injector Development. Part I : Test Results. Fort Belvoir, VA : Defense Technical Information Center, mars 2002. http://dx.doi.org/10.21236/ada408502.
Texte intégralCheng, G. C., C. W. Johnson et R. K. Cohn. Swirl Coaxial Injector Development. Part II : CFD Modeling. Fort Belvoir, VA : Defense Technical Information Center, mars 2002. http://dx.doi.org/10.21236/ada412040.
Texte intégralCheng, Gary C., Rory R. Davis, Curtis W. Johnson, Jeffrey A. Muss et Daniel A. Griesen. Development of GOX/Kerosene Swirl-Coaxial Injector Technology. Fort Belvoir, VA : Defense Technical Information Center, juin 2003. http://dx.doi.org/10.21236/ada416879.
Texte intégralRodriguez, Juan I., Ivett A. Leyva, Douglas Talley et Bruce Chehroudi. Effects of a Variable-Phase Transverse Acoustic Field on a Coaxial Injector at Subcritical and Near-Critical Conditions (Preprint). Fort Belvoir, VA : Defense Technical Information Center, mai 2008. http://dx.doi.org/10.21236/ada482957.
Texte intégral