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Artykuły w czasopismach na temat "Coaxial Injectors"
Xu, Jiabao, Ping Jin, Ruizhi Li, Jue Wang i Guobiao Cai. "Numerical Study on Combustion and Atomization Characteristics of Coaxial Injectors for LOX/Methane Engine". International Journal of Aerospace Engineering 2021 (22.05.2021): 1–16. http://dx.doi.org/10.1155/2021/6670813.
Pełny tekst źródłaWoo, Seongphil, Jungho Lee, Yeoungmin Han i Youngbin Yoon. "Experimental Study of the Combustion Efficiency in Multi-Element Gas-Centered Swirl Coaxial Injectors". Energies 13, nr 22 (19.11.2020): 6055. http://dx.doi.org/10.3390/en13226055.
Pełny tekst źródłaKim, Do-Hun, Jeung-Hwan Shin, In-Chul Lee i Ja-Ye Koo. "Atomizing Characteristics of Coaxial Porous Injectors". Journal of ILASS-Korea 17, nr 1 (30.03.2012): 35–44. http://dx.doi.org/10.15435/jilasskr.2012.17.1.035.
Pełny tekst źródłaAnand, Rahul, PR Ajayalal, Vikash Kumar, A. Salih i K. Nandakumar. "Spray and atomization characteristics of gas-centered swirl coaxial injectors". International Journal of Spray and Combustion Dynamics 9, nr 2 (5.08.2016): 127–40. http://dx.doi.org/10.1177/1756827716660225.
Pełny tekst źródłaLee, Jungho, Ingyu Lee, Seongphil Woo, Yeoungmin Han i Youngbin Yoon. "Experimental Study of Spray and Combustion Characteristics in Gas-Centered Swirl Coaxial Injectors: Influence of Recess Ratio and Gas Swirl". Aerospace 11, nr 3 (8.03.2024): 209. http://dx.doi.org/10.3390/aerospace11030209.
Pełny tekst źródłaSivakumar, D., i B. N. Raghunandan. "Jet Interaction in Liquid-Liquid Coaxial Injectors". Journal of Fluids Engineering 118, nr 2 (1.06.1996): 329–34. http://dx.doi.org/10.1115/1.2817381.
Pełny tekst źródłaWoo, Seongphil, Jungho Lee, Ingyu Lee, Seunghan Kim, Yeoungmin Han i Youngbin Yoon. "Analyzing Combustion Efficiency According to Spray Characteristics of Gas-Centered Swirl-Coaxial Injector". Aerospace 10, nr 3 (10.03.2023): 274. http://dx.doi.org/10.3390/aerospace10030274.
Pełny tekst źródłaAhn, Kyubok, Seonghyeon Seo i Hwan-Seok Choi. "Fuel-Rich Combustion Characteristics of Biswirl Coaxial Injectors". Journal of Propulsion and Power 27, nr 4 (lipiec 2011): 864–72. http://dx.doi.org/10.2514/1.b34121.
Pełny tekst źródłaSo, Younseok, Yeoungmin Han i Sejin Kwon. "Combustion Characteristics of Multi-Element Swirl Coaxial Jet Injectors under Varying Momentum Ratios". Energies 14, nr 13 (5.07.2021): 4064. http://dx.doi.org/10.3390/en14134064.
Pełny tekst źródłaWataru, Miyagi, Miki Takahiro, Matsuoka Tsuneyoshi i 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_.
Pełny tekst źródłaRozprawy doktorskie na temat "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.
Pełny tekst źródłaThe 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.
Pełny tekst źródłaThesis 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.
Pełny tekst źródłaBeduneau, 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.
Pełny tekst źródłaBOUKERMOUCHE, 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.
Pełny tekst źródłaJerryLin i 林建國. "The Observation of The Spray from Coaxial Injectors". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/67987526551944470648.
Pełny tekst źródłaWhite, Clayton Andrew. "Modeling of circulation zone and shear layers in coaxial injectors". 2003. http://etd.utk.edu/2003/WhiteClayton.pdf.
Pełny tekst źródłaTitle 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 i 蔡銘倫. "The Effects of Liquid Physical Property on the Atomization of Coaxial Injectors". Thesis, 2013. http://ndltd.ncl.edu.tw/handle/39341541021971834975.
Pełny tekst źródła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 i 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.
Pełny tekst źródła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 i 許庫瑪. "Numerical analysis on combustion characterization of gas centered swirl coaxial injector". Thesis, 2018. http://ndltd.ncl.edu.tw/handle/s4954g.
Pełny tekst źródłaKsiążki na temat "Coaxial Injectors"
Center, Lewis Research, red. LOX/hydrogen coaxial injector atomization test program. [Cleveland, Ohio]: National Aeronautics and Space Administration, Lewis Research Center, 1990.
Znajdź pełny tekst źródłaGomi, 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.
Znajdź pełny tekst źródłaD, Klem Mark, i United States. National Aeronautics and Space Administration., red. Coaxial injector spray characterization using water/air as stimulants. [Washington, DC]: National Aeronautics and Space Administration, 1991.
Znajdź pełny tekst źródłaD, Smith Timothy, i NASA Glenn Research Center, red. Experimental evaluation of a subscale gaseous hydrogen/gaseous oxygen coaxial rocket injector. Cleveland, Ohio: National Aeronautics and Space Administration, Glenn Research Center, 2002.
Znajdź pełny tekst źródłaShear 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.
Znajdź pełny tekst źródłaEXPERIMENTAL EVALUATION OF SUBSCALE GASEOUS HYDROGEN/GASEOUS OXYGEN COAXIAL ROCKET INJECTOR... NASA/TM--2002-211982... NATIONAL AERONAUTICS. [S.l: s.n., 2003.
Znajdź pełny tekst źródłaCzęści książek na temat "Coaxial Injectors"
Armbruster, Wolfgang, Justin S. Hardi i Michael Oschwald. "Experimental Investigation of Injection-Coupled High-Frequency Combustion Instabilities". W 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.
Pełny tekst źródłaKamalakannan Kannaiyan i Aravind Vaidyanathan. "Design and Characterization of Liquid Centered Swirl-Coaxial Injector". W 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.
Pełny tekst źródłaArun, K. R. "Study of Gas-Centered Coaxial Injector Using Jet in a Cross-Flow Mechanism". W Lecture Notes in Mechanical Engineering, 367–76. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-6619-6_40.
Pełny tekst źródłaLempke, Markus, Peter Gerlinger, Michael Rachner i Manfred Aigner. "Euler-Lagrange Simulation of a LOX/H2 Model Combustor with Single Shear Coaxial Injector". W 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.
Pełny tekst źródła"Atomization in Coaxial-Jet Injectors". W 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.
Pełny tekst źródłaAn, H., i W. Nie. "Numerical Study of acoustic characteristics of gas-liquid coaxial injectors". W Advances in Power and Energy Engineering, 205–10. CRC Press, 2016. http://dx.doi.org/10.1201/b20131-35.
Pełny tekst źródła"Fundamental Mechanisms of Combustion Instabilities: Coaxial Injector Atomization". W 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.
Pełny tekst źródła"Fundamental Mechanisms of Combustion Instabilities: Shear Coaxial Injector Spray Characterization". W 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.
Pełny tekst źródła"Numerical Research of Combustion Efficiency of a LOX/GCH4 Shear Coaxial Injector". W International Conference on Computer Technology and Development, 3rd (ICCTD 2011), 1947–52. ASME Press, 2011. http://dx.doi.org/10.1115/1.859919.paper320.
Pełny tekst źródłaStreszczenia konferencji na temat "Coaxial Injectors"
Canino, James, John Tsohas, Venkateswaran Sankaran i Stephen Heister. "Dynamic Response of Coaxial Rocket Injectors". W 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.
Pełny tekst źródłaSANKAR, S., A. BRENA DE LA ROSA, A. ISAKOVIC i W. BACHALO. "Liquid atomization by coaxial rocket injectors". W 29th Aerospace Sciences Meeting. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1991. http://dx.doi.org/10.2514/6.1991-691.
Pełny tekst źródłaHan, Poong-Gyoo, Jae-Hoon Seol, Seong-Ha Hwang i Youngbin Yoon. "The Spray Characteristics of Swirl Coaxial Injectors". W 41st Aerospace Sciences Meeting and Exhibit. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2003. http://dx.doi.org/10.2514/6.2003-490.
Pełny tekst źródłaCanino, James, Stephen Heister, Venkateswaran Sankaran i Sergey Zakharov. "Unsteady Response of Recessed-Post Coaxial Injectors". W 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.
Pełny tekst źródłaYadav, Amit Kumar, Varghese Mathew Thannickal, Assiz M. P., T. John Tharakan i S. Sunil Kumar. "Comparative Combustion Performance of Swirl Coaxial Injectors". W 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.
Pełny tekst źródłaHill, Ruthie, Michaela R. Hemming, Jared A. Sauer i Kunning G. Xu. "Experimental Study of Liquid-Gas Coaxial Swirl Injectors". W AIAA SCITECH 2024 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2024. http://dx.doi.org/10.2514/6.2024-1038.
Pełny tekst źródłaMorrow, David, Anil Nair i Raymond M. Spearrin. "Minimizing hydraulic losses in additively manufactured swirl coaxial injectors". W AIAA Propulsion and Energy 2019 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-4310.
Pełny tekst źródłaSchumaker, S., Stephen Danczyk i Malissa Lightfoot. "Effect of Swirl on Gas-Centered Swirl-Coaxial Injectors". W 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.
Pełny tekst źródłaBaran, Onur, Yusuf Ozyoruk i Bulent Sumer. "Experimental and Numerical Investigation of Coaxial Pressure Swirl Injectors". W AIAA Scitech 2019 Forum. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2019. http://dx.doi.org/10.2514/6.2019-1740.
Pełny tekst źródłaWoodward, R. D., R. L. Burch, Kenneth K. Kuo i Fan Bill Cheung. "CORRELATION OF INTACT-LIQUID-CORE LENGTH FOR COAXIAL INJECTORS". W ICLASS 94. Connecticut: Begellhouse, 2023. http://dx.doi.org/10.1615/iclass-94.1450.
Pełny tekst źródłaRaporty organizacyjne na temat "Coaxial Injectors"
Lightfoot, Malissa D., Stephen A. Danczyk i Douglas G. Talley. Scaling of Gas-Centered Swirl-Coaxial Injectors. Fort Belvoir, VA: Defense Technical Information Center, październik 2008. http://dx.doi.org/10.21236/ada502809.
Pełny tekst źródłaHeister, Stephen. Modeling Liquid Rocket Engine Atomization and Swirl/Coaxial Injectors. Fort Belvoir, VA: Defense Technical Information Center, luty 2008. http://dx.doi.org/10.21236/ada494724.
Pełny tekst źródłaSchumaker, S. A., Stephen A. Danczyk, Malissa D. Lightfoot i Alan L. Kastengren. Interpretation of Core Length in Shear Coaxial Rocket Injectors from X-ray Radiography Measurements. Fort Belvoir, VA: Defense Technical Information Center, czerwiec 2014. http://dx.doi.org/10.21236/ada611313.
Pełny tekst źródłaMuss, J. A., C. W. Johnson, R. K. Cohn, P. A. Strakey i R. W. Bates. Swirl Coaxial Injector Development. Part I: Test Results. Fort Belvoir, VA: Defense Technical Information Center, marzec 2002. http://dx.doi.org/10.21236/ada408502.
Pełny tekst źródłaCheng, G. C., C. W. Johnson i R. K. Cohn. Swirl Coaxial Injector Development. Part II: CFD Modeling. Fort Belvoir, VA: Defense Technical Information Center, marzec 2002. http://dx.doi.org/10.21236/ada412040.
Pełny tekst źródłaCheng, Gary C., Rory R. Davis, Curtis W. Johnson, Jeffrey A. Muss i Daniel A. Griesen. Development of GOX/Kerosene Swirl-Coaxial Injector Technology. Fort Belvoir, VA: Defense Technical Information Center, czerwiec 2003. http://dx.doi.org/10.21236/ada416879.
Pełny tekst źródłaRodriguez, Juan I., Ivett A. Leyva, Douglas Talley i 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, maj 2008. http://dx.doi.org/10.21236/ada482957.
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