[Couplage entre injection et modes transverses de grande amplitude : expérience et simulation]
Les instabilités haute-fréquence ont une grande importance technique dans la conception des moteurs-fusées à ergols liquides. Ces phénomènes impliquent un couplage fort entre les modes acoustiques transverses et la combustion. Ils sont actuellement étudiés en combinant expériences et simulations numériques. Du point de vue expérimental, le couplage est examiné sur un système réduit comprenant une chambre à injecteurs multiples (MIC) munie de cinq injecteurs coaxiaux alimentés par de l'oxygène liquide et du méthane gazeux. Ce système est équipé d'un nouvel actionneur VHAM (Very High Amplitude Modulator) constitué de deux tuyères et d'une roue dentée qui bloque alternativement chacune des tuyères. Ce dispositif a été conçu pour obtenir les niveaux d'oscillation transverse les plus importants possibles dans le MIC. Après une rapide revue du VHAM, des expériences à froid utilisant ce modulateur sont présentées. Les champs de vitesse obtenus dans des conditions résonantes utilisant le VHAM sont examinés à plusieurs instants d'un cycle d'oscillation. Les données expérimentales sont comparées avec les champs de vitesse et de pression obtenus avec un code acoustique. Le bon accord observé dans le voisinage de la tuyère indique que la simulation numérique peut être utilisée pour analyser l'écoulement complexe généré par le VHAM.
High frequency combustion instabilities have technical importance in the design of liquid rocket engines. These phenomena involve a strong coupling between transverse acoustic modes and combustion. They are currently being investigated by combining experimentation and numerical simulations. On the experimental level, the coupling is examined in a model scale system featuring a multiple injector combustor (MIC) comprising five coaxial injectors fed with liquid oxygen and gaseous methane. This system is equipped with a novel VHAM actuator (Very High Amplitude Modulator) which comprises two nozzles and a rotating toothed wheel blocking the nozzles in an alternate fashion. This device was designed to obtain the highest possible levels of transverse oscillation in the MIC. After a brief review of the VHAM, this article reports cold flow experiments using this modulator. Velocity maps obtained under resonant conditions using the VHAM are examined at different instants during a cycle of oscillation. Experimental data are compared with numerical pressure and velocity fields obtained from an acoustic solver. The good agreement observed in the nozzle vicinity indicates that numerical simulations can be used to analyze the complex flow field generated by the VHAM.
Mots-clés : Combustion, Couplage acoustique, Instabilité haute fréquence, Injection
Yoann Mery 1 ; Sébastien Ducruix 1 ; Philippe Scouflaire 1 ; Sébastien Candel 1
@article{CRMECA_2009__337_6-7_426_0,
author = {Yoann Mery and S\'ebastien Ducruix and Philippe Scouflaire and S\'ebastien Candel},
title = {Injection coupling with high amplitude transverse modes: {Experimentation} and simulation},
journal = {Comptes Rendus. M\'ecanique},
pages = {426--437},
publisher = {Elsevier},
volume = {337},
number = {6-7},
year = {2009},
doi = {10.1016/j.crme.2009.06.009},
language = {en},
}
TY - JOUR AU - Yoann Mery AU - Sébastien Ducruix AU - Philippe Scouflaire AU - Sébastien Candel TI - Injection coupling with high amplitude transverse modes: Experimentation and simulation JO - Comptes Rendus. Mécanique PY - 2009 SP - 426 EP - 437 VL - 337 IS - 6-7 PB - Elsevier DO - 10.1016/j.crme.2009.06.009 LA - en ID - CRMECA_2009__337_6-7_426_0 ER -
%0 Journal Article %A Yoann Mery %A Sébastien Ducruix %A Philippe Scouflaire %A Sébastien Candel %T Injection coupling with high amplitude transverse modes: Experimentation and simulation %J Comptes Rendus. Mécanique %D 2009 %P 426-437 %V 337 %N 6-7 %I Elsevier %R 10.1016/j.crme.2009.06.009 %G en %F CRMECA_2009__337_6-7_426_0
Yoann Mery; Sébastien Ducruix; Philippe Scouflaire; Sébastien Candel. Injection coupling with high amplitude transverse modes: Experimentation and simulation. Comptes Rendus. Mécanique, Combustion for aerospace propulsion, Volume 337 (2009) no. 6-7, pp. 426-437. doi : 10.1016/j.crme.2009.06.009. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2009.06.009/
[1] F. Richecoeur, Expérimentations et simulations numériques des intéractions entre modes acoustiques transverses et flammes cryotechniques, Ph.D. thesis, Ecole Centrale Paris, December 2006
[2] Time resolved flowfield, flame structure and acoustic characterization of a staged multi-injection burner, Proceedings of the Combustion Institute, Volume 32 (2009), pp. 2965-2972
[3] Dynamics of free jets submitted to upstream acoustic modulations, Physics of Fluids, Volume 19 (2007) no. 1 (Article 013602, 20 pp)
[4] Particle-imaging techniques for experimental fluid-mechanics, Annual Review of Fluid Mechanics, Volume 23 (1991), pp. 261-304
[5] R.J. Adrian, Twenty years of particle image velocimetry, in: International Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon, July 2004
[6] The effect of a discrete window offset on the accuracy of cross-correlation analysis of digital PIV recordings, Experiments in Fluids, Volume 23 (1997) no. 1, pp. 20-28
[7] Orderly structure in jet turbulence, Journal of Fluid Mechanics, Volume 48 (1971), p. 547
[8] Perturbed free shear layers, Annual Review of Fluid Mechanics, Volume 16 (1984), pp. 365-424
[9] Flow structure from an oscillating cylinder. 2. Mode competition in the near wake, Journal of Fluid Mechanics, Volume 191 (1988), pp. 225-245
[10] Acoustic modes in combustors with complex impedances and multidimensional active flames, AIAA Journal, Volume 45 (2007) no. 2, pp. 426-441
[11] Acoustic disturbance from gas non-uniformities convected through a nozzle, Journal of Sound and Vibration, Volume 55 (1977) no. 2, pp. 225-243
- , AIAA SCITECH 2025 Forum (2025) | DOI:10.2514/6.2025-1549
- Numerical study of the linear and non-linear damping in an acoustically forced cold-flow test rig with coupled cavities, International Journal of Spray and Combustion Dynamics, Volume 16 (2024) no. 3, p. 174 | DOI:10.1177/17568277241273677
- Numerical investigation on response characteristics of bi-swirl coaxial injector under oscillating backpressure, Physics of Fluids, Volume 36 (2024) no. 8 | DOI:10.1063/5.0218346
- , 2018 AIAA Aerospace Sciences Meeting (2018) | DOI:10.2514/6.2018-0442
- Reduced Order Modeling Approach to Combustion Instabilities of Liquid Rocket Engines, AIAA Journal, Volume 56 (2018) no. 12, p. 4845 | DOI:10.2514/1.j057098
- , 55th AIAA Aerospace Sciences Meeting (2017) | DOI:10.2514/6.2017-1576
- Prediction and control of combustion instabilities in real engines, Proceedings of the Combustion Institute, Volume 36 (2017) no. 1, p. 1 | DOI:10.1016/j.proci.2016.05.007
- Exploration of combustion instability triggering using Large Eddy Simulation of a multiple injector liquid rocket engine, Combustion and Flame, Volume 169 (2016), p. 129 | DOI:10.1016/j.combustflame.2016.03.020
- Large eddy simulations of multiple transcritical coaxial flames submitted to a high-frequency transverse acoustic modulation, Proceedings of the Combustion Institute, Volume 35 (2015) no. 2, p. 1461 | DOI:10.1016/j.proci.2014.05.142
- Experimental investigation of cryogenic flame dynamics under transverse acoustic modulations, Comptes Rendus. Mécanique, Volume 341 (2013) no. 1-2, p. 100 | DOI:10.1016/j.crme.2012.10.013
- Advances in combustion and propulsion applications, European Journal of Mechanics - B/Fluids, Volume 40 (2013), p. 87 | DOI:10.1016/j.euromechflu.2013.01.002
- Acoustic characterisation of a rectangular rocket combustor with liquid oxygen and hydrogen propellants, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Volume 227 (2013) no. 3, p. 436 | DOI:10.1177/0954410012437511
- Computational studies of the effects of oxidiser injector length on combustion instability, Combustion Theory and Modelling, Volume 16 (2012) no. 2, p. 341 | DOI:10.1080/13647830.2011.631031
- Experiments and numerical simulation of mixing under supercritical conditions, Physics of Fluids, Volume 24 (2012) no. 5 | DOI:10.1063/1.3701374
- Recirculation zone dynamics of a transversely excited swirl flow and flame, Physics of Fluids, Volume 24 (2012) no. 7 | DOI:10.1063/1.4731300
Cité par 15 documents. Sources : Crossref
Commentaires - Politique
Vous devez vous connecter pour continuer.
S'authentifier