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http://dx.doi.org/10.6108/KSPE.2021.25.2.001

Flow Characteristics in a Supersonic Combustor with a Configuration of a Cavity  

Yim, Geon Wook (Department of Aerospace Engineering, Inha University)
Roh, Tae-Seong (Department of Aerospace Engineering, Inha University)
Lee, Hyoung Jin (Department of Aerospace Engineering, Inha University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.25, no.2, 2021 , pp. 1-11 More about this Journal
Abstract
The cavity inside the combustor increases the mixing efficiency of fuel and air by inducing a oscillation of the flow and the recirculation area with a low speed, and enables continuous combustion by maintaining the flame. In this study, the characteristics of the internal flow by change in the shape parameters of the cavity were analyzed through experiments and two-dimensional computational analysis. It was observed that the flow in the supersonic combustor was greatly influenced by various shape parameters of cavity besides L/D. Even with the same L/D, it was confirmed that the flow type varies depending on the depth of the cavity, either open or closed type, and the aft ramp angle of the cavity and the height of the combustor also affect the flow characteristics. As a result, the change in the shape parameters of the cavity had a great influence on the total pressure loss.
Keywords
Scramjet; Cavity; Closed Cavity;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Das, R., Kim, H.D. and Kurian, J., "Experimental Study of Supersonic Entrainment Using a Cavity," Journal of Propulsion and Power, Vol. 30, No. 5, pp. 1143-1151, 2014.   DOI
2 Gruber, M.R., "Fundamental Studies of Cavity-based Flameholder Concepts for Supersonic Combustors," Journal of Propulsion and Power, Vol. 17, No. 1, pp. 146-153, 2001.   DOI
3 Shi, D., Song, W., Wang, Y. and Wang, Y., "Effects of Cavity Configurations on Flameholding and Performances of Kerosene Fueled Scramjet Combustor," International Journal of Turbo & Jet-Engines, Vol. 34, No. 3, pp. 211-220, 2017
4 Yang, I., Lee, Y., Kim, Y. and Lee, K., "Combustion Test of a Mach 5 Scramjet Engine Model," The Journal of the Korean Society of Propulsion Engineers, Vol. 17, No. 3, pp. 9-14, 2013.   DOI
5 Chang, K., Park, O. and Choi, H., "Numerical Analysis and Control of Open Cavity Flow," The Journal of the Korean Society of Propulsion Engineers, Vol. 30, No. 3, pp. 101-108, 2002.
6 Seo, H., Jeong, H., Lee, J. and Byun, Y., "A Study of the Mixing Characteristics for Cavity Sizes in Scramjet Engine Combustor," Journal of the Korean Physical Society, Vol. 55, No. 5, pp. 2180-2186, 2009.   DOI
7 Oh, J., Seo, H., Byun, Y.H. and Lee, J., "Mixing Characteristics of Various Cavity Shapes in SCRamjet Engine," The Journal of the Korean Society of Propulsion Engineers, Vol. 12, No. 1, pp. 57-53, 2008.
8 Kumar, M. and Vaidyanathan, A., "On Shock Train Interaction with Cavity Oscillations in a Confined Supersonic Flow," Experimental Thermal and Fluid Science, Vol. 90, pp. 260-274, 2018.   DOI
9 Palharini, R.C., Scanlon, T.J. and White, C., "Chemically Reacting Hypersonic Flows over 3D Cavities: Flowfield Structure Characterisation," Computers and Fluids, Vol. 165, pp. 173-187, 2018.   DOI
10 Baysal, O. and Stallings Jr, R.L., "Computational and Experimental Investigation of Cavity Flowfields," AIAA Journal, Vol. 26, No. 1, pp. 6-7, 1988.   DOI
11 Moradi, R., Mahyari, A., Gerdroodbary, M. B., Abdollahi, A. and Amini, Y., "Shape Effect of Cavity Flameholder on Mixing Zone of Hydrogen Jet at Supersonic Flow," International Journal of Hydrogen Energy, Vol. 43, No. 33, pp. 16364-16372, 2018.   DOI
12 Maurya, P.K., Rajeev, C., RR, V.K. and Vaidyanathan, A., "Effect of Aft Wall Offset and Ramp on Pressure Oscillation from Confined Supersonic Flow over Cavity," Experimental Thermal and Fluid Science Vol. 68, pp. 559-573, 2015.   DOI
13 Jialing, J. and Liu, W., "Recent Progress in our Scramjet Research," 17th International Symposium on Air Breathing Engines, Munich, Germany, ISABE-2005-1009, Sep. 2005.
14 Shin, S.S., Jeong, J.C., Suryan, A. and Kim, H.D., "A Study on the Reduction of Supersonic Cavity Pressure Oscillations Using a Sub-Cavity System," The Journal of the Korean Society of Propulsion Engineers, Vol. 13, No. 5, pp. 41-47, 2009.
15 Jin, S., Choi, H., Lee, H.J., Byun, J., Bae, J. and Park, D., "Combustion Characteristics Based on Injector Shape of Supersonic Combustor," The Journal of the Korean Society of Propulsion Engineers, Vol. 23, No. 5, pp. 76-87, 2019.   DOI
16 Choubey, G., Devarajan, Y., Huang, W., Mehar, K., Tiwari, M. and Pandey, K.M., "Recent Advances in Cavity-based Scramjet Engine-a Brief Review," International Journal of Hydrogen Energy, Vol. 44, No. 26, pp. 13895-13909, 2019.   DOI
17 Yakar, A.B. and Hanson, R.K., "Cavity Flame-holders for Ignition and Flame Stabilization in Scramjet: An Overview," Journal of Propulsion and Power, Vol. 17, pp. 869-877, 2001.   DOI
18 Hwang, S.W. and Rho, O.H., "Numerical Simulation of Unsteady Supersonic Viscous Flow over a Cavity," The Journal of the Korean Society of Propulsion Engineers, Vol. 21, No. 3, pp. 14-24, 1993.
19 Won, S., Jeong, E., Jeung, I. and Choi, J., "Combustion Characteristics of Hypersonic Scramjet Engine," The Journal of the Korean Society of Propulsion Engineers, Vol. 8, No. 1, pp. 61-69, 2004.