A NUMERICAL STUDY ON MIXING OF TRANSVERSE INJECTION IN SUPERSONIC COMBUSTOR

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ALI M.; AHMED S.; SADR ALESLAM A.K.M.

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Paper Information

Journal: International Journal of Engineering Year:2004 | Volume:17 | Issue:1 (TRANSACTIONS A: BASICS) Page(s): 85-98

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Title

A NUMERICAL STUDY ON MIXING OF TRANSVERSE INJECTION IN SUPERSONIC COMBUSTOR

Author(s)

ALI M. | AHMED S. | SADR ALESLAM A.K.M. | Issue Writer Certificate

Keywords

SCRAMJET ENGINE

TVD SCHEME

BACKWARD-FACING STEP

MIXING

SUPERSONIC STREAM

FLAME HOLDING

Abstract

A numerical study on MIXING of hydrogen injected transversely into a supersonic air ‎stream has been performed be solving Two-Dimensional full Navier-Stokes ‎equations. An explicit Harten-Yee Non-MUSCL Modified-flux-type TVD SCHEME has ‎been used to solve the system of equations, and a zero-equation algebraic turbulence ‎model to calculate the eddy viscosity coefficient. The main objectives of this study are ‎to increase the MIXING and combustion efficiencies, and the FLAME HOLDING capability ‎of a supersonic combustor. The performance of combustor has been investigated by ‎varying the distance of injector position from left boundary keeping constant the ‎backward-facing step height and other calculation parameters. The results show that ‎the configuration for small distance of injector position has high MIXING efficiency but ‎the upstream recirculation cannot be evolved properly, which is an important factor ‎for FLAME HOLDING capability. On the other hand the configuration for very long ‎distance has lower MIXING efficiency due to lower gradient of hydrogen mass ‎concentration on the top of injector caused by the expansion of side jet in both ‎upstream and injector. For moderate distance of injector position, large and elongated ‎upstream recirculation can evolve which might be activated as a good flame holder‏.‏

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APA: Copy

ALI, M., AHMED, S., & SADR ALESLAM, A.K.M.. (2004). A NUMERICAL STUDY ON MIXING OF TRANSVERSE INJECTION IN SUPERSONIC COMBUSTOR. INTERNATIONAL JOURNAL OF ENGINEERING, 17(1 (TRANSACTIONS A: BASICS)), 85-98. SID. https://sid.ir/paper/355262/en

Vancouver: Copy

ALI M., AHMED S., SADR ALESLAM A.K.M.. A NUMERICAL STUDY ON MIXING OF TRANSVERSE INJECTION IN SUPERSONIC COMBUSTOR. INTERNATIONAL JOURNAL OF ENGINEERING[Internet]. 2004;17(1 (TRANSACTIONS A: BASICS)):85-98. Available from: https://sid.ir/paper/355262/en

IEEE: Copy

M. ALI, S. AHMED, and A.K.M. SADR ALESLAM, “A NUMERICAL STUDY ON MIXING OF TRANSVERSE INJECTION IN SUPERSONIC COMBUSTOR,” INTERNATIONAL JOURNAL OF ENGINEERING, vol. 17, no. 1 (TRANSACTIONS A: BASICS), pp. 85–98, 2004, [Online]. Available: https://sid.ir/paper/355262/en

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