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Effect of ramjet engine chamber pressure oscillation on the inlet work performance(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2010年03期
Page:
28-32
Research Field:
Publishing date:

Info

Title:
Effect of ramjet engine chamber pressure oscillation on the inlet work performance
Author(s):
Wang Yufeng;  Guo Bin;  Wu Baoyuan
Xi'an Aerospace Propulsion Institute, Xi'an 710100, China
Keywords:
-
PACS:
V434
DOI:
-
Abstract:
Pressure oscillations induced in ramjet combustion chamber may influence the inlet terminal shockwave. This paper describes numerical simulations of interactions between shockwave and acoustic wave at different oscillation amplitudes and frequencies. The AUSM scheme is used in finite volume method to solve unsteady Navier-Stokes equations. The results show that the response of the terminal shockwave increases with amplitude increasing of the imposed disturbance, but decreases with the frequency increasing.

References:

[1]Hankey W L, Shang J S. Analysis of Self-excited Oscil-lations in Fluid Flows[R]. AIAA 80-1346. [2]Sajben M, Bogar T J, Kroutil J C. Forced Oscillation Experiments in Supercritical Diffuser Flows[J]. AIAA Journal 1984, 22(4): 465-474. [3]Hsieh T, Bogar T J, Coakley T J. Numerical Simulation and Comparison with Experiment for Self-Excited Ocillations in a Diffuser Flow[R]. AIAA 85-1475. [4]Jong Y Oh, Fuhua Ma, Shih-Yang Hsieh, Yang Vigor. Interactions Between Shock and Acoustic Waves in a Supersonic Inlet Diffuser[J]. Journal of Propulsion and Power. 2005, 21(3): 486-495. [5]Robert D Blevins. Flow-induced Vibration[M]. Van Nostrand Reinhold Company, 1977. [6]Newsome R W. Numerical Simulation of Near-Critical and Unsteady, Subcritical Inlet Flow[J]. AIAA Journal, 1984, 22(10): 1375-1379. [7]Bogar T J, Sajben M, Kroutil J C. Characteristic Fre-quencies of Transonic Diffuser Flow Oscillations[J]. AIAA Journal, 1983, 21(9): 1232-1240. [8]王玉峰, 杨宝娥. 超声速进气道喘振的机理研究[J]. 火箭推进, 2008, 34(1): 21-26. [9]张蒙正. 液体火箭发动机燃烧不稳定性试验研究简述[J]. 火箭推进, 2005, 31(6): 16-22.

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