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Title: Numerical Analysis of the Sudden Expansion Structure of a Scramjet Flow by DSMC Method
Authors: Zuu-Chang Hong
Juan-Chen Huang
Shi-Min Lee
Hon-Wei Lin
Contributors: 國立臺灣海洋大學:商船學系
Keywords: DSMC method
hypersonic flow
rarefied flow
Date: 2013
Issue Date: 2018-11-29T08:08:00Z
Publisher: Journal of the Chinese Institute of Engineers
Abstract: Abstract: Computations using the direct simulation Monte Carlo method are presented for hypersonic rarefied flow over a
supersonic combustion ramjet (scramjet). The primary object of this study is to examine the geometrical effects of a step
jump on flow field structures. The sensitivity of internal flow properties, including shock interaction, vortex, pressure
and temperature distributions to free-stream Mach number and configuration variations, such as the step height and the
ratio of isolator to combustor, is analyzed. Comparisons are made between cases with various configurations, based on
surface pressure and temperature. It is shown that different isolator to combustor ratios and expansion ratios cause profoundly
different results. The flow structures generated in the scramjet inlet directly affect vehicles operating at high
speeds and high altitudes.
Keywords: DSMC method; scramjet; hypersonic flow; rarefied flow
Relation: 37(6) pp.815-826
Appears in Collections:[Department of Merchant Marine] Periodical Articles

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