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DSMC Study of Strong Shear Nonequilibrium Phenomenon in Hypersonic Knudsen-Layer Flows

  • Wenbin Liu
  • , Jinbai Zhang*
  • , Chun Hian Lee
  • *Corresponding author for this work
  • Beihang University

Research output: Contribution to journalConference articlepeer-review

Abstract

A series of plane Couette flows of rarefied argon gas under different flowfield settings are simulated by the direct simulation Monte Carlo method. The relaxation process of strong shear nonequilibrium is systematically studied. The results show a qualitatively platform-shaped distribution of molecular streamwise velocity under the conditions of small wall spacing (roughly in the Knudsen layer), and large shear rate and wall speed. The analysis of this phenomenon will help understand the relaxation process of hypersonic Knudsen-layer flow and provide some references for future modelling research.

Original languageEnglish
Article number012036
JournalJournal of Physics: Conference Series
Volume2285
Issue number1
DOIs
StatePublished - 2022
Event2022 International Conference on Materials Engineering And Applied Mechanics, ICMEAAE 2022 - Virtual, Online
Duration: 8 Apr 202210 Apr 2022

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