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Relaxation time simulation method with internal energy exchange for perfect gas flow at near-continuum conditions

✍ Scribed by Moran Wang; Michael Macrossan; Zhixin Li


Book ID
104012090
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
260 KB
Volume
12
Category
Article
ISSN
1007-5704

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✦ Synopsis


This paper presents an internal energy exchange scheme for the relaxation time simulation method (RTSM) which solves the BGK equation for the perfect gas flow at near-continuum region discrete rotational energies are introduced to model the relaxation of internal energy modes. This development improved the agreements between RTSM and DSMC with little additional computational cost. The result shows a possibility of an improved hybrid RTSM/DSMC code for the continuum/rarefied gas flow.