Application of Gas-Surface Interaction Models in Rarefied Hypersonic Flows

Myint, Zay Yar Myo; Khlopkov, Yuri Ivanovich; Khlopkov, A. Yu

doi:10.12966/pts.03.01.2014

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The Description Of Gas-surface Interaction Models1

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“…For no significant additional cost, the CLL model gave more realistic scattering distributions [11]. CLL model is widely recognized examples of its application are presented in multiple works [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”

Section: The Description Of Gas-surface Interaction Modelsmentioning

confidence: 99%

Effects of Gas-surface Interaction Models on Spacecraft Aerodynamics

Khlopkov¹,

Chernyshev²,

Myint³

et al. 2016

International Journal of Aeronautical and Space Sciences

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The influence of boundary condition of the bodies with gas flows is one of the most important problems in high-altitude aerodynamics. In this paper presents the results of the calculation of aerodynamic characteristics of aerospace vehicle using Monte-Carlo method based on three different gas-surface interaction models -Maxwell model, Cercignani-Lampis-Lord (CLL) model and Lennard-Jones (LJ) potential. These models are very sensitive for force and moment coefficients of aerospace vehicle in the hypersonic free molecular flow. The models, method and results can be used for new generation aerospace vehicle design.

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