Higher Order Chapman–Enskog Expansion for Dilute Hard Spheres
Journal of the Physical Society of Japan(2006)
摘要
The matrix elements corresponding to the collision term in the Boltzmann equation for dilute hard spheres were calculated with a computer algebra system and the fast Fourier transform, and utilized to solve the 10th-order Chapman–Enskog (CE) expansion for a steady heat-transfer problem. The solution of the CE expansion was examined using the results of the direct simulation Monte Carlo method and was shown to be a good approximation in the region of moderate Knudsen number.
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关键词
Boltzmann equation,Chapman-Enskog expansion
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