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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37032

Title: A conservative discrete ordinate method for model Boltzmann equations
Authors: Juan-Chen Huang
Contributors: 國立臺灣海洋大學:商船學系
Keywords: Model Boltzmann equation;Discrete ordinate method;Rarefied gas flow
Date: 2011-06
Issue Date: 2015-12-30T06:03:33Z
Publisher: Computers & Fluids
Abstract: Abstract:A class of conservative discrete ordinate method (C-DOM) for the Bhatnagar–Gross–Krook (BGK) model Boltzmann equation is presented. The C-DOM is the extension of the discrete ordinate method in my previous study (Yang and Huang, 1995 [3]). In the C-DOM, a conservative molecular collision process is employed and thus the conservation properties of the collision integral are maintained at the molecular level. For a broad range of Knudsen number, several test problems, including unsteady shock-tube problem and supersonic/hypersonic flows over circular cylinder, are utilized to demonstrate the performance and validity of the DOM and C-DOM. Results show that the C-DOM can greatly reduce the computer time and memory requirements in hypersonic rarefied gas flow computations.
Relation: 45(1), pp.261–267
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/37032
Appears in Collections:[商船學系] 期刊論文

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