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Nature of the first iterate for nearly‐free molecular flow

 

作者: B. B. Hamel,   A. L. Cooper,  

 

期刊: Physics of Fluids(00319171)  (AIP Available online 1973)
卷期: Volume 16, issue 1  

页码: 43-44

 

ISSN:0031-9171

 

年代: 1973

 

DOI:10.1063/1.1694171

 

出版商: AIP

 

数据来源: AIP

 

摘要:

A critical evaluation is made of the first iterate of integral iteration of the Boltzmann equation for nearly‐free molecular flow over isolated bodies. It is demonstrated that, for two‐dimensional bodies with diffuse reflection, the first iterate is incapable of describing the correct physics governing nearly‐free molecular flow. Spurious sources and sinks of mass are shown to exist which result in errors of the same order as is being computed.

 

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