Flow Analysis of a Low-Pressure Impactor by Compressible Navier-Stokes Equation

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Jiro Koga¹  Shiro Matsumoto¹  Akihiko Nammo¹ 

[1] Dept. of Applied Chemistry, Saitama University

关键词: Fluid Mechanics;    Computational Fluid Dynamics;    TVD Scheme;    Separation Efficiency;   

DOI  :  10.1252/jcej.28.381

来源: Maruzen Company Ltd

【 摘 要 】

References(12)A TVD (Total Variation Diminishing) scheme based on a compressible Navier-Stokes equation was applied to axisymmetric flow in a low pressure impactor with a circular nozzle. This TVD scheme was a type combined to a two-step MacCormack scheme. The shock was clearly observed at the half distance between the outlet of jet and the impaction plate. The critical stagnation pressure ratio of the impactor designed by Hering et al. was found to be about 0.40. The separation efficiency curve of the impactor was not dependent on the stagnation pressure ratio, nor the distance between the jet and the plate when the stagnation pressure ratio was less than 0.70.

【 授权许可】

Unknown