1009 表面粗さを付加した回転せん断付加装置内の数値解析(OS2-(3) ライフサポートにおける工学技術,オーガナイズドセッション)

概要

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The relationship between surface roughness and shear stress was quantified by computational fluid dynamic analysis to clarify the flow behavior in the rotational shear stressor where the surface roughness was approximately 2μm on the surface of inner stator with the rotational speed of 1,000 rpm where hemolysis level doubled in comparison with smooth surface stator. As a result, it was found that the maximum shear stress caused on the surface of the inner stator by the surface roughness, especially around the edge of the inner stator. Quantification of the relationship between shear stress and hemolysis was magnified by the threshold level that limited low shear stress effect on hemolysis. It was accurately revealed by the analysis with finer mesh whose shear stress has a certain amount of distribution.
一般社団法人日本機械学会の論文
2009-08-25