309 表面粗さを付加した回転せん断負荷装置内の数値解析(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 the surface roughness and the velocity and the shear stress was solved using a simple calculation model to clarifi the flow behavior in the rotational shear stressor where the roughness was added on the surface of the inner stator. As a result, it was found that the causing location of the maximum and minimum shear stress varied by the surface roughness, and that the velocity distribution hardly changed and the enhancement of the average nth power of the shear stress was little to be less than one percent at the center area of the cylindrical region when the rotational speed was 1,000 rpm and the surface roughness was about 2 μm where the hemolysis level doubled in comparison with the smooth surface roughness.
社団法人日本機械学会の論文
2008-09-12