Preliminary measurements of wall shear stress

被引:6
|
作者
Chua, LP [1 ]
Tung, SC [1 ]
Chan, WK [1 ]
机构
[1] Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore
关键词
D O I
10.1016/S0735-1933(98)00122-5
中图分类号
O414.1 [热力学];
学科分类号
摘要
This paper presents the investigation of wall shear stress of the fluid flow in the clearance gap between the impeller face and inlet casing of a blood pump model. This was accomplished through hot-wire anemometry and rotating disk apparatus. The pump assigned was a 5:1 scaled-up model of thr Kyoto-NTN magnetically suspended impeller centrifugal blood pump. Regions of high and low shear stresses were identified. These correspond to spots where likelihood of hemolysis and thrombus formation are high. The hot-wire probe orientation was shown to have a significant influence on the wall shear stress readings. (C) 1999 Elsevier Science Ltd.
引用
收藏
页码:65 / 74
页数:10
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