Title :
PIV investigation on the flow in a model centrifugal blood pump
Author :
Qian Huang ; Chaoqing Li ; Yutaka, Fukino ; Zhigang Zuo ; Shuhong Liu
Author_Institution :
Dept. of Thermal Eng., Tsinghua Univ., Beijing, China
Abstract :
PIV method was applied to measure the flow in a model centrifugal blood pump. The velocity distributions and streamlines on 4 cross sections within the impeller were analyzed. In the PIV tests, saturated solution of sodium iodide was used as the working fluid to match the refraction index and LIF seeding particles were employed. It is indicated that irregular flow patterns presented in the results, including impacts of flow on the leading edge of blades, vortices in the impeller, irregular streamlines and stagnation regions could lead to blood damage. Hydraulic design and structure of the pump need to be modified.
Keywords :
blood; blood flow measurement; flow visualisation; impellers; pumps; stagnation flow; LIF seeding particles; PIV investigation; PIV method; blood damage; centrifugal blood pump flow; impeller cross section streamlines; impeller velocity distributions; irregular flow patterns; irregular streamlines; particle image velocimetry; pump hydraulic design; pump structure; refraction index; sodium iodide saturated solution; stagnation regions; Flow Analysis; Model Blood Pump; PIV;
Conference_Titel :
Fluid Machinery and Fluid Engineering, 2014 ISFMFE - 6th International Symposium on
Print_ISBN :
978-1-84919-907-0
DOI :
10.1049/cp.2014.1159
