方案摘要
方案下载应用领域 | 医疗/卫生 |
检测样本 | 全血/血清/血浆 |
检测项目 | |
参考标准 | 暂无 |
采用英国Litron公司的LDY300激光器和LaVison的ImagerProSX 5M型跨帧相机,构成一粒子成像测速系统。对轴流血液泵的内部流场的速度场进行了实验测量和分析研究。
Taking the axial flow blood pump as the research object, we used the particle image
velocimetry (PIV) to measure the flow distribution of inlet, outlet and impeller at the changing
rotation speed. Effects of the acceleration and deceleration process on the change of internal
flow field were compared and analyzed. The experimental results show that the flow field of
inlet and outlet area of the blood pump is stable at the constant working speed, but the vortex
and reflux exist in the impeller area. However, acceleration of the impeller increases the flow
field’s volocity and disturbance. Deceleration of the impeller rotation speed reduces the flow
velocity, and the flow state of overall flow field is relatively stable. Design of the pulsatile
blood pump should be optimized in order to reduce the occurrence of hemolysis in the process of acceleration and deceleration.
在一个双稳湍流涡旋火焰中,对间歇性动态的时间-频率定位
Particle-laden Taylor-Couette流:高阶转变和径向局部波浪涡旋的证据
7根杆束的流体-结构相互作用:用实验数据对比数值模拟
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