| 后负荷对Sarns2000离心泵溶血情况的影响 |
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| 引用本文： | 韩露,王伟,俞晓青,丁文祥.后负荷对Sarns2000离心泵溶血情况的影响[J].上海交通大学学报(医学版),2011,31(9):1347-1351. |
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| 作者姓名： | 韩露 王伟 俞晓青 丁文祥 |
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| 作者单位： | 1. 上海交通大学医学院附属上海儿童医学中心心胸外科,上海200127;上海交通大学医学院附属上海儿童医学中心,儿科转化医学研究所,上海200127
2. 上海交通大学医学院附属上海儿童医学中心心胸外科,上海,200127 |
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| 基金项目： | 浦东新区科技发展基金创新资金(PKJ2010-Y30)~~ |
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| 摘 要： | 目的探讨离心泵后负荷压力对血液破坏的影响。方法采用计算流体仿真(CFD),实现Sarns2000离心血泵的数值分析。对比分析该泵有后负荷工况和空载状态时泵内液体流速、压力、剪切力的差异。结果在1 400 r/min转速下,有后负荷时流速降低,泵的流量降低。泵内压力增大,溶血破坏增加;但剪切力大于150 Pa的区域小于0.000 032%,对溶血的控制较好。结论后负荷压力会导致Sarns2000离心泵内溶血破坏的概率增加,但不会出现因剪切力导致大量溶血的问题。
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| 关 键 词： | 计算流体仿真 离心式血泵 数值模拟 溶血 |
Effect of afterload pressure on hemolytic blood damage in Sarns2000 centrifugal pump |
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| HAN Lu,WANG Wei,YU Xiao-qing,DING Wen-xiang.Effect of afterload pressure on hemolytic blood damage in Sarns2000 centrifugal pump[J].Journal of Shanghai Jiaotong University:Medical Science,2011,31(9):1347-1351. |
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| Authors: | HAN Lu WANG Wei YU Xiao-qing DING Wen-xiang |
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| Institution: | HAN Lu1,2,WANG Wei1,YU Xiao-qing1,DING Wen-xiang1(1.Department of Cardiovascular and Thoracic Surgery,2.Institute of Pediatric Translational Medicine,Shanghai Children's Medical Center,Shanghai Jiaotong University School of Medicine,Shanghai 200127,China) |
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| Abstract: | Objective To investigate the effect of afterload pressure on hemolytic blood damage in centrifugal pump.Methods The differences between velocity,pressure and surface shear force of the internal flow of Sarns2000 centrifugal pump with afterload pressure and those without afterload pressure were obtained by computational fluid dynamics(CFD).Results The velocity and flow of pump deceased when the rotational speed was 1 400 r/min with afterload pressure.The hemolytic blood damage increased with the pressure inc... |
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| Keywords: | computational fluid dynamics centrifugal pump numerical simulation hemolysis |
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