轴流式血泵黏弹性流体水动力特性数值模拟

胡其会; 张鸣远; 杨万英

您当前的位置：

首页 >

文章列表页 >

轴流式血泵黏弹性流体水动力特性数值模拟

更新时间：2025-07-09

- 轴流式血泵黏弹性流体水动力特性数值模拟
- Numerical Simulation on Viscoelastic Fluid Hydrodynamics in an Axial Blood Pump
- 西安交通大学学报 2010年44卷第11期页码：28-32
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2010-03-22. 作者简介: 胡其会(1981-),男,博士生;张鸣远(联系人),男,教授,博士生导师. 基金项目: 国家自然科学基金资助项目(50576074)
- DOI：
  中图分类号： TH312
- 网络首发：2010-11-10，
  
  纸质出版：2010
- 稿件说明：
移动端阅览
胡其会, 张鸣远, 杨万英. 轴流式血泵黏弹性流体水动力特性数值模拟[J]. 西安交通大学学报, 2010,44(11):28-32.

Numerical Simulation on Viscoelastic Fluid Hydrodynamics in an Axial Blood Pump[J]. 2010, 44(11): 28-32.
胡其会, 张鸣远, 杨万英. 轴流式血泵黏弹性流体水动力特性数值模拟[J]. 西安交通大学学报, 2010,44(11):28-32. DOI：

Numerical Simulation on Viscoelastic Fluid Hydrodynamics in an Axial Blood Pump[J]. 2010, 44(11): 28-32. DOI：

摘要

将一种黏弹性流体k-ε模型应用于自行设计的轴流式血泵内流动特性的数值模拟

分析了轴流泵的水动力特性

得到了泵壳与转子间狭缝中以及叶轮流道内的紊动能和紊动能耗散率的分布规律.研究发现:在相同流量和转速条件下

质量分数为0.06%的黄原胶水溶液的扬程高于以水为工质时的相应扬程

二者最大约相差35%

且计算结果与实测数据符合良好; 轴流泵内黄原胶水溶液的紊动能和紊动能耗散率均显著低于水的相应值

粗略估算每千克黄原胶水溶液的机械能损失只是水的相应值的37%

表示以黏弹性流体为工质时

泵内部的黏性耗损降低

这正是黏弹性流体扬程高于水的扬程的物理原因.

Abstract

A k-ε model for viscoelastic fluids was used to predict the turbulent flow characteristics in an axial blood pump designed and tested in Xi'an Jiaotong University. The pump hydrodynamics of the axial blood pump was analyzed

and the turbulent kinetic energy and the dissipation rate profile in the clearance gap between the rotor and the pump shell and in the main flow passage were achieved. It is found that the head rise of the aqueous solution of Xanthan gum with 0.06% in concentration is higher than that of water at the same flow rate and same rotating speed

with a maximum difference of 35%

and the calculation results agree well with the measured data. The turbulent kinetic energy and the dissipation rate of the Xanthan gum solution are significantly lower than those of water in most part of the flow field. The mechanical energy loss per kilogram for the aqueous solution of Xanthan gum with 0.06% in concentration is only 37% of that for water roughly. It is likely that lower dissipation rate may lead to a higher head rise of the viscoelastic fluid.

关键词

Keywords

references

APEL J, PAUL R, KLAUS S. Assessment of hemolysis related quantities in a microaxial blood pump by computational fluid dynamics[J]. Artificial Organs, 2001, 25(5):341-347.

TETSUYA Y, KAZUMITSU S, AYUMI M. An estimation method of hemolysis within an axial flow blood pump by computational fluid dynamics analysis[J]. Artificial Organs, 2003, 27(10):920-925.

AMY L T, ALEZANTRINA U, PAUL E A, et al. Computational analysis of an axial flow pediatric ventricular assist device[J]. Artificial Organs, 2004, 28(10):881-891.

朱宪然.一种轴流式血泵的设计及其非牛顿流体流动特性研究[D]. 西安: 西安交通大学能源与动力工程学院, 2007.

PINHO F T. A GNF framework for turbulent flow models of drag reducing fluids and proposal for a k-ε type closure [J]. Journal of Non-Newtonian Fluid Mechanics, 2003,114(2/3):149-184.

CRUZ D O A, PINHO F T. Turbulent pipe flow predictions with a low Reynolds number k-ε model for drag reducing fluids [J]. Journal of Non-Newtonian Fluid Mechanics, 2003,114(2/3):109-148.

ZHANG Genguang, ZHANG Mingyuan, YANG Wanying, et al. Effects of non-Newtonian fluid on centrifugal blood pump performance [J]. International Communications in Heat and Mass Transfer, 2008, 35(5):613-617.

朱宪然,张鸣远,刘昊南,等.轴流式血泵内部流场和生物相容性的数值分析[J].西安交通大学学报,2006,40(11):1290-1294.

ZHU Xianran, ZHANG Mingyuan, LIU Haonan, et al. Numerical investigation on flow field and biocompatibility of an axial blood pump[J]. Journal of Xi'an Jiaotong University, 2006, 40(11):1290-1294.

WHITE F M. Fluid mechanics[M]. 6th ed. New York, USA: McGraw-Hill, 2008:720-730.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

轴流式血泵水动力特性和生物相容性的数值模拟

液氢管路输运中静电积聚机理与电流密度分布特征研究

X射线辐照下聚酰亚胺材料空间电荷分布特性的数值模拟

异质裂隙内超临界CO2地热提取特性数值模拟研究

工质与叶轮传热对超临界二氧化碳向心透平气动性能与流动特性的作用机制