生物力学中片流的边界元分析

计算物理 ›› 1995, Vol. 12 ›› Issue (1): 19-24.

生物力学中片流的边界元分析

韩庆书¹, 杨德全²

1. 北京联大文理学院(北大分校), 100083;
2. 内蒙古民族师院, 028043

收稿日期:1992-10-20 修回日期:1994-06-25 出版日期:1995-03-25 发布日期:1995-03-25

BOUNDARY ELEMENT ANALYSIS OF SHEET FLOW IN BIOMECHANICS

Han Qingshu¹, Yang Dequan²

1. The Branch Campus of Peking University;
2. Inner Mongolia National Teacher's College

Received:1992-10-20 Revised:1994-06-25 Online:1995-03-25 Published:1995-03-25

摘要/Abstract

摘要： 用边界元方法^[1,2]研究了生物力学中肺毛细血管血液的流动,并对肺毛细血管的SFH模型,SFC模型进行了数值模拟,给出血液流动的速度场及血管壁上的面力分布和压力分布.对肺毛细管内皮细胞受的切应力,数值计算表明,正常情况下,在0~4.64×10^-5N/cm²之间,这与Dewey实验结果^[8](0~5×10^-5N/cm²)相一致,肺胞的形态将按使呼吸膜受切应力值最小为原则构形.同时,本文方法还可为数值分析心血管内的血液流动提供一种有效的数值方法,这对生物力学和医学工程是有价值的.

关键词: 血液流动, 粘性边界元方法

Abstract: With boundary element method^[1,2], this paperdeals with blood flow in the blood-vessel of lung. From the numerical simulation for the sheet fluid of SFH model and SFH model in the blood-vessel of lung, the velocity field of blood fluid, the distribution of surface force and pressure on the surface of the blood-vessel are given. The result shows that the stress suppressed on the skin cell of the lung blood-vessel is in the range from 0 to 4.48×10^-5N/cm². This is well consistent with Dewey's experimental result. Also the computational result shows that the formation of lung cell helps the breathing membrane supPOrt the smallest stress. Meanwhile, the method used in this paper provides an efficient approach to numerical analysis of the blood flow in the heart and blood vessel.

Key words: flow of blood, viscous boundary element method

中图分类号:

Q66
R318.01

韩庆书, 杨德全. 生物力学中片流的边界元分析[J]. 计算物理, 1995, 12(1): 19-24.

Han Qingshu, Yang Dequan. BOUNDARY ELEMENT ANALYSIS OF SHEET FLOW IN BIOMECHANICS[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 1995, 12(1): 19-24.

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