NUMERICAL-SIMULATION OF OSCILLATING FLOW THROUGH IDEALIZED SCLEROTIC ARTERIES

被引:10
作者
LATINOPOULOS, P
GANOULIS, J
机构
[1] School of Technology, Aristotle University of Thessaloniki, Thessaloniki
关键词
D O I
10.1016/0045-7825(79)90003-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Numerical and approximate computational techniques are presented for studying the oscillating flow in a two-dimensional channel with an irregular surface. A finite element algorithm is formed in order to evaluate the influence of the surface roughness on the basic flow characteristics, while emphasis is given to the development and variation of the shear stresses on the walls. In addition, an approximate solution is obtained when the wall roughness is small compared with the mean height of the channel. Comparison of the two methods in an appropriate range of wall roughness values gives satisfactory results. © 1979.
引用
收藏
页码:279 / 290
页数:12
相关论文
共 10 条
[1]  
Fry, Acute vascular endothelial changes associated with increased blood velocity gradients, Circulation Research, 22, pp. 167-197, (1968)
[2]  
Golia, Evans, Flow separation through annular constrictions in tubes, Experimental Mechanics, pp. 157-162, (1973)
[3]  
Forrester, Young, Flow through a converging-diverging tube and its implications in occlusive vascular disease, J. Biomech., 3, pp. 297-316, (1970)
[4]  
Cheng, Clark, Robertson, Numerical calculations of oscillating flow in the vicinity of square wall obstacles in plane conduits, J. Biomech., 5, pp. 467-484, (1972)
[5]  
Durin, Ganoulis, Stresses in oscillatory converging or diverging flow by finite element simulation, finite elements in water resources, Proc. 2d Int. Conference, pp. 3.85-3.95, (1978)
[6]  
Chow, Soda, Laminar flow in tubes with constriction, Phys. Fluids, 15, pp. 1700-1706, (1972)
[7]  
Zienkiewicz, The finite element method in engineering science, (1972)
[8]  
Baker, Finite element solution algorithm for viscous incompressible fluid dynamics, Int. J. Numer. Meth. Eng., 6, pp. 89-101, (1973)
[9]  
Smith, Brebbia, Finite element solution of Navier-Stokes equations for transient two-dimensional incompressible flow, J. Comp. Phys., 17, pp. 235-245, (1975)
[10]  
Nayfeh, Perturbation methods, (1973)