WAVE INDUCED OSCILLATORY AND STEADY FLOWS IN THE ANNULUS OF A CATHETERIZED VISCOELASTIC TUBE  

作　　者：NG Chiu-On CHANG Yin-Yee 

机构地区：[1]Department of Mechanical Engineering,The University of Hong Kong

出　　处：《Journal of Hydrodynamics》2010年第5期605-617,共13页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the Research Grants Council of the Hong Kong Special Administrative Region, China (Grant No. HKU 715609E)

摘　　要：A perturbation analysis based on equations of motion in Lagrangian form is presented for the oscillatory and time-mean viscous flows induced by a propagating wave of small amplitude in an annulus with a viscoelastic outer wall. Owing to the steady streaming effect, the existence of a catheter in a blood vessel brings in an additional steady pressure gradient, a correction to that predicted by the linear theory, and an additional steady shear stress, which may increase the possibility of hemolysis of red blood cells.A perturbation analysis based on equations of motion in Lagrangian form is presented for the oscillatory and time-mean viscous flows induced by a propagating wave of small amplitude in an annulus with a viscoelastic outer wall. Owing to the steady streaming effect, the existence of a catheter in a blood vessel brings in an additional steady pressure gradient, a correction to that predicted by the linear theory, and an additional steady shear stress, which may increase the possibility of hemolysis of red blood cells.

关 键 词：annulus flow steady streaming catheterized artery 

分 类 号：O357[理学—流体力学]