下呼吸道重开的生物流体力学研究:理论分析  

Biofluid mechanics investigation on obstructed pulmonary lower airway reopening: theoretical analysis

作　　者：许世雄[1] Y T Chew HTLow 计琳[1] 吕岚[1] 

机构地区：[1]复旦大学力学与工程科学系,上海200433 [2]新加坡国立大学机械与制造工程系,新加坡119260

出　　处：《水动力学研究与进展（A辑）》2001年第1期35-43,共9页Chinese Journal of Hydrodynamics

摘　　要：本文理论分析了受阻塞肺下呼吸道重开的生物流体力学问题。解控制流动的低雷诺数的 Stokes方程 ,得出阻塞液前阵面和指状气泡前阵面的位置、速度等公式。所得结果和作者前文所发表的实验结果 [17] 吻合得相当好。进一步分析表明阻塞液粘度、管径和外加压强对流动有较大影响 ,毛细数 Ca同样受到这些参数的影响。The obstructed lower airway reopening was considered theoretically in this paper. The expressions of both positions and velocities of liquid front and bubble front were deduced by solving the Stokes equation at low Reynolds number. It is showed that the theoretical results coincide with experimental results, and the liquid viscosity, tube diameter, applied pressure have appreciable effects on flow patterns and capillary number C a.

关 键 词：受阻塞肺下呼吸道 重开 生物流体力学 

分 类 号：R318.01[医药卫生—生物医学工程]