Lim K O, Kennedy J S, Rodkiewicz C M
J Biomech Eng. 1984 Nov;106(4):351-6. doi: 10.1115/1.3138504.
Steady flow within a uniform circular curved tube formed by two 90-deg elbows was studied as a function of psi, the angle between the planes of curvature of the two elbows. Boundary layer separation was found at two locations. The sites of these separation zones were observed to be essentially independent of psi while the Reynolds number at which separation was first detected was found to decrease as psi increased. The relation between separation and the pathogenesis of atherosclerosis is discussed. Secondary flow pattern was found to depend on psi and in some instances on Reynolds number as well.
研究了由两个90度弯头形成的均匀圆形弯管内的稳定流动，该流动是两个弯头曲率平面之间夹角ψ的函数。在两个位置发现了边界层分离。观察到这些分离区的位置基本上与ψ无关，而首次检测到分离时的雷诺数随着ψ的增加而降低。讨论了分离与动脉粥样硬化发病机制之间的关系。发现二次流型取决于ψ，在某些情况下也取决于雷诺数。
