Back L H, Cho Y I, Crawford D W
J Biomech Eng. 1986 Aug;108(3):251-8. doi: 10.1115/1.3138611.
Phasic and spatial time-averaged pressure distributions were measured in a 60-deg femoral artery branch model over a large range of branch flow ratios and at physiological Reynolds numbers of about 120 and 700. The results obtained with an in-vivo like flow wave form indicated spatial adverse time average pressure gradients in the branch vicinity which increased in magnitude with branch flow ratio, and the importance of the larger inertial effects at the higher Reynolds numbers. Pressure losses in the branch entrance region were relatively large, and corresponding flow resistances may limit branch flow, particularly at higher Reynolds numbers. The effect of branch flow was to reduce the pressure loss in the main lumen.
在一个60度的股动脉分支模型中，在大范围的分支流量比以及大约120和700的生理雷诺数条件下，测量了相位和空间时间平均压力分布。使用类似体内的流动波形获得的结果表明，分支附近存在空间反向时间平均压力梯度，其大小随分支流量比增加而增大，并且在较高雷诺数时较大惯性效应的重要性。分支入口区域的压力损失相对较大，相应的流动阻力可能会限制分支流量，特别是在较高雷诺数时。分支流动的作用是减少主腔中的压力损失。
