壁面切应力 meaning in English
wall shear stress
Examples
- Wall shear stress
壁面切应力 - Theoretical expression ot the wall shearing stress has been deduced for the level rotary flow in an internal energy dissipation tunnel
摘要本文推导了水平旋转内消能泄洪洞空腔环流壁面切应力的理论分析表达式。 - Based on the measured data , the change of the friction velocity of turbulent flow and the characteristics of the wall shear stress under different sudden roughnesses and different water depths are analyzed herein
通过实测资料分析不同糙率突变和不同水深的紊流摩阻流速变化情况和水流的壁面切应力的特点。 - The hemodynamic change induced by embolization of the cerebral arteriovenous malformation was analyzed using the water hammer principle . the highest pressure that can be reached when the water hammer phenomenon occurs was calculated . the acute instantaneous pressure rising may be an important factor leading to intracranial hemorrhage or swelling when the avm is embolized . it is shown that long feeding artery of avm will increase the possibility of direct water hammer , and high wall shear stress of feeding artery will increase the water hammer pressure . this suggests that such kind of avms should be embolized stepwise and the systemic pressure should be rationally reduced before embolization
以水击原理分析了脑avm栓塞治疗时血液动力学变化过程，计算了瞬时水击压力可能达到的最高值。瞬时增高的水击压力可能是avm栓塞时发生急性脑出血或脑肿胀的重要血液动力学因素。而avm供血动脉血管壁面切应力偏高和供血动脉过长可增加水击的危险程度，提示对这类结构avm栓塞治疗时应采取合理的降压措施并尽可能分多次栓塞。