drag shear 中文意思是什麼
drag shear
解釋
由迎面阻力產生的剪力-
The tension force, shear forces ( including pushing force, cutting force and friction force ), impulse force, hydrodynamic drag on the suction pipes, and the force resulted from the pressure difference, etc, are the main forces for detail discussion in this paper
詳細討論了主要作用力：在波浪補償器作用下的纜繩拉力、耙頭與海床間的土壤剪切力、作用在耙吸管上的水流阻力及由於壓力差在耙頭處產生的推動力等。 -
It is found that drag reduction occurs with adequate wavenumbers and grows with an increase of h. the mechanisms are revealed through variations of velocity profile and the decrease of wall shear stress
分析減阻機理是流速分佈曲線及近壁區速度梯度介於層流與湍流之間， h值增大引起壁面剪應力顯著下降。
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