Characteristics of Frictional Resistance of an Enclosed Rotating Disk with Highly Water-Repellent Wall.
Characteristics of Frictional Resistance of an Enclosed Rotating Disk with Highly Water-Repellent Wall.
复制标题
高防水壁封闭式转盘的摩擦阻力特性。
DOI：
10.1299/kikaib.65.2391
复制
发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Keizo Watanabe
中科院分区：
文献类型：
--
作者：
S. Ogata;Keizo Watanabe
为了掌握具有高疏水壁的旋转盘的减阻因素，测量了压力分布和速度分布。可以看出，与光滑圆盘相比，高防水壁圆盘流的流动角增加。利用壁面剪应力与流体在旋转圆盘壁面处的滑移速度成正比的边界条件，分析了封闭旋转圆盘在牛顿流体中的旋转力矩。理论分析结果与实验结果吻合较好。
In order to grasp the factor in drag reduction for a rotating disk with highly water-repellent wall, the pressure distributions and the velocity profiles were measured. It was seen that the flow angle of the highly-water repellent wall disk flow increased comparing that of a smooth disk. Frictional moment of an enclosed rotating disk in Newtonian fluids was analyzed using the boundary condition which the wall shear stress is proportional to the slip velocity of fluid at the rotating disk wall. The analytical results were agree well with the experimental data of a rotating disk with the highly water-repellent wall.