supported by the National Natural Science Foundation of China (Grant Nos. 50805130, 50775206);the Zhejiang Nature Science Foundation of China (Grant Nos. Y1090620, R1090833);the Tribology Science Fund of State Key Laboratory of Tribology of China (Grant No. SKLTKF08B01);the Program of Young Leaders and Core Instructors of Disciplines in Science of Zhejiang University of Technology (Grant No. 102004829)
The orientation of the dimple increases the flow distance in the dimple and produces fluid cumulative effect in the dimple length direction, which leads to obvious hydrodynamic effect as a result. In order to investig...