期刊
TRIBOLOGY INTERNATIONAL
卷 127, 期 -, 页码 324-332出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2018.06.016
关键词
Lubrication; Soft porous media; Lift generation; Pressure
资金
- National Science Foundation [1511096]
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1511096] Funding Source: National Science Foundation
In this paper, we report a comprehensive, experimental study to examine the lubrication theory for highly compressible porous media. It is inspired by the frictionless motion of red cells in a tightly fitting capillary and a human skiing/snowboarding. A novel experimental setup was developed where lubrication pressure generated in a soft porous layer was measured as planar board glides over it. Both laterally confined (1-D) and unconfined (2-D) situations were examined. The results excellently agree with the theory by Feng & Weinbaum (J. Fluid Mech. 422 (2000), pp. 281-317) and Wu & Sun (Med. Sci. Sports Exerc. 43 (2011), pp. 1955-1963). The paper demonstrates the significant potential of applying soft porous media in lubrication with tremendously enhanced hydrodynamic lift.
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