Effects of Viscous Shear Stresses on the Squeeze Films of Porous Parallel Rectangular Plates

Authors

Jaw-Ren Lin, Professor, Department of Mechanical Engineering, Nanya Institute of Technology P.O. Box 324-2259, Chung-Li, Taiwan 320, R.O.C.Follow
Long-Jin Liang, Assistant Professor, Department of Mechanical Engineering, Nanya Institute of Technology, P.O. Box 324-2259, Chung-Li, Taiwan 320, R.O.C.
Rong-Fang Lu, Assistant Professor, Department of Mechanical Engineering, Nanya Institute of Technology, P.O. Box 324-2259, Chung-Li, Taiwan 320, R.O.C.

Abstract

Considering the effects of viscous shear stresses, a study of squeeze-film behavior between porous parallel plates with finite width is presented. Based upon the Brinkman model (BM), two general coupled Reynolds equations derived for curved surfaces [20] are applied to predict the two-dimensional squeeze-film pressure and thereafter the squeeze-film characteristics. The results show that the BM predicts quite different squeeze-film behaviors to those obtained by using the slip-flow model (SFM) and the Darcy model (DM). Comparing with the SFM, the viscous shear effects provide an increase in the load-carrying capacity and lengthen the response time of finite porous squeeze-film plates. However, these trends are reversed as compared to the DM. On the whole, the effects of viscous shear stresses of the BM upon the load-carrying capacity and the response time are more pronounced for the plates tending to be wide.

Recommended Citation

Lin, Jaw-Ren; Liang, Long-Jin; and Lu, Rong-Fang (2004) "Effects of Viscous Shear Stresses on the Squeeze Films of Porous Parallel Rectangular Plates," Journal of Marine Science and Technology: Vol. 12: Iss. 2, Article 6.
DOI: 10.51400/2709-6998.2227
Available at: https://jmstt.ntou.edu.tw/journal/vol12/iss2/6