Magneto-Hydrodynamic Squeeze Film Characteristics Between A Sphere and A Plane Surface

Authors

Tsu-Liang Chou, Associate Professor, Department of Mechanical Engineering, Nanya Institute of Technology, P.O. Box 324-22-59, Chung-Li, Taiwan 320, R.O.C.
Jen-Wen Lai, Student, Department of Mechanical Engineering, Nanya Institute of Technology, P.O. Box 324-22-59, Chung-Li, Taiwan 320, R.O.C.
Jaw-Ren Lin, Professor, Department of Mechanical Engineering, Nanya Institute of Technology, P.O. Box 324-22-59, Chung-Li, Taiwan 320, R.O.C.Follow

Abstract

Based upon the thin-film magneto-hydrodynamic (MHD) theory, this paper analyzes the squeeze-film characteristics between a sphere and plane surface lubricated with an electrically conducting fluid in the presence of a transverse magnetic field. The MHD Reynolds-type equation governing the squeeze-film pressure is derived using the continuity equation and the magneto-hydrodynamic motion equations. A closed-form solution for the squeezing film pressure is obtained, and applied to predict the MHD squeeze-film characteristics. According to the results obtained, the presence of externally applied magnetic fields signifies an enhancement in the squeeze-film pressure. On the whole, the magnetic-field effects characterized by the Hartmann number produce an increase in value of the load-carrying capacity and the response time as compared to the classical Newtonian-lubricant case. It improves the squeeze film characteristics of the sphere-plane surface system.

Recommended Citation

Chou, Tsu-Liang; Lai, Jen-Wen; and Lin, Jaw-Ren (2003) "Magneto-Hydrodynamic Squeeze Film Characteristics Between A Sphere and A Plane Surface," Journal of Marine Science and Technology: Vol. 11: Iss. 3, Article 6.
DOI: 10.51400/2709-6998.2281
Available at: https://jmstt.ntou.edu.tw/journal/vol11/iss3/6