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