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Analysis of magneto‐hydrodynamic squeeze film characteristics between curved annular plates

Jaw‐Ren Lin (Department of Mechanical Engineering, Nanya Institute of Technology, Taiwan, Republic of China)
Rong‐Fang Lu (Department of Mechanical Engineering, Nanya Institute of Technology, Taiwan, Republic of China)
Won‐Hsion Liao (Department of Mechanical Engineering, Nanya Institute of Technology, Taiwan, Republic of China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 1 October 2004

Abstract

The analysis of squeeze‐film performances between curved annular plates with an electrically conducting fluid in the presence of a transverse magnetic field is presented in this study. The magneto‐hydrodynamic (MHD) Reynolds‐type equation for squeezing‐film curved annular disks is derived using the continuity equation and the MHD 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 applied magnetic fields signifies an increase in the MHD squeeze‐film pressure. Compared with the classical non‐conducting‐lubricant case, the magnetic‐field effect characterized by the Hartmann number provides an enhancement to the MHD load‐carrying capacity and the response time, especially for larger values of the curved shape parameter or smaller values of inner‐outer radius ratio of the curved annular disks.

Keywords

Citation

Lin, J., Lu, R. and Liao, W. (2004), "Analysis of magneto‐hydrodynamic squeeze film characteristics between curved annular plates", Industrial Lubrication and Tribology, Vol. 56 No. 5, pp. 300-305. https://doi.org/10.1108/00368790410550714

Publisher

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Emerald Group Publishing Limited

Copyright © 2004, Emerald Group Publishing Limited