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Z. Naturforsch. 67a, 333 – 337 (2012)
doi:10.5560/ZNA.2012-0036
Non-Newtonian Micropolar Fluid Squeeze Film Between Conical Plates
Jaw-Ren Lin, Chia-Chuan Kuo, Won-Hsion Liao, and Ching-Been Yang
Department of Mechanical Engineering, Taoyuan Innovation Institute of Technology, No. 414, Sec. 3, Jhongshan E. Rd., Jhongli, 320, Taiwan
Received October 19, 2011 / published online July 3, 2012
Reprint requests to: J.-R. L.; Tel.: 886-3-4361070 ext. 6212, Fax: 886-3-4384670, E-mail: jrlin@tiit.edu.tw
By applying the micropolar fluid model of Eringen (J. Math. Mech. 16, 1 (1966) and Int. J. Mech. Sci. 31, 605 (1993)), the squeeze film lubrication problems between conical plates are extended in the present paper. A non-Newtonian modified Reynolds equation is derived and applied to obtain the solution of squeeze film characteristics. Comparing with the traditional Newtonian case, the non-Newtonian effects of micropolar fluids are found to enhance the load capacity and lengthen the approaching time of conical plates. Some numerical results are also provided in tables for engineer applications.
Key words: Micropolar Fluids; Conical Plates; Squeeze Films; Load-Carrying Capacity; Approaching Time.
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