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Effects of viscosity‐pressure dependency on the non‐Newtonian squeeze film of parallel circular plates
Author(s) -
Lin JawRen,
Chu LiMing,
Liang LongJin
Publication year - 2013
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.1188
Subject(s) - viscosity , newtonian fluid , compressibility , lubricant , mechanics , non newtonian fluid , dependency (uml) , materials science , stress (linguistics) , thermodynamics , composite material , engineering , physics , linguistics , philosophy , systems engineering
On the basis of the Barus experimental research, the viscosity of an incompressible lubricant grows exponentially with its pressure. Therefore, the squeeze film issues between parallel circular plates lubricated with a non‐Newtonian couple‐stress fluid are reexamined in the present study by considering the effects of viscosity‐pressure dependency. According to the results, the influences of viscosity‐pressure dependency raise the load capacity and lengthen the approaching time of the plates. Numerical results under different values of the viscosity parameter and the non‐Newtonian parameter are also provided in tables for engineering applications. Copyright © 2012 John Wiley & Sons, Ltd.