@Article{fdmp.2013.009.419,
AUTHOR = {J.R.  Lin, P.J.  Li, T.C.  Hung},
TITLE = {Effects of Non-Newtonian Ferrofluids on the Performance Characteristics of Long Journal Bearings},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {9},
YEAR = {2013},
NUMBER = {4},
PAGES = {419--434},
URL = {http://www.techscience.com/fdmp/v9n4/24356},
ISSN = {1555-2578},
ABSTRACT = {On the basis of the Shliomis ferrofluid model (1972) together with the micro-continuum theory of Stokes (1966), the influences of non-Newtonian ferrofluids on the steady-state performance of long journal bearings have been investigated in the present paper. Analytical solutions for bearing performances are obtained from the non-Newtonian ferrofluid Reynolds-type equation. Comparing with the Newtonian non-ferrofluid case, the effects of non-Newtonian ferrofluids with applied magnetic fields provide an increase in the zero pressure-gradient angle and the load capacity, and a decrease in the friction parameter, especially for a larger non-Newtonian couple stress parameter and magnetic Langevin’s parameter. For the long journal bearing lubricated with non-Newtonian ferrofluids and operating at larger couple stress parameter and magnetic Langevin’s parameter (for example, N=0.3, ξ =50), slight variation is observed for the friction parameter, but higher bearing loads are obtained with increasing values of the volume concentration parameter.},
DOI = {10.3970/fdmp.2013.009.419}
}