Theoretical Study of influence of MHD in an infinitely long rough Porous Journal Bearing

Analytical study of porous rough journal bearing with magneto hydrodynamic fluid in the presence of longitudinal and transverse roughness is investigated. Surface roughness effect is studied by using Christensen stochastic theory. The generalized Reynolds equations for both types of roughness patterns are derived. Reynolds boundary conditions are used to study the characteristics of infinitely long journal bearing. Cavitation angle is obtained by using bisection method. The expressions for pressure, load carrying capacity and attitude angle are obtained. The results are shown in the graph for longitudinal roughness pattern and concluded that, load carrying capacity increases for the increasing values of Hartmann number.