Effects of fluid inertia in magneto-hydrodynamic annular squeeze films

The effects of fluid inertia on the squeeze film behaviors between two parallel annular disks with an electrically conducting fluid in the presence of a transverse magnetic field are analyzed. The local inertia and the convective inertia of the magneto-hydrodynamic fluid flow are considered in the study. Analytical expressions for the magneto-hydrodynamic squeeze film characteristics are obtained using the momentum approximation method. The results are compared with those based upon the assumption of non-inertial flow. It is found that the inertia correction factor in the magneto-hydrodynamic load-carrying capacity is more pronounced with large Hartmann numbers.