Ansys Fluent Analysis of a Thermo-Hydrodynamically Lubricated Journal Bearing

Journal bearings are employed to hold the propellers in high-speed machines such as turbines, combustion engines, etc. Maximum of the design methods employed in the design of journal bearings are based on isothermal hydrodynamic conditions which is not an accurate value. The true value can be getting if the actual conditions are fulfilled which means for the fluid behaviour normally considered as laminar but in the case of motion the fluid flow is not an exactly laminar flow to get the actual flow pattern in some case turbulence model is used to find actual fluid behaviour. In this case the work is kept the condition as laminar. In this design, different input parameters such as viscosity, speed, and shape (L/D ratio) effect on thermo-hydrodynamic lubrication model (i.e., Effect of heat on the viscosity is include in the computation) are carried out to arrive the performance parameters such as pressure developed in the bearing while in operation by using Ansys Fluent. Computational fluid dynamics is a division of numerical methods which finds increasing use nowadays in the lubrication industry. Finite volume method is the basic background of Fluent software.