Abstract
A computational method for a compressible Navier-Stokes equation is developed to study high-speed gas flow in a narrow gap. The computational method is composed of an implicit time marching scheme and 3rd-order accurate TVD scheme. The time marching scheme is based on the Beam-Warming delta form with approximate-factorization scheme and introduced in Pulliam and Chaussee's diagonal form. The TVD scheme is composed of Roe's flux splitting scheme and the MUSCL approach with van Leer's differentiable limiter. The reliability of the code is estimated on the plane Couette flow and shock reflection problem. Finally, the high-speed gas flow in the journal gas bearing is computed and the results are compared with those of the Reynolds equation in tribology.
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