A low Mach number preconditioning method has been implemented in commercial computational fluid dynamics software, CFD-FASTRAN. The preconditioning technique offers a way to formulate the Euler and Navier-Stokes equations such that convergences can be made independent of Mach number. This enhancement is shown to provide accurate steady/unsteady state solutions for transonic and low-speed flow through several test cases.
Volume Subject Area:Poster Session
Keywords:Riemann solver, preconditioning, density-based method, low speed flow
Topics:Density, Flow (Dynamics)
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