Artificial compressibility method for strongly anisothermal low Mach number flows

Artificial compressibility methods aim to reduce the stiffness of compressible Navier-Stokes equations by artificially decreasing velocity acoustic waves in fluid. This approach has originally been developed as an alternative incompressible this avoids resolution a Poisson equation. paper extends method anisothermal low Mach number flows, allowing simulations subsonic flows submitted large temperature variations, including dilatational effects. The procedure is shown be stable and accurate using finite-difference staggered grid system for simulation strongly turbulent channel flow. highly scalable nature well suited complex high-fidelity GPU processing.