Author(s): A. Arnone; S. S. Stecco
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Keywords: No Keywords
Abstract: Chorin's method of artificial compressibility is a powerful tool for adapting compressible flow codes to incompressible fluids. In recent years, compressible flow solvers for turbomachinery have undergone impressive evolutions. In particular, Runge-Kutta schemes with accelerating strategies such as variable-coefficient implicit residual smoothing and multigrid have proved to be accurate and reliable. The paper discusses the extension of a multigrid transonic flow solver to work in an incompressible regime. The choice of the artificial compressibility coefficient in conjunction with multigrid is discussed for both the Euler and Navier-Stokes equations.
Year: 1991