Abstract
A combined algorithm using potential/Euler solvers, for transonic flow computations, is described. This combined scheme is substantially more efficient than the basic Euler solver. The potential equations are solved very effeciently by a Multigrid or an AF scheme. These solver require also considerably less computer memory than the corresponding Euler solver. The potential solver is used to provide initial approximation to the Euler solver, to determine the regions where the flow is vortical and where the Euler solver has to be used. Thus, the full Euler equations are solved only in some parts of the computational domain, and the potential equations are used elsewhere. Since the potential solver provides a relatively good approximation to the Euler solution, few (one or two) coupled iterative steps are adequate. The coupled scheme, is faster and requires less computer storage than current Euler solvers.
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References
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© 1986 Springer-Verlag
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Fuchs, L. (1986). A combined numerical scheme for transonic flows. In: Zhuang, F.G., Zhu, Y.L. (eds) Tenth International Conference on Numerical Methods in Fluid Dynamics. Lecture Notes in Physics, vol 264. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0041805
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DOI: https://doi.org/10.1007/BFb0041805
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