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A CODE VERIFICATION EXERCISE FOR THE UNSTRUCTURED FINITE-VOLUME CFD SOLVER ISIS-CFD

A CODE VERIFICATION EXERCISE FOR THE UNSTRUCTURED FINITE-VOLUME CFD SOLVER ISIS-CFD,G. B. Deng,P. Queutey,M. Visonneau

A CODE VERIFICATION EXERCISE FOR THE UNSTRUCTURED FINITE-VOLUME CFD SOLVER ISIS-CFD   (Citations: 3)
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This paper is devoted to a code verification exercise for the unstructured finite-volume CFD solver ISIS-CFD. This exercise is limited to the verification of the 2D Navier-Stokes solver by prescribing a turbulence eddy-viscosity. The unstructured code is tested using three dierent types of grid, namely a Cartesian grid, an unstructured triangular grid, and an unstructured quadrilateral grid generated by HEXPRESS. For each type of grid, the order of accuracy of the numerical scheme is determined based on a set of 6 grids and compared to the theoretical order of accuracy. Convergence behaviour of the code on dierent grids is analysed.
Published in 2006.
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    • ...In fact, a previous study using the same manufactured solution shows that we obtain a numerical solution with second order accuracy to the Navier-Stokes equation with prescribed turbulent eddy-viscosity using the same triangular grids [2]...
    • ...apparent order decreases from 2.1 to 1.9 is due to the fact that the pressure equation has an undefined order of convergence ranging from 1 to 2 as demonstrated in the previous study [2]...

    G. B. Deng. Solution Qualification and Uncertainty Estimation for Local Quantities

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