Test cases for 2d compressible viscous flows

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 October 24, 2017, 15:29 Test cases for 2d compressible viscous flows #1 New Member   Aranya Dan Join Date: Oct 2017 Posts: 19 Rep Power: 8 I have written a code for solving unsteady 2d compressible viscous flows with WENO5 schemes and looking for simple test cases. I have checked the inviscid case solving 2d Reimann problems and have acceptable results. Lid-driven cavity isn't a good option as the benchmarks available are for incompressible flows. I dont want to solve over 0012 airfoil as setting up the grid itself would take a lot of time. Please mention some test cases along with reference papers to test run my code.

 October 25, 2017, 08:54 #2 Super Moderator   Praveen. C Join Date: Mar 2009 Location: Bangalore Posts: 342 Blog Entries: 6 Rep Power: 18 Some problems you can try with a weno code on Cartesian grids These two have smooth solutions but good to test code since they have exact solution: Plane Poiseuille (density is constant) Plane couette (constant pressure, variable density) Shock-boundary layer interaction: google this A Validated Nonlinear Kelvin-Helmholtz Benchmark for Numerical Hydrodynamics https://arxiv.org/abs/1509.03630 A vortex roll-up test, incompressible but good to test weno scheme since vorticity develops sharp gradients, you can try this at low mach number. Jian-Guo Liu and Chi-Wang Shu, A High-Order Discontinuous Galerkin Method for 2D Incompressible Flows, Journal of Computational Physics 160(2):577-596, August 1999, DOI: 10.1006/jcph.2000.6475

 October 25, 2017, 09:26 #3 Senior Member   Joern Beilke Join Date: Mar 2009 Location: Dresden Posts: 501 Rep Power: 20 There are some testcases on: https://github.com/unicfdlab?tab=repositories (pisoCentral, QGD, hybridSolvers) Some of the cases are described here: https://www.researchgate.net/publica..._viscous_flows

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