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Problem with the MUSCL convective flux scheme solver |
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June 8, 2019, 14:22 |
Problem with the MUSCL convective flux scheme solver
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#1 |
New Member
Bartolomeo Fanizza
Join Date: Jun 2019
Posts: 4
Rep Power: 7 |
Hi everyone,
I started to use converge studio some weeks ago. I'm studying the example case of the supersonic channel and i found a problem with the MUSCL solver. I setted the solver parameters in MUSCL reconstructured central difference and step as a flux limiters (STEP limiter tolerance setted in 1e-5). The problem is the solution of the shock in the channel doesn't look monotone. I plotted the Mach number contour on tecplot and the shock zone looks indented and not clear as it should be. Then i plotted the pressure values on the lower wall of the channel on Matlab and the graphic is characterized by anomaouls fluctuations. I setted another case with the flux blending (default) scheme and first order upwind and the solution of the mach number and the pressure is right so i thounght i'm not setting the MUSCL scheme in the right way. Can anyone help me to know better about the setting of this scheme on Converge Studio? Thanks |
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June 11, 2019, 10:59 |
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#2 |
Member
Yanheng Li
Join Date: Jan 2016
Location: Convergent Science, Madison WI
Posts: 33
Rep Power: 10 |
Hi,
Can you send your problem and setup to support@convergecfd.com? So some of our support engineer will take a look at your setup. Thanks. |
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July 3, 2019, 17:07 |
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#3 |
New Member
Join Date: Dec 2015
Posts: 27
Rep Power: 10 |
Hi,
Could you use MUSCL for both momentum and global? The current implementation of MUSCL requires that mom and global be consistent on numerical schemes. Thanks, |
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Tags |
converge case setup, monotone, monotonicity preserving, muscl, supersonic |
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