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#1 |
New Member
Gurjot Ahuja
Join Date: Jun 2022
Posts: 5
Rep Power: 4 ![]() |
Hello,
I am simulating a diamond airfoil at supersonic flow at Mach 3. I am using rhoCentralFoam as a solver and k-w SST turbulence model to solve this case. When I use velocity boundary condition as "slip" for the airfoil boundary, my run is successful without any problems, but when I change the BC to "noSlip". I am getting a "Negative Initial Temperature T0" error and the run crashes. I have also tried to limit the temperature using fvOptions, but it's not working. I have also checked by refining the mesh, but still, the problem exists. Please help me. Other boundary conditions for airfoil are as follows: p - type zeroGradient T - type zeroGradient alphat - type compressible::alphatWallFunction, value uniform 8.88e-9 epsilon - type epsilonWallFunction, value uniform 365627.58 k - type kqRWallFunction, value uniform 901.31 nut - type nutkWallFunction, value uniform 0.199 omega - type omegaWallFunction, value uniform 4507.4 Last edited by tum-student; July 10, 2022 at 09:53. |
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#2 |
New Member
Join Date: Nov 2023
Posts: 17
Rep Power: 2 ![]() |
Hello,
Have you had any luck in solving this issue? I keep getting those negative Temperature errors, however, after a few tenths of a second in the simulation. Thank you. |
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Tags |
airfoil, negative temperature, noslip, rhocentralfoam, viscous flow |
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