View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0004165 | OpenFOAM | Bug | public | 2024-10-17 12:27 | 2024-10-17 15:13 |
| Reporter | Tobermory | Assigned To | henry | ||
| Priority | low | Severity | minor | Reproducibility | always |
| Status | resolved | Resolution | fixed | ||
| Platform | GNU/Linux | OS | Other | OS Version | (please specify) |
| Product Version | 12 | ||||
| Fixed in Version | 12 | ||||
| Summary | 0004165: turbineSiting tutorial does not run properly (returns junk) | ||||
| Description | Since the introduction of the boundEpsilon function in the kEpsilon model (not sure when that happened), the turbulent viscosity is bounded by nutMaxCoeff * nu, which is a good change. However, for atmospheric BL simulations, nut gets pretty large (peaks at 170 for the turbineSiting tutorial case), and so the default value for nutMaxCoeff (1e5) is not large enough - it clips the nut field, and so if the simulation is run "out of the box" the turbulence fields are suppressed and the results are junk. Simple to fix - just increase nutMaxCoeff to 1e8 in constant/momentumTransport and the tutorial runs fine. However, I would also suggest a tweak to the residualControl values in system/fvSolution, reducing them all by an order of magnitude to run the simulation on a little longer. | ||||
| Steps To Reproduce | Run the tutorial "out of the box" and you'll see that the results are junk. | ||||
| Tags | No tags attached. | ||||
