This mostly happens because when I create a new mesh with new boundaries and new names, then in Pre I delete old names, which as a result no longer exist in the results file, making Post to crash when loading a state file ("Severe error. Post is in an unstable state"). I can ...
I have no idea what the boundary condition might be. All I know is that the total mass remains the same. I'm not sure what to use as a boundary condition. I could say that the mass flux through the boundary is zero, that will lead to dv/dh=0 on each boundary. ...
However, if the “reversed flow” warnings do not disappear as the simulation progresses, then one needs to address the issue and move the outlet boundaries to a location where the inflow is no longer encountered. Normally, it has to do with the outlet boundary condition. if you were to us...
However, if the “reversed flow” warnings do not disappear as the simulation progresses, then one needs to address the issue and move the outlet boundaries to a location where the inflow is no longer encountered. Normally, it has to do with the outlet boundary condition. if you were to us...
It is important to clarify that the Fictitious Domain Method (FDM) is not used in this study. FDM, based on the work of Glowinski et al. [71], represents solid bodies by embedding them in a fictitious fluid region where the entire domain is treated as fluid, and particle boundaries are...
OR the outer loop iteration range is not a multiple of number of threads, then the work distribution amongst threads is not balanced. In your above example, should the work not be balanced, it might be mitigated through use of the COLLAPSE clause. You could experiment with adding COLLAPSE(2...
We could have considered a swept mesh for the mesh control domain above. That would make the transition to the rest of the unstructured mesh more difficult and would not actually improve things, since the swirling motions that we expect behind the “car” are relatively isotropic, meaning that...
This is especially important when simulating the raceway in the BF, which feathers with complex boundaries including tuyere details (Fig. 1c). However, to the best of our knowledge, the previous CFD-DEM simulations conducted in the BF raceway have not taken into account the detailed ...
i try to simulate a flow between two parallel plates, the couette flow. i´m using a 2D structured grid. The fact is that i´m not getting the parabolic
1) For inlet, the only buondary condition for most of problems, is the free-stream condition 2) For the side boundaries, the free-stream condidion seems me as more restrictiv then the symmetry condition and thus demands not smaller size of the computational domain 3) For outlet, the free...