Closed rakyuv closed 2 days ago
The issue here is that the terrain and hence the grid is not periodic. When setting up the ghost cells to fill the periodicity condition FDS sees that these don't match, as the grid is not periodic. I'll work on making this a graceful exit. For the time being you will need to use open boundaries for general terrains.
Thank you @marcosvanella for your answer. I thought about this problem and I found the following ideas:
Presently I am able to run terrain with OBST and use PERIOIDIC FLOW ONLY as boundary condition. So for the moment, I'll close the issue. Feel free to update me once you have some solution to the problem.
Thanks in advance.
Hi,
I'd like to simulate methane release from a small vent at a boundary of the domain, and use "PERIODIC FLOW ONLY" boundary condition on both horizontal directions. This simulation (testNoTerrain.txt) runs correctly. However, when I add terrain data using GEOM (testTerrainGEOM.zip), it crashes. On the other hand, when I use terrain with GEOM and "OPEN" boundary conditions (testTerrainGEOM_OPEN.zip), the code runs.
This gives me only three options. To run the simulation and: (1) Use OPEN boundary conditions, with terrain from GEOM. (2) Use PERIODIC FLOW ONLY boundary condition, and use it without terrain from GEOM. (3) Use PERIODIC FLOW ONLY boundary condition and use with Terrain from OBST.
I'd like to run the simulation with VENT on the boundary and be able to have terrain from GEOM and PERIODIC FLOW ONLY boundary condition in both horizontal directions.
Desktop (please complete the following information):
Any help would be greatly appreciated
Thanks in advance