I am attempting to simulate the wind load on a building. I would like to know the pressure on the cladding of the building. The project is here:
The values that I am getting do not seem reasonable. When I have the wind blowing from the direction that I have identified as north, the pressures are negative everywhere on the surface of the building, including the wall that is facing directly into the wind, which is counter intuitive. The values also have a much larger absolute value (more negative) than what I would expect based on calculating the wind load from the building code.
I have tried the simulation using the default numerics, and the numerics that were used in this wind load simulation for the Bank of China Tower:
The results using the two different sets of numerics have a similar pattern, but the absolute value is much greater with the default numerics.
The mesh that I am using is relatively simple, to save on CPU time. Perhaps the problem is just that the mesh of my enclosure is too simple, so I have generated a more detailed mesh, but I don’t want to waste the CPU time running a bunch of longer simulations if there is some basic mistake that I am making.