Sorry the forum is not allowing me to type a longer message so i am posting it in parts. The next part of my message:
2. However, it seems the weir is still not working. The simulation runs fine after not considering the 4 corner nodes. but the hole in the mesh is just being considered as a closed wall (just like a building hole) and the water just flows aroung it and does not carry over from the upstream to downstream like it would in a weir. This can be seen from the velocities also.
I am attaching the updated files. Please help me figure out what is wrong.
The model10_results file has the results.
model10_warm is the warm up file to wet the nodes at inlet.
