[jins9158]

I simulated a double suction fan analysis and reviewed the results.

I wanted to know the discharge rate from a double suction fan, and then I found a problem.

I applied 80CMH flow at the outlet as an analysis condition, and applied a total pressure of 0pa as an inlet condition.

According to the law of conservation of mass, the flow rate at the inlet and outlet is the same at 80 cmh, but the flow rate discharged from the fan interface is 90 cmh, which is a strange result.

Before that, I reviewed the following situations and judged that convergence was achieved, but it is a bit confusing..

When interpreting, I identified the following situations:

1. residual 10^-3 level
2. Inlet and outlet pressure monitoring
3. Imbalance less than 1%

I seem to have applied the timescale(10^-5 level) to an appropriate level, can I get some advice on what the problem is?

I attached output file and some image