
Query regarding reference values in Ansys solver
Hi everyone,
I had a query regarding how to get the reference values (especially area) for our geometries to simulate.
When I was simulating the flow over a car I used the project area tool to find the area which doesn’t change after a particular lower value as the reference area value. However, this technique didn’t work for me when I was simulating flow over a cylinder so for that case, I just used the curved surface area.
Right now I am simulating an axisymmetric flow over a venturi nozzle and wanted to know how to calculate the reference area from a 2D geometry. I did some searching and found one reply from the forums stating we need to assume a 3D geometry of the 3D case and take the frontal area from that case. I just wanted to know if that is correct or if there is a generalised easier or right way of approaching this.
Additionally, when we use pressure value as the inlet condition, do we need to put the reference value velocity as 0?
Finally, when we use the reference values do we always compute it from the inlet?
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