I’m getting Cp values from OpenVSP, where I’m running my CFD. I’ve been turning it into absolute pressure using this formula: https://en.wikipedia.org/wiki/Pressure_coefficient#Definition
In SpaceClaim, the normals are pointing away from the surfaces of the wing, so it seems that pressure on the bottom surface would need to be turned negative, and on the top would need to stay positive, if I’m understanding you correctly?
You are navigating away from the AIS Discovery experience