Kevin Ulmer asked 4 years ago
What does this error mean when running an analysis? Fails to create any polars.
1 Answers
techwinder Staff answered 4 years ago
It means that the inviscid analysis fails to interpolate the viscous properties. So either the foil viscous properties have not been created prior to the plane analysis, or the plane analysis produces a local lift coefficient or a local apparent angle of attack greater than the local stall value.
The detailed explanations:
http://www.xflr5.tech/docs/Point_Out_Of_Flight_Envelope.pdf
https://youtu.be/_8thw2CQCaI
A simple fix is to select an inviscid analysis when defining the polar.
André