NACA Airfoil 0012 CFD Trouble

Hi yall,

I’m setting up aerodynamics simulation in SimScale for a NACA 0012 airfoil and I’m stuck on a setup error.

Current setup:

  • Simulation type: Incompressible external flow
  • Geometry consists of:
    • Part 1 = NACA 0012 airfoil
    • Flow region = external flow volume created using the External Flow Volume tool
  • Air material is assigned only to the Flow region.
  • Velocity inlet is assigned to the front face of the flow region.
  • Pressure outlet is assigned to the back face of the flow region.
  • Force and moment coefficients are assigned to the airfoil faces.
  • Cell zone is assigned to the Flow region.

Problem:

When I try to start the simulation, I get the following error:

“Please ensure that all CAD entities are assigned a material or advanced concept. Missing material or advanced concepts were detected for the following entities: Part 1.”

I previously had a cell zone error, but assigning the Flow region to the cell zone fixed that.

What I’m unsure about:

Since this is an external CFD simulation, I thought Part 1 (the airfoil) should remain a solid obstacle and only the Flow region should receive the Air material.

Should Part 1 also be assigned a material, or is there another step I’m missing?

I’ve attached screenshots of the geometry, material assignment, and the error message.

Any help would be greatly appreciated. Thanks!