Public Project: NormalSinoNasal03 – https://www.simscale.com/projects/mdunha/normalsinonasal03/

This is a prototype for an aerodynamic study of the nasal cavities and paranasal sinuses. The model was constructed from a CT scan dataset.

The native model has dimensions in cm. I use a 0.01 geometry scale factor. The volumetric flows under normal physiologic conditions are specified in ml/s. In this case 180, 560 and 1100 ml/s (cm^3/s). I convert the ml/s to m/s when specifying the inlet volumetric flow by multiplying by 1e-6.

The expected changes in the velocity fields with increased flow rates do not seem to appear. Am I missing something in the unit conversion? Does SimScale perform any conversion on the flow parameters based on the geometry scale factor?

The screenshots depict fully developed flows at 180 and 1100 ml per second.Paraview%20Screenshot%20Normal%20180%20mlpers|690x345

Thanks.

Michael