[Josh]

Hi all -

I am calculating the momentum and displacement thicknesses along an airfoil polyline I created. I require the displacement thickness to calculate the momentum thickness. I am using the integral von Karman momentum equation, found here on page 2 (I will be solving for theta, the momentum thickness):
http://www.owlnet.rice.edu/~mech371/...t_integ_BL.pdf

I know how to export the wall shear, density, and velocity data along the polyline to an Excel file. However, I am unsure of how to properly integrate the displacement thickness at each point along the curve. I could create lines at various points along the curve, integrate along those lines to calculate the displacement thicknesses, and then use the integral von Karman momentum equation to find the momentum thicknesses corresponding to those points. However, that would be very time consuming, and would only give me select points rather than a smooth curve.

Alternatively, if there is an easier method of finding the momentum thickness in CFX, I'd love to hear it.

Any help is appreciated.