Unwrap the cylindrical surface to a plane
 

Hi guys:

does anyone have any idea on how to unwrap the cylindrical surface into a flat surface in CFX post? I have plotted the velocity contour on the cylindrical surface and would like to unwrap it into a rectangular plane!
thanks :confused:

Here are the steps:
1) Generate the cylindrical surface in CFD-Post
2) File/Export, use the cylinder as the object locator and export it to some file you can read
3) Use Tecplot, Paraview, python, matlab or some other post processing tool to work on the exported data.

Glenn,
I exported all the x,y,z and velocity data to excel and tried to plot in MATLAB but I got quite obscured plot. So I want to use tecplot: can you explain step by step how you do this in tecplot? Thanks a lot.

This is a simple thing to do and simply moving to another software will not fix it. If you already have the data in matlab then make it work in matlab. What do you mean by "obscured plot"?

You will probably have to define a function so your cylindrical surface is mapped to a surface. This means calculating the theta angle on the cylinder and then plotting the points as z height versus theta.