- **Main CFD Forum**
(*https://www.cfd-online.com/Forums/main/*)

- - **Determine the exact location of the vertex center?
**
(*https://www.cfd-online.com/Forums/main/11156-determine-exact-location-vertex-center.html*)

Determine the exact location of the vertex center?
Hello, everyone,
I am asking a question about data postprocessing. I get the results for the flow past a cyliner. But I don't know how to exactly locate the center of the vortex behind the cylinder and how to exactly get the separation angle. You help is most appreciated! Thanks a lots!!! |

Re: Determine the exact location of the vertex cen
Dear Anna,
I am not sure if the 'exact' location of votex center and the separation angle can be determined. However, from viewpoint of data processing, a reasonably good ide of these can be obtained. These can be obtained by plotting the streamlines for the flow. Hope this helps. Regards, Ganesh |

Re: Determine the exact location of the vertex cen
Hi !!
You can find the center of vortex from the stream-function data and recirculation (or wake) length from the velocity data. Separation angle: Separation angle can be determined by calculating the vorticity (or shear-stress) on the surface of the cylinder. The point at which the value is zero can be noted as the point of separation (or separation angle). Best regards.... Ramp |

Thank you! Ganesh and Ramp
Lots of thanks for your help. I will try to figure it out.
You are very helpful!! |

All times are GMT -4. The time now is 02:14. |