stream function from velocity vector map

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shadi Ansari
shadi Ansari 2017-10-20
回答： Arvind Narayanan 2017-11-6
I am wondering how stream function can be calculated from velocity vector map. I have a .VC7 which has velocity in 2 directions and the position of each velocity vector. What is the approach to calculate the stream function from stream lines plotted from "showvec" or "streamline" function? Thanks for your help in advance.
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Rik
Rik 2017-10-21
This sounds like a specific case of a multidimensional function fit. I would advise trying to convert your problem to the generic case and searching for a solution for that.

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Arvind Narayanan
Arvind Narayanan 2017-11-6
Hi,
There is no specific MATLAB function to calculate the stream function from the streamlines plotted. You can refer to online references to know the original PDEs that comprise the formulae for streamlines and stream functions and derive the relationship from there. This wiki page might be a good place to start: https://en.wikipedia.org/wiki/Stream_function

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