Regarding surface tracking in OpenFOAM
hello friends,
I want track inter phase in OpenFOAM means I want find out how the alpha(phase fraction) changes at interphase between two fluids . How should I do this???? Please help me Regards Harshawardhan Kulkarni |
If you use paraview for post-processing you can very easily just plot the alpha1 field and find out where the boundary between 0 and 1 is.
If you want to just track alpha1=0.5 for example you could also sample it. |
Quote:
thanks for quick reply.... Can you tell me....... I have to used "plot data "or "Plot over line" in a filter in paraview........And if I used "plot data" and plot generated after that how I can extract that data in a column wise manner so that we can use the information for further processing . |
Greetings to all!
@Harshawardhan: Quote:
Best regards, Bruno |
1 Attachment(s)
Quote:
hello here I'm attaching the Image, I want track the interface. I have captured that image at 25th sec. at that time I want to find out all the coordinate at interface separating two fluid. Red: oil blue : air and there is line or curve (white) separating them means want to fine out coordinates of all the alpha (0<alpha<1) reply asap Regards Harshawardhan |
First of all: you have a value of alpha1 large than 1 in your domain. This is obviously unphysical so I suggest you look into the 'limit' you use for your contact angle BC (i recommend limit gradient)
Second I think you it would help you a lot to look into the documentation of Paraview a bit to figure out yourself what you can do. |
why alpha value exceeds 1
Hello everyone,
I am solving a multiphase case using interfoam. but during solving my alpha value exceeds 1 . how should i limit alpha value within 0 to 1 interval . what is the exact reason of it to increase beyond 1 or decrease beyond 0 .?? plz Help |
Quote:
Use Rescale to Data range the path is Display-> (in front) of color by at initially before the play for alpha |
All times are GMT -4. The time now is 13:05. |