How to extract data from a specific layer of the grids?

ripperjack · September 17, 2014, 23:37

Hi Foamers,

I have a really simple question. I ran a channel flow simulation with 128*100*128 grids in streamwise (x), vertical (y), and spanwise (z) direction. After the simulation, I would like to extract the temperature fields at a specific channel height, e.g., y=50. How can I do that? I know that "sample" utility can do a simple work, but interpolation is always needed. How can I just give a y index and extract the data from specific vertical layer of the grids? (I used non-uniform grids in vertical direction, so I dont want interpolation, I just want raw data from a specific grid layer). Many thanks!

Regards,
Ripperjack

jherb · October 29, 2014, 08:57

Did you find a solution for your problem? Perhaps these links help:
https://github.com/OpenFOAM/OpenFOAM...m/cuttingPlane
http://www.tfd.chalmers.se/~hani/kur...ionObjects.pdf

September 17, 2014, 23:37	How to extract data from a specific layer of the grids?	#1
ripperjack Member Jack Join Date: Dec 2011 Posts: 94 Rep Power: 14	Hi Foamers, I have a really simple question. I ran a channel flow simulation with 128100128 grids in streamwise (x), vertical (y), and spanwise (z) direction. After the simulation, I would like to extract the temperature fields at a specific channel height, e.g., y=50. How can I do that? I know that "sample" utility can do a simple work, but interpolation is always needed. How can I just give a y index and extract the data from specific vertical layer of the grids? (I used non-uniform grids in vertical direction, so I dont want interpolation, I just want raw data from a specific grid layer). Many thanks! Regards, Ripperjack reespanau likes this.

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October 29, 2014, 08:57		#2
jherb Senior Member Joachim Herb Join Date: Sep 2010 Posts: 650 Rep Power: 21	Did you find a solution for your problem? Perhaps these links help: https://github.com/OpenFOAM/OpenFOAM...m/cuttingPlane http://www.tfd.chalmers.se/~hani/kur...ionObjects.pdf