[BakedAlmonds]

Hi,

I would like to know how to get the data at a specific location in paraView if that is possible.

For an example, lets use the cavity tutorial with a slight change in the dimensions:
vertices
(
(0 0 0)
(1 0 0)
(1 1 0)
(0 1 0)
(0 0 1)
(1 0 1)
(1 1 1)
(0 1 1)
);

Then after blockMesh > icoFoam> paraFoam, the results will be out. But say I want to get the velocity result at point (0.5 0.5 0.5), is it possible and how? I am interest in the magnitude and direction of the velocity at this point.

I am new to OpenFOAM and would really appreciate any help provided!
Thanks in advance!!! =)

[Gubevens]

Hi,

i can show you how i got temperature at specific points of my simulations out:

post this (its called function object) at the end of your ControlDict file



functions
{

probes
{
type probes;
functionObjectLibs ("libsampling.so");
enabled true;
outputControl timeStep;
outputInterval 1;

fields
(
T
);

probeLocations
(
(-0.5 -3 0.75)
(-0.5 -3 2.95)
(-2 -3 0.75)
(-2 -3 2.95)
);

}

}


then run the Solver. During the Simulation a folder will be created with a textdocument. (path is CASE/postprocessing/probes) There you find the values of the wished parameter for each timestep

You can plot these with gnuplot for example to see how the values changes and reach a value during the simulation for convergence view.

I hope thats what you are searching for

best regards

[BakedAlmonds]

thank you for the reply!!! it works!!!
Really appreciate it!!

[BakedAlmonds]

Hi Gabevens,

Hope you can help me on another issue. I want to get the velocity factor out at specific points where I used the example you showed. Is there anyway to get a scalar velocity data instead of a vector data?

[Gubevens]

Hi,

well look at this: http://cfd.direct/openfoam/user-guide/function-objects/
there is a object "calcMag" maybe this one could help

best regards

[BakedAlmonds]

Thanks again for the fast response. I will try it out.