[Paraview] How to output forces over time?

[HongchaoWang]

Hi,

 

I am using paraview to postprocess the results from OpenFoam. I am able to
calculate the drag and lift forces on a fixed box by integrating pressure
over the box surface. Now I would like to output the time history of the of
the forces. How can I achieve that? What I have done is to select the row of
forces generated in the spread sheet view and then use "File->save data->
Write All Time Steps" . However, the output file only give me the results of
p, U, normals, etc. without the forces I want. 

 

Does anyone know the solution to this problem?

 

Many thanks,

Wilson

 

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