Time history of a variable at a point for calculating correlations?
 

Hi everyone, Is there any utility available to convert openfoam output data into files corresponding to each individual grid point which contain the time history of a flow variable at that point? What i want to do is calculate two point correlation functions between various grid points. Alternatively, is there maybe an easy way of doing this? Thanks,

Well the value of the cell N is always the (N+1)th value in the internalField. So you could always write a program/script that gets the Nth value from all the data files of that field.

If you're more a point-and-click person, have a look at the Temporal filters in paraview. If you view data in the spreadsheetview and export you get CSV-files which can be read by any spreadsheet-program. Of course you don't want to do that for all the cells of the mesh
(But I don't know how well this works for time-series, you'll have to try for yourself)

Bernhard