Computing Pressure Statistics with PostProcessors

[jmctighe]

Dear OpenLB Community,

I am trying to write a postprocessor to compute pressure statistics. I would like to start by computing the time-average field pressure, but I eventually want to try to obtain the pressure probability distribution over several 2D planes in a 3D flow. The statistics computations are straight forward (at least for the time-averaging), but I am unsure of how I to obtain the pressure field. What is the best way to operate on pressure data within a postprocessor?

Best Regards,
jmctighe

[FBukreev]

Hello,

to obtain pressure you need to compute denisty with computeRho() and then make (density – 1)/descriptors::invCs2(). That will give you pressure in lattice units.

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