[my101]

Hello Foamers,

I am doing a simulation for heat transfer in a CPU cooler using laplacianFoam. I want to calculate the integral of a field (e.g. gradTz) over a boundary/patch.

In OF-2.1.1, patchIntegrate utility <patchIntegrate -latestTime gradTz EXCHANGE_SURFACE> gives the output:

Time = 240
Area vector of patch EXCHANGE_SURFACE[0] = (-1.10854e-17 1.18664e-19 0.0013702)
Area magnitude of patch EXCHANGE_SURFACE[0] = 0.0188973
Reading volScalarField gradTz
Integral of gradTz over vector area of patch EXCHANGE_SURFACE[0] = (1.0814e-08 -7.43949e-08 -0.00792159)
Integral of gradTz over area magnitude of patch EXCHANGE_SURFACE[0] = -2.36515
End


In OF-6, patchIntegrate utility is replaced by a postProcess function <postProcess -latestTime -func 'patchIntegrate(name=EXCHANGE_SURFACE,gradTz)'> which gives the following output:

surfaceFieldValue patchIntegrate(name=EXCHANGE_SURFACE,gradTz):
total faces = 52131
total area = 0.0188973
Time = 240
Reading fields:
volScalarFields: gradTz
Executing functionObjects
surfaceFieldValue patchIntegrate(name=EXCHANGE_SURFACE,gradTz) write:
areaIntegrate(EXCHANGE_SURFACE) of gradTz = -2.36514
End


My queries are:
1) How can I get integral-over-vector-area (xValue yValue zValue) along with the magnitude in OF-6 as it shows in OF-2.1.1?
2) Integral-over-area magnitude is not the magnitude of integral-over-vector-area vector. What is the relation b/w integral over vector area and integral over area magnitude?