Update FOAM objects after new solver run

peterTr · May 10, 2017, 16:17

Hello everyone.

I'm writing a program, in which I do some calculations, get set of coordinates. I create a mesh and run a solver via system calls; then I load this data in Foam objects, preform calculations with new data, and repeat these steps in a loop.

Initializing objects for the first time seems OK, but I'm not sure, how should I re-load new data into them. I use the following Foam objects:
argList
Time
fvMesh
meshSearch
volFields

I wrapped them in a class and just create a new instance every step, but I get incorrect results when reading volFields, though data files are correct (I checked this with paraview). So how should I re-initialize these objects? I found that some of them have sort of "update" functions, but it's not clear if I should use them or do something else.

Thanks in advance.

peterTr · May 11, 2017, 16:26

My problem seems to be solved. I replaced meshSearch::findNearestCell with meshSearch::findCell. It works slower, but gives right results. May be, I just misunderstood the meaning of these functions.

Though I still would like to know if I update objects properly, or there exists better way.

May 10, 2017, 16:17	Update FOAM objects after new solver run	#1
peterTr New Member Join Date: Apr 2017 Posts: 5 Rep Power: 9	Hello everyone. I'm writing a program, in which I do some calculations, get set of coordinates. I create a mesh and run a solver via system calls; then I load this data in Foam objects, preform calculations with new data, and repeat these steps in a loop. Initializing objects for the first time seems OK, but I'm not sure, how should I re-load new data into them. I use the following Foam objects: argList Time fvMesh meshSearch volFields I wrapped them in a class and just create a new instance every step, but I get incorrect results when reading volFields, though data files are correct (I checked this with paraview). So how should I re-initialize these objects? I found that some of them have sort of "update" functions, but it's not clear if I should use them or do something else. Thanks in advance.

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May 11, 2017, 16:26		#2
peterTr New Member Join Date: Apr 2017 Posts: 5 Rep Power: 9	My problem seems to be solved. I replaced meshSearch::findNearestCell with meshSearch::findCell. It works slower, but gives right results. May be, I just misunderstood the meaning of these functions. Though I still would like to know if I update objects properly, or there exists better way.