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Old   May 7, 2019, 04:12
Default Swak4foam
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Farshad
Join Date: Sep 2010
Posts: 36
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Hi
I use swak4foam to calculate Nusselt number on a boundary:

Code:
functions
{
		{
		    type swakExpression;
		    ignore_unimplemented_simpleFunctionObject::movePoints    true;
		    valueType faceSet;
               outputControlMode   timeStep;
		    outputInterval    1;
		    writeStartTime	0;
		    fieldName k0;
		    verbose true;
		    autowrite false;
		    accumulations (average);
		    log true;
		}*/

    NusseltNumber
	    {
		type patchExpression;
		ignore_unimplemented_simpleFunctionObject::movePoints    true;
		outputControlMode   timeStep;
		outputInterval    1;
		patches
		(
			hot
			cold
		);
		verbose true;
		variables
		(
			"T0=293;"
			"L=1;"
			"Th=307;"
			"Tc=288;"
		);
		expression "snGrad(T)*L*((0.00000000000001*(pow(T,4)))+(0.00000000005*(pow(T,3)))-(0.00000008*(pow(T,2)))+(0.0001*T)-0.0006)/(((0.00000000000001*(pow(T0,4)))+(0.00000000005*(pow(T0,3)))-(0.00000008*(pow(T0,2)))+(0.0001*T0)-0.0006)*(Th-Tc))";
		accumulations
		(
			average
			max
			weightedAverage
		);*/
		log         true;
	    }
}
But as you see it just only report average, maximum and weighted average. How can I have Nusselt number for all cells along a patch?
Appreciated
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