[swak4Foam] how to write swakExpression

harsha_kulkarni · June 7, 2017, 00:48

Hello Friends
I want to calculate mass transfer coefficient using swak4foam utility

formula for MTC is given by " (wallShearStress/U*896)*0.227"

value needed at the cell center

how to write using swakexpression using function object

harsha_kulkarni · June 7, 2017, 06:05

MTC
{
type swakExpression;
expression "(wallShearStress/U*896)*0.227";
accumulations (sum);
valueType cellZone;
zoneName faceZone;
outputControlMode outputTime;

}

this is th function object I had used for calculating Mass Transfer Coefficient

after that I am getting error

[swak4Foam: Setting default mesh
[0]
[0]
[0] --> FOAM FATAL ERROR:
[0] The cellZone faceZone was not found in 0()
[0]
[0]
[0] From function getCellZoneID(const fvMesh &mesh,const word &name)
[0] in file CellZoneValueExpressionDriver.C at line 63.
[0]
FOAM parallel run exiting]

June 7, 2017, 00:48	how to write swakExpression	#1
harsha_kulkarni Senior Member harshawardhank Join Date: Mar 2014 Posts: 209 Rep Power: 13	Hello Friends I want to calculate mass transfer coefficient using swak4foam utility formula for MTC is given by " (wallShearStress/U896)0.227" value needed at the cell center how to write using swakexpression using function object Last edited by harsha_kulkarni; June 7, 2017 at 06:03. Reason: New error

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June 7, 2017, 06:05		#2
harsha_kulkarni Senior Member harshawardhank Join Date: Mar 2014 Posts: 209 Rep Power: 13	MTC { type swakExpression; expression "(wallShearStress/U896)0.227"; accumulations (sum); valueType cellZone; zoneName faceZone; outputControlMode outputTime; } this is th function object I had used for calculating Mass Transfer Coefficient after that I am getting error [swak4Foam: Setting default mesh [0] [0] [0] --> FOAM FATAL ERROR: [0] The cellZone faceZone was not found in 0() [0] [0] [0] From function getCellZoneID(const fvMesh &mesh,const word &name) [0] in file CellZoneValueExpressionDriver.C at line 63. [0] FOAM parallel run exiting]