FixedFluxPressure cannot find field 1%7cAU

anger · September 22, 2008, 09:08

Hello,

I'm stumbling across the same error.
I think that it has to do with a missing volScalarField, but I have no idea how to register this field in the objectRegistry.
Anybody knows what to do to get the fixedFluxPressure boundary condition running with (simple)Foam?

Best regards,
-Thomas

deepsterblue · September 22, 2008, 11:53

Declare a field called 'rUA' in createFields.H, like this:

volScalarField rUA
(
IOobject
(
"(1|A(U))",
runTime.timeName(),
mesh
),
mesh,
dimensionedScalar("rUA", dimTime, 1),
zeroGradientFvPatchScalarField::typeName
);

And call:

rUA = 1.0/UEqn.A();

inside the PISO loop.

anger · September 23, 2008, 05:15

Hello Sandeep,

thank you for your help, this works.
Just foor the books: a little typo occured in the last equation which should read

rUA = 1.0/UEqn().A()

I put this in pEqn.H

Best regards,
-Thomas

November 10, 2008, 06:50

hi to all

I want to simulate in straight pipe to include some
heat flow and to see temperature increasing...
which solver I should use...

can anyone help me

EMO

September 22, 2008, 09:08	Hello, I'm stumbling across	#1
anger Member Thomas Wolfanger Join Date: Mar 2009 Location: South West Germany Posts: 62 Rep Power: 17	Hello, I'm stumbling across the same error. I think that it has to do with a missing volScalarField, but I have no idea how to register this field in the objectRegistry. Anybody knows what to do to get the fixedFluxPressure boundary condition running with (simple)Foam? Best regards, -Thomas

September 22, 2008, 11:53	Declare a field called 'rUA' i	#2
deepsterblue Senior Member Sandeep Menon Join Date: Mar 2009 Location: Amherst, MA Posts: 403 Rep Power: 25	Declare a field called 'rUA' in createFields.H, like this: volScalarField rUA ( IOobject ( "(1\|A(U))", runTime.timeName(), mesh ), mesh, dimensionedScalar("rUA", dimTime, 1), zeroGradientFvPatchScalarField::typeName ); And call: rUA = 1.0/UEqn.A(); inside the PISO loop. __________________ Sandeep Menon University of Massachusetts Amherst https://github.com/smenon

September 23, 2008, 05:15	Hello Sandeep, thank you fo	#3
anger Member Thomas Wolfanger Join Date: Mar 2009 Location: South West Germany Posts: 62 Rep Power: 17	Hello Sandeep, thank you for your help, this works. Just foor the books: a little typo occured in the last equation which should read rUA = 1.0/UEqn().A() I put this in pEqn.H Best regards, -Thomas

November 10, 2008, 06:50	hi to all I want to simulat	#4
emilianyassenov Guest Posts: n/a	hi to all I want to simulate in straight pipe to include some heat flow and to see temperature increasing... which solver I should use... can anyone help me EMO

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