[Tom_T]

Dear all,


I am new to OpenFOAM and trying to simulate temperature inside a tube.
I need to have 3 different temperature 3 zones of the tube These zones are defined by the x coordinate.
Unfortunately this does not work. Under you can find my code and the error message.
I tried debugging by not including the if statement and just "field[faceI] = 473.15;" and it worked. The problem seems to lie in the if statement


has anyone used IF statements in coded BC before?
If yes could you link a example of code?


If not do you have a viable alternative of obtaining the same result?



"

defaultName
{
type codedFixedValue; //Befehl für die programmierbare Randbedingung
value uniform 473.15; //Standardwert der Temperatur, wenn die Bedingung des Codes nicht zutrifft (default value)
redirectType temperatureProfileInlet; //Name der programmierbaren Randbedingung (frei wählbar)

code //ab hier folgt die programmierbare Randbedingung
#{

const fvPatch& boundaryPatch = patch();
const vectorField& Cf = boundaryPatch.Cf();
//Definition der verwendeten Klasse; anders ausgedrückt: es wird definiert, dass sich der Code auf ein boundaryPatch - nämlich das inlet Patch aus dem Blender Mesh - bezieht
//die Klasse besitzt die Funktion Cf (center of face), mit der der Mittelpunkt einer Fläche (in diesem Fall eines Elementes) wiedergegeben werden kann

scalarField& field = *this; //Definition des Temperaturfeldes als skalares Feld

forAll(Cf, faceI) //die folgenden Definitionen beziehen sich auf den Flächenmittelpunkt jedes Elementes
{


scalar x = Cf[faceI].x();
//jedem Flächenmittelpunkt eines Elementes wird ein Radius r zugewiesen - r=Wurzel(y²+z²)


//die Temperatur des Elementes wird nach der Funktion in Abhängigkeit des Radius berechnet



if (x< -0.0668397095133788 && x>-0.02338856745933){
field[faceI] = 473.15;
}
if (x< -0.02338856745933 && x>0.0195893161446997){
field[faceI] = 473.15;
}
if (x< 0.0195893161446997 && x>0.0628503014378741){
field[faceI] = 473.15;
}
else field[faceI] = 473.15;
"


error message


"Reading field T

Using dynamicCode for patch defaultName on field T at line 41 in "/media/sf_sharedwithvm/02_Ergebnisse_Statikmischer/Cooling_neue_Uebergaenge/PEHD/200_level/full_data_Stege_minus_2_K3/0/T.boundaryField.defaultName"
Creating new library in "dynamicCode/temperatureProfileInlet/platforms/linux64GccDPInt32Opt/lib/libtemperatureProfileInlet_a41a253919dfc6320afc8cc 705b1e735598fe626.so"
Invoking "wmake -s libso /media/sf_sharedwithvm/02_Ergebnisse_Statikmischer/Cooling_neue_Uebergaenge/PEHD/200_level/full_data_Stege_minus_2_K3/dynamicCode/temperatureProfileInlet"
wmakeLnInclude: linking include files to ./lnInclude
ln: failed to create symbolic link './fixedValueFvPatchFieldTemplate.C': Read-only file system
ln: failed to create symbolic link './fixedValueFvPatchFieldTemplate.H': Read-only file system
Making dependency list for source file fixedValueFvPatchFieldTemplate.C
/media/sf_sharedwithvm/02_Ergebnisse_Statikmischer/Cooling_neue_Uebergaenge/PEHD/200_level/full_data_Stege_minus_2_K3/0/T.boundaryField.defaultName: In member function ‘virtual void Foam::temperatureProfileInletFixedValueFvPatchScal arField::updateCoeffs()’:
/media/sf_sharedwithvm/02_Ergebnisse_Statikmischer/Cooling_neue_Uebergaenge/PEHD/200_level/full_data_Stege_minus_2_K3/0/T.boundaryField.defaultName:65:7: error: expected primary-expression before ‘/’ token
/opt/openfoam4/wmake/rules/General/transform:8: recipe for target 'Make/linux64GccDPInt32Opt/fixedValueFvPatchFieldTemplate.o' failed
make: *** [Make/linux64GccDPInt32Opt/fixedValueFvPatchFieldTemplate.o] Error 1


--> FOAM FATAL IO ERROR:
Failed wmake "dynamicCode/temperatureProfileInlet/platforms/linux64GccDPInt32Opt/lib/libtemperatureProfileInlet_a41a253919dfc6320afc8cc 705b1e735598fe626.so"


file: /media/sf_sharedwithvm/02_Ergebnisse_Statikmischer/Cooling_neue_Uebergaenge/PEHD/200_level/full_data_Stege_minus_2_K3/0/T.boundaryField.defaultName from line 41 to line 46.

From function void Foam::codedBase::createLibrary(Foam::dynamicCode&, const Foam::dynamicCodeContext&) const
in file db/dynamicLibrary/codedBase/codedBase.C at line 206.

FOAM exiting
"

[peyman.davvalo.khongar]

Moi,

There is something strange in your else syntax. Do you use this format?

 if (CONDITION)
        {
     CODE;
        }
 else if (CONDITION)
        {
     CODE;
        }
 else
        {
     CODE;
        }

The line number in your code is not specified. I can not see line 65 that give you the following error.

65:7: error: expected primary-expression before ‘/’ token

You can of course always go to this website:

https://github.com/OpenFOAM/OpenFOAM-dev

and search your key word to see how it is used in OpenFOAM codes. Your key word is else.


Moikka,

Peyman