[saicharan662000@gmail.com]

hello guys,
I am trying to develop my own solver using compressibleInterFoam. I modified the solver and compiled it. I got the following error.
undefined reference to `Foam::twoPhaseMixtureThermo::twoPhaseMixtureTherm o(Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::word const&)'
/usr/bin/ld.bfd: myCompressibleInterFoam.C.text.startup+0x2fcf): undefined reference to `Foam::twoPhaseMixtureThermo::twoPhaseMixtureTherm o(Foam::GeometricField<Foam::Vector<double>, Foam::fvPatchField, Foam::volMesh> const&, Foam::GeometricField<double, Foam::fvsPatchField, Foam::surfaceMesh> const&, Foam::word const&)'
collect2: error: ld returned 1 exit status




Can anyone help me with this?
Thanks in advance

[LuckyTran]

You made a call to something that doesn't exist in the namespace hierarchy (hence the undefined reference). The thingy you tried to call is printed there exactly for you.

No idea what you modified but it could be something as simple as forgetting to link the libraries for the function that you are trying to call. This could easily happen if you just copy some lines from another solver and forget to link them (the .so shared object).

[saicharan662000@gmail.com]

Hello lucky,
I declared a variable mDot as a member Function in twoPhaseMixtureThermo.H . Later I used it in twoPhaseMixtureThermo.C and later used it in PEqn.H. I compiled the twoPhaseMixtureThermo library. It has no error. But when I compiled the solver I got the above error.


My options folder is like this.
EXE_INC = \
-I. \
-ItwoPhaseMixtureThermo/lnInclude \
-IVoFphaseCompressibleMomentumTransportModels/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
-I$(LIB_SRC)/twoPhaseModels/twoPhaseMixture/lnInclude \
-I$(LIB_SRC)/twoPhaseModels/interfaceProperties/lnInclude \
-I$(LIB_SRC)/MomentumTransportModels/momentumTransportModels/lnInclude \
-I$(LIB_SRC)/MomentumTransportModels/compressible/lnInclude \
-I$(LIB_SRC)/MomentumTransportModels/phaseCompressible/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude \
-I$(LIB_SRC)/dynamicMesh/lnInclude \
-I$(LIB_SRC)/dynamicFvMesh/lnInclude \
-I$(LIB_SRC)/finiteVolume/lnInclude

EXE_LIBS = \
-ltwoPhaseMixtureThermo \
-ltwoPhaseSurfaceTension \
-lfluidThermophysicalModels \
-lspecie \
-ltwoPhaseMixture \
-ltwoPhaseProperties \
-linterfaceProperties \
-lmomentumTransportModels \
-lfluidThermoMomentumTransportModels \
-lVoFphaseCompressibleMomentumTransportModels \
-lfiniteVolume \
-lfvOptions \
-lmeshTools \
-ldynamicMesh \
-ldynamicFvMesh


twoPhaseMixtureThermo is already in solver so I think there is no Need to link it again. I just modified it to calculate mDot

[roshan6890]

Hi Saicharan,
Did you manage to resolve your problem? If yes, could you please share how you did it?

[lisapurnellsw]

Originally Posted by saicharan662000@gmail.com

Hello lucky,
I declared a variable mDot as a member Function in twoPhaseMixtureThermo.H . Later I used it in twoPhaseMixtureThermo.C and later used it in PEqn.H. I compiled the twoPhaseMixtureThermo library. It has no error. But when I compiled the solver I got the above error.


My options folder is like this.
EXE_INC = \
-I. \
-ItwoPhaseMixtureThermo/lnInclude \
-IVoFphaseCompressibleMomentumTransportModels/lnInclude \
-I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
-I$(LIB_SRC)/twoPhaseModels/twoPhaseMixture/lnInclude \
-I$(LIB_SRC)/twoPhaseModels/interfaceProperties/lnInclude \
-I$(LIB_SRC)/MomentumTransportModels/momentumTransportModels/lnInclude \
-I$(LIB_SRC)/MomentumTransportModels/compressible/lnInclude \
-I$(LIB_SRC)/MomentumTransportModels/phaseCompressible/lnInclude \
-I$(LIB_SRC)/meshTools/lnInclude \
-I$(LIB_SRC)/dynamicMesh/lnInclude \2048
-I$(LIB_SRC)/dynamicFvMesh/lnInclude \
-I$(LIB_SRC)/finiteVolume/lnInclude

EXE_LIBS = \
-ltwoPhaseMixtureThermo \
-ltwoPhaseSurfaceTension \
-lfluidThermophysicalModels \
-lspecie \
-ltwoPhaseMixture \
-ltwoPhaseProperties \
-linterfaceProperties \
-lmomentumTransportModels \
-lfluidThermoMomentumTransportModels \
-lVoFphaseCompressibleMomentumTransportModels \
-lfiniteVolume \
-lfvOptions \
-lmeshTools \
-ldynamicMesh \
-ldynamicFvMesh


twoPhaseMixtureThermo is already in solver so I think there is no Need to link it again. I just modified it to calculate mDot

The error you're encountering, "undefined reference," typically indicates that the linker is unable to find the implementation of a particular function or method. In this case, it's pointing to an undefined reference for twoPhaseMixtureThermo from the twoPhaseMixtureThermo class in the Foam namespace.