View Issue Details
|ID||Project||Category||View Status||Date Submitted||Last Update|
|0001972||OpenFOAM||Bug||public||2016-01-14 17:50||2016-01-18 18:33|
|Summary||0001972: scalarTransport function object not usable with Eulerian multi-phase solvers|
|Description||Using the scalarTransport function object causes a fatal error, since OpenFOAM tries to look up the field U, which doesn't exist.|
|Steps To Reproduce||Here we see the constructor of scalarTransport:|
const word& name,
const objectRegistry& obr,
const dictionary& dict,
const bool loadFromFiles
dimensionedScalar("zero", dimless, 0.0),
T_ == dimensionedScalar("zero", dimless, 0.0);
We see from the initializer, that fields like UName_ are initialized with a default value ("U"). Only in the body of the constructor, the read() method is called, which looks up the proper names.
However, the method boundaryTypes() is called in the initializer list, when constructing the T_ field. Thus, at the time of the call to boundaryType(), UName_ still has its initial value "U".
Foam::wordList Foam::scalarTransport::boundaryTypes() const
const volVectorField& U = mesh_.lookupObject<volVectorField>(UName_);
/* code omitted */
This leads to problems, when trying to use this function object with say twoPhaseEulerFoam, since in this case there is no field named U.
|Additional Information||I propose to pass the proper name to the method boundaryTypes:|
// method signature
wordList boundaryTypes(word) const;
// the call in the constructor of the T_ field
// the method itself
Foam::wordList Foam::scalarTransport::boundaryTypes(word UName) const
const volVectorField& U = mesh_.lookupObject<volVectorField>(UName);
/* the rest is unchanged*/
|Tags||No tags attached.|
||Thanks for the bug-report and proposed fix. I think a simpler approach is to construct UName_ with dict.lookupOrDefault<word>("UName", "U") rather than pass it as an argument to boundaryTypes. I have just pushed this fix to OpenFOAM-dev, let me know if it resolves the problem you are having.|
You resolved the issue. Thanks.
I chose to pass the UName as an argument as I was not sure, whether I could access UName_ further down the initializer list.
Today I searched the web and it told me, that members are initialized in the order as they appear in the class' definition. So I was over cautious in passing UName as argument.
Resolved in OpenFOAM-dev by commit 465452b7b9e28fa1672b9e41d01c940d8ad262a6
Resolved in OpenFOAM-3.0.x by commit 5b548639bc6e08e3025dbfdfeb4549928b3485c5
|2016-01-14 17:50||projectionist||New Issue|
|2016-01-15 14:50||henry||Note Added: 0005835|
|2016-01-18 16:07||projectionist||Note Added: 0005852|
|2016-01-18 18:33||henry||Note Added: 0005853|
|2016-01-18 18:33||henry||Status||new => resolved|
|2016-01-18 18:33||henry||Resolution||open => fixed|
|2016-01-18 18:33||henry||Assigned To||=> henry|