EigenVectors and volSymmTensorField
 

Hi, I am an OpenFOAM newbie using v1.6. I am modifying a solver I found on this forum and have a particular question, regarding the following code snippet.

volSymmTensorField A2
(
IOobject
(
"A2",
runTime.timeName(),
mesh,
IOobject::MUST_READ,
IOobject::AUTO_WRITE
),
mesh
);

//
// Investigate why I cant say just eigenVectors(A2) later.
//
volTensorField eigenVectorsA2
(
IOobject
(
"eigenVectorsA2",
runTime.timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
// eigenVectors(A2)
eigenVectors(A2 & UnitTensor)
);

Where UnitTensor is (1 0 0 0 1 0 0 0 1). I have the following observations:

1. When I try to define the eigenVectors without "multiplying" by the UnitTensor ( as eigenVectors(A2) ), I get an error while compiling.
2. If I specify my A2 as volTensorField instead of volSymmTensorField, then I don't have the problem while compiling, even when I don't multiply by the UnitTensor.

What is going on? I'll be happy to furnish compiler errors, if required.

Sachin