adjointShape..
 

Hi guys,
I'm analysing the solver adjointShapeOptimizationFoam and I have a simple (I think) but for me important question:

in line 154 of the file adjointShapeOptimizationFoam.C I find such a declaration:

volVectorField adjointTransposeConvection((fvc::grad(Ua) & U));

what I would like to know is the meaning of the expression between brackets; I have thought that it is a dot product between the matrix fvc::grad(Ua) and the vector U. It is right? A further question could be which is the phisical meaning of this vector which has just been defined.

Thanks in advance
Simone

I would like to know another thing..is there a site where I can find the meaning of all operations such patch().nf() or similar? Moreover, does anyone know which is the meaning of these expressions

operator ==
operator =

thanks
Simone

Anyone? :)