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
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
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