Post-processing the velocity field from interFoam solver
 

Hello All,

I am new to OpenFOAM programming. The attached screenshot is the post-processing on the velocity field that I want to do, which includes the gradient and Laplacian of the velocity field, and the dot product. I want to take advantage of the built-in discretization schemes and functions inside OpenFOAM. I am wondering where should I start. If anyone could share an example of this type of application, that would be great!

Thanks and best regards,
Min