Finding Nusselt and Grashof number
 

Hi all,

I am quite new in OpenFOAM. I am studying a problem of natural convection, the fluid (air) is flowing in a channel where only one wall is heated. I am using the buoyantBoussinesqPimpleFoam solver.

I am interested to calculate how the Nusselt number value varies along the channel and also to calculate an average Nusselt number for the whole channel to evaluate and compare its performance with other channels I need to study later. Furthermore I would like to know how I can calculate the Grashof number along this channel.

Thank you for the help!

Anyone who could help?