[pedera]

I am trying to use buoyantBoussinesqSimpleFoam to simulate natural convection around a cold pipe in a pool of water. The pipe is 273K and the surrounding walls of the pool are 293K, I therefore need to take into account density inversion of water in order to do this properly. Also, the transport properties of water vary strongly over the temperature range.

What I would like to do, is to define polynomials for rho, nu and Pr as a function of temperature T. According to the documentation of thermophysical models in OpenFOAM, this should be possible using the icoPolynomial and polynomialTransport models. I am however not able to find a proper documentation on the usage of these. The little I've been able to find involves using the thermophysicalModels file, but the buoyantBoussinesqSimpleFoam solver seems to ignore this file and instead look for a file called transportProperties with constant values for the transport properties.

Can anyone help me or point me in the right direction here?