Frost formation
 

Hi, my problem this is frost formation. I wont to simulate frost formation on cold surface. The inlet parameter are... moist air RH%, velocity, temperature (the problem it's, how can I consider the moist air , like teh mixture or eulerian model???). The frost structure is very porious therefore I would like to ask if it is possible to shape the forst structure like porious media with variable porosity.

natural frost formtion in free convection over cold flat plate
 

my problem this is frost formation. I wont to simulate frost formation on cold surface. The inlet parameter are... moist air RH%, velocity, temperature (the problem it's, how can I consider the moist air , like teh mixture or eulerian model???). The frost structure is very porious therefore I would like to ask if it is possible to shape the forst structure like porious media with variable porosity.