[ahmadbakri]

hi all,


I am simulating friction stir welding process, when we set a convection thermal conditions for the walls of some material, does the STAR CCM consider that there is a heat transfer (by convection) between that material and Air for example. Or do we need to put another material to have a heat transfer with.
i.e. when we select a convection for thermal condition, is it enough? or do we need to set a medium (another material like Air) close to that material to have heat transfer with ?

thanks