I'm using Solidworks 2010 premium edition (SP0) to simulate the flow in a externally pressurized air bearings. Temperature range is [200K 300K] while air thermal conductivity fluctuate between 0.0225 W/m/K and 0.5 W/m/K wich is not normal since 0.5 correspond to high temperature (>1000 K). After that, I created a new material (a copy past of air already existing) and I set the thermal conductivity to a constant value of 0.0225 W/m/K. Suprinsingly, the thermal conductivity of the new air keeps fluctuating !
Does anybody had this problem before?