CFD simulation of indoor climate

Abstract

The paper presents the experience acquired by the CFD (Computational Fluid Dynamics) simulation of indoor climate in a room heated by a gas space heater. The vertical air temperature difference in room is one of the indoor climate parameters. The simulation presents the non-stationary airflow and the distribution of temperatures in a dwelling room. The main goal of the paper is to identify factors which make a great vertical air temperature difference. Especially in a room which is heated up with high temperature of air. The paper compares results of CFD simulation with the measuring of temperatures and velocities in this room.
The results can be considered trustworthy only if proper models of turbulence and radiation are used. The next goal is finding out appropriate turbulence and radiation models which could describe both heat transfer mechanisms in the room.
The simulation is solved in the computer program FLUENT.