Trobm wall or Solar wall categorized as a passive solar thermal mehtods for construction heating. In this manuscript the air flow inside the Trombe wall is simulated by Finite Volume Method. The commercial CFD code Ansys Fluent was used for Simulations. First, a refrence model is introduced and the results are represented. Then ,using the refrence model, the effective parameters on Trombe wall performance are studied. For studying the parameters, 32 diffrent model are simulated and their results are compered.