Authors

Abstract

A numerical study of two-dimensional turbulent buoyant rcirculating flow within
mechanically ventilated rooms is reported. The study involves the solution of elliptic partial
differential equations for the conservation of mass, momentum, energy, turbulent energy and
its dissipation rate in a finite difference form. These equations were solved together with
algebraic expressions for the turbulent viscosity and heat diffusivity, using (K-ε) turbulence
model. A modified version of a two-dimensional elliptic computer code was used to
simulate the complex flows inside a slot-ventilated room. The present study demonstrates
that the flow behavior depends on several parameters, such as airflow rate, size and
temperature of the heated obstruction. Each of these parameters was modeled separately to
understand their affects on the airflow characteristic inside ventilated room.