TY - JOUR

T1 - Natural convection between two compartments of a stairwell-numerical prediction and comparison with experiment

AU - Dehghan, M. R.Mokhtarzadeh

AU - Ergin, S.

AU - Reynolds, A. J.

PY - 1995/1/1

Y1 - 1995/1/1

N2 - This work describes the results of a numerical study of buoyancy-driven flow in a stairwell model. Direct comparisons with the experimental data have been presented. The model is based on the conservation equations of mass, momentum, and energy and the transport equations of turbulence energy and its rate of dissipation. Two different wall thermal boundary conditions, namely, temperature and heat flux, are used and the results are compared. In the case of the heat flux boundary condition, only the convective component of the heat flux at each wall has been used, by first calculating the radiative component and then separating it from the total heat flux. The numerical model predicts the overall features of the flow satisfactorily, and the details of the velocity and temperature field with reasonable accuracy.

AB - This work describes the results of a numerical study of buoyancy-driven flow in a stairwell model. Direct comparisons with the experimental data have been presented. The model is based on the conservation equations of mass, momentum, and energy and the transport equations of turbulence energy and its rate of dissipation. Two different wall thermal boundary conditions, namely, temperature and heat flux, are used and the results are compared. In the case of the heat flux boundary condition, only the convective component of the heat flux at each wall has been used, by first calculating the radiative component and then separating it from the total heat flux. The numerical model predicts the overall features of the flow satisfactorily, and the details of the velocity and temperature field with reasonable accuracy.

UR - http://www.scopus.com/inward/record.url?scp=0029230930&partnerID=8YFLogxK

U2 - 10.1080/10407789508913685

DO - 10.1080/10407789508913685

M3 - Article

AN - SCOPUS:0029230930

SN - 1040-7782

VL - 27

SP - 1

EP - 17

JO - Numerical Heat Transfer; Part A: Applications

JF - Numerical Heat Transfer; Part A: Applications

IS - 1

ER -