Title of article :
Transient laminar opposing mixed convection in a differentially and asymmetrically heated vertical channel of finite length
Author/Authors :
L. Mart?nez-Su?stegui، نويسنده , , Luis C. Trevino، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Transient laminar mixed convection in an asymmetrically and differentially heated vertical channel of finite length subject to an opposing buoyancy is investigated by solving the unsteady two-dimensional Navier–Stokes and energy equations. Results illustrate the effects of buoyancy strength or Richardson number image and Reynolds number Re on the overall flow structure and the nondimensional heat flux (Nusselt number) from the heated surface. Final steady or oscillatory flow response is obtained depending on the value of the Reynolds and Richardson numbers. The critical value of the buoyancy strength between the two regimes strongly depends on the value of the Reynolds number.
Keywords :
Mixed convection , Opposed flows , Unsteady convective flows , Asymmetrical heating
Journal title :
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
Journal title :
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER