scholarly journals Hydro-Magnetic Mixed Convection Flow in a Lid-Driven Cavity with Wavy Bottom Surface

2015 ◽  
Vol 3 (1) ◽  
pp. 8 ◽  
Author(s):  
Litan Kumar Saha
Keyword(s):  
Mixed Convection ◽  
Bottom Surface ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Driven Cavity

Study of mixed convection flow of power‐law fluids in a skewed lid‐driven cavity

Heat Transfer ◽  
2021 ◽  
Author(s):  
Sharaban Thohura ◽  
Md. Mamun Molla ◽  
M. M. Alam Sarker ◽  
Manosh C. Paul
Keyword(s):  
Mixed Convection ◽  
Power Law ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Driven Cavity ◽  
Power Law Fluids

Instability and Heat Transfer in Mixed Convection Flow in a Horizontal Duct With Discrete Heat Sources

2001 ◽  
Author(s):  
Qinghua Wang ◽  
Yogesh Jaluria
Keyword(s):  
Mixed Convection ◽  
Three Dimensional ◽  
Reynolds Numbers ◽  
Forced Flow ◽  
Bottom Surface ◽  
Convection Flow ◽  
Heat Sources ◽  
Mixed Convection Flow ◽  
Mean Velocity ◽  
Low Reynolds Numbers

Abstract Three dimensional mixed convection flow in a horizontal rectangular duct at low Reynolds numbers 5 ≤ Re ≤ 100 has been investigated numerically. Multiple strip heat sources are flushed-mounted on the bottom surface, modeling IC chips on PCBs. Two different flow patterns were observed. For Re ≥ 20, and Gr ≤ 1.5 × 104, only steady longitudinal rolls appear in the channel. The discontinuous deployment of heat sources on the bottom makes the longitudinal rolls expand and shrink periodically. The unsteady flow consists of steady longitudinal rolls near the side walls and traveling transverse rolls at the core region of the channel. The traveling velocity of the transverse rolls was found to be equal to the mean velocity of the forced flow. The implications of these observations to the cooling of electronic equipment are discussed.

A Numerical Investigation of Laminar Mixed Convection Flow and Heat Transfer in a Lid Driven Cavity with Two Cylinders

2015 ◽  
Vol 789-790 ◽  
pp. 282-286 ◽  
Author(s):  
Khalil Khanafer ◽  
M. El Haj Assad
Keyword(s):  
Heat Transfer ◽  
Nusselt Number ◽  
Mixed Convection ◽  
Richardson Number ◽  
Average Nusselt Number ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Driven Cavity ◽  
Flow And Heat Transfer ◽  
The Impact

Mixed convection flow and heat transfer characteristics in a lid-driven cavity with two isothermally heated circular cylinders inside are studied numerically using a finite element formulation based on the Galerkin method of weighted residuals. The top lid of the cavity is moving rightwards with a constant speed. The two cylinders are maintained at an isothermal hot temperature, while the walls of the cavity are maintained at a cold temperature. Comparisons of streamlines, isotherms and average Nusselt number are presented to show the impact of the Richardson number, non-dimensional radius of the cylinder, and the location of the cylinders on the transport phenomena within the cavity. The results of this investigation show that the presence of the cylinders results in an increase in the average Nusselt number compared with a case with no cylinder. The average Nusselt number increases with an increase in the Richardson number for all non-dimensional radius of the cylinder studied in this work. It is seen that changing the boundary condition on one of the cylinders from isothermal to adiabatic has minimal effect on the average Nusselt number around the walls of the cavity.

Numerical study of mixed convection flow in a lid-driven cavity with sinusoidal heating on sidewalls using nanofluid

2012 ◽  
Vol 51 (6) ◽  
pp. 893-911 ◽  
Author(s):  
A.A. Abbasian Arani ◽  
S. Mazrouei Sebdani ◽  
M. Mahmoodi ◽  
A. Ardeshiri ◽  
M. Aliakbari
Keyword(s):  
Mixed Convection ◽  
Numerical Study ◽  
Convection Flow ◽  
Mixed Convection Flow ◽  
Driven Cavity
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