Effect of adiabatic square ribs on natural convection in an asymmetrically heated channel

Abidi-Saad, Aissa; Kadja, Mahfoud; Popa, Cătălin; Polidori, Guillaume

doi:10.1007/s00231-016-1853-y

Cited by 14 publications

(2 citation statements)

References 35 publications

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“…In this study, it is assumed that the flow is laminar, two dimensional and steady. The fluid is assumed to be incompressible, Newtonian and fluid physical properties depend only on the temperature as stated in [15] and [18]. Natural convection is governed by the continuity (1), the momentum (2 and 3) and the energy (4) equations, as follows:…”

Section: Physical Modelmentioning

confidence: 99%

Free convection heat transfer in an inclined channel asymmetrically heated in laminar regime

Khoualdi¹,

Rouabah²,

Bouraoui³

et al. 2018

IJHT

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This paper deals with the numerical modeling of the open flow induced by natural convection within tilted asymmetrically heated channel with constant heat flux equal to 510 W/m2 and for a modified Rayleigh number Ra* =4.5×106. The slope of the channel can vary between 0° and 90°. The inclined channel is immerged in a tank filled with water, which represents the surrounding environment, in order to overcome the heat radiation effect and pressure conditions at the inlet and outlet of the channel. The conservation equations of mass, momentum and energy are solved using the finite volume method and the numerical simulations are performed using Ansys Fluent CFD software. The influence of the inclination of the channel on the thermal and dynamic behaviors of flow within the channel is analyzed. The results are plotted in term of local Nusselt number, streamlines, isotherms and axial velocity profiles as well.

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Section: Physical Modelmentioning

confidence: 99%

Free convection heat transfer in an inclined channel asymmetrically heated in laminar regime

Khoualdi¹,

Rouabah²,

Bouraoui³

et al. 2018

IJHT

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show abstract

“…In this study, it is assumed that the flow is laminar, two-dimensional and steady. The fluid is also assumed Newtonian, incompressible and the physical properties of the fluid depend only on the temperature as described in Abidi-Saad et al (2017) and Hemmer et al (2016). The simulations were conducted for a modified Rayleigh number (Ra * ) equal to 4.5×10 6 .…”

Section: Physical Modelmentioning

confidence: 99%

Numerical Simulation of a Double Skin With Secondary Ventilation Flow on Adiabatic Wall

Polidori¹,

Abidi-Saad²,

Bouraoui³

et al. 2017

Frontiers in Heat and Mass Transfer

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Study concerning a double skin flow with secondary ventilation was conducted numerically, in order to understand the basic mechanisms of the free convection in an open channel asymmetrically heated with uniform heat flux density (510 W/m 2 ). The vertical channel corresponds to a double skin façade, which was immersed in a tank filled with water. The tank corresponds to the environment which allows us to overcome pressure conditions at the inlet and the outlet of the channel. The use of water allows neglecting radiation effect. The mass conservation equations of momentum and energy are solved using the finite volume method and numerical simulations are performed using Ansys Fluent CFD software. Our interest, in this work, is the study of the influence of the position and the size of an opening in the adiabatic wall, which represents secondary ventilation, on the flow dynamics and the heat transfer.

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Effect of surface radiation on natural convection in an asymmetrically heated channel-chimney system

et al. 2017

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Effect of adiabatic square ribs on natural convection in an asymmetrically heated channel

Cited by 14 publications

References 35 publications

Free convection heat transfer in an inclined channel asymmetrically heated in laminar regime

Free convection heat transfer in an inclined channel asymmetrically heated in laminar regime

Numerical Simulation of a Double Skin With Secondary Ventilation Flow on Adiabatic Wall

Effect of surface radiation on natural convection in an asymmetrically heated channel-chimney system

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