Heat and mass transfer characteristics of double‐diffusive natural convection in a porous annulus: A higher‐order compact approach: Fid-Bau Portal

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Heat and mass transfer characteristics of double‐diffusive natural convection in a porous annulus: A higher‐order compact approach

Dutta, Sailen / Kalita, Jiten C.

In this paper, we apply a reconstructed higher‐order compact scheme on nonuniform grids to the problem of double‐diffusive natural convection in a vertical porous annulus. The Darcy model is adopted for the fluid flow coupled with energy and mass equations. Computations are carried out in the regime $1 \leq A \leq 10$ , $1 \leq κ \leq 50$ , $1 \leq L e \leq 200$ , $- 40 \leq N \leq 40$ , and $20 \leq R a \leq 2000$ , where $A$ is the aspect ratio, $κ$ is the radius ratio, $L e$ is the Lewis number, $N$ is the buoyancy ratio, and $R a$ is the thermal Rayleigh number. Extensive computations are carried out to investigate the influence of these parameters on the flow and a general pattern of heat and mass transfer characteristics emerges from the study. Particular attention has been paid to the transient flow behavior while investigating the influence of $κ$ on the $N = - 2$ buoyancy ratio configuration.

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Heat and mass transfer characteristics of double‐diffusive natural convection in a porous annulus: A higher‐order compact approach

Dutta, Sailen / Kalita, Jiten C.

In this paper, we apply a reconstructed higher‐order compact scheme on nonuniform grids to the problem of double‐diffusive natural convection in a vertical porous annulus. The Darcy model is adopted for the fluid flow coupled with energy and mass equations. Computations are carried out in the regime $1 \leq A \leq 10$ , $1 \leq κ \leq 50$ , $1 \leq L e \leq 200$ , $- 40 \leq N \leq 40$ , and $20 \leq R a \leq 2000$ , where $A$ is the aspect ratio, $κ$ is the radius ratio, $L e$ is the Lewis number, $N$ is the buoyancy ratio, and $R a$ is the thermal Rayleigh number. Extensive computations are carried out to investigate the influence of these parameters on the flow and a general pattern of heat and mass transfer characteristics emerges from the study. Particular attention has been paid to the transient flow behavior while investigating the influence of $κ$ on the $N = - 2$ buoyancy ratio configuration.

Heat and mass transfer characteristics of double‐diffusive natural convection in a porous annulus: A higher‐order compact approach

Dutta, Sailen / Kalita, Jiten C.

In this paper, we apply a reconstructed higher‐order compact scheme on nonuniform grids to the problem of double‐diffusive natural convection in a vertical porous annulus. The Darcy model is adopted for the fluid flow coupled with energy and mass equations. Computations are carried out in the regime $1 \leq A \leq 10$ , $1 \leq κ \leq 50$ , $1 \leq L e \leq 200$ , $- 40 \leq N \leq 40$ , and $20 \leq R a \leq 2000$ , where $A$ is the aspect ratio, $κ$ is the radius ratio, $L e$ is the Lewis number, $N$ is the buoyancy ratio, and $R a$ is the thermal Rayleigh number. Extensive computations are carried out to investigate the influence of these parameters on the flow and a general pattern of heat and mass transfer characteristics emerges from the study. Particular attention has been paid to the transient flow behavior while investigating the influence of $κ$ on the $N = - 2$ buoyancy ratio configuration.

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Titel:

Heat and mass transfer characteristics of double‐diffusive natural convection in a porous annulus: A higher‐order compact approach

Beteiligte:

Dutta, Sailen (Autor:in) / Kalita, Jiten C. (Autor:in)

Erschienen in:

Heat Transfer ; 51 ; 140-169

Erscheinungsdatum:

01.01.2022

Format / Umfang:

30 pages

ISSN:

2688-4542 , 2688-4534

DOI:

https://doi.org/10.1002/htj.22300

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

numerical simulation , heat convection , porous media , mathematical modeling

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