Convective heat and mass transfer affected by aspect ratios for physical vapor transport crystal growth in two dimensional rectangular enclosures

Geug Tae  Kim (김극태); Moo Hyun Kwon (권무현)

doi:10.6111/JKCGCT.2018.28.1.063

Convective heat and mass transfer affected by aspect ratios for physical vapor transport crystal growth in two dimensional rectangular enclosures

Journal of the Korean Crystal Growth and Crystal Technology
Abbr : J. Korean Cryst. Growth Cryst. Technol.
2018, 28(2), pp.63-68
DOI : 10.6111/JKCGCT.2018.28.1.063
Publisher : The Korea Association Of Crystal Growth, Inc.
Research Area : Engineering > Materials Science and Engineering
Published : April 30, 2018

Geug Tae Kim ¹, Moo Hyun Kwon ²

¹한남대학교
²우석대학교

Accredited

ABSTRACT

Natural convection of a two dimensional laminar steady-state incompressible fluid flow in a rectangular enclosure has been investigated numerically for low aspect ratios with the physical vapor transport crystal growth. Results show that for aspect ratio (Ar = L/H) range of 0.1 ≤ Ar ≤ 1.5, with the increase in Grashof number by one order of magnitude, the total mass flux is much augmented, and is exponentially decayed with the aspect ratio. Velocity and temperature profiles are presented at the mid-width of the rectangular enclosure. It is found that the effect of Grashof number on mass transfer is less significant when the enclosure is shallow (Ar = 0.1) and the influence of aspect ratio is stranger when the enclosure is tall and the Grashof number is high. Therefore, the convective phenomena are greatly affected by the variation of aspect ratios.

KEYWORDS

Aspect ratio, Convection

Citation status

* References for papers published after 2023 are currently being built.

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Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Convective heat and mass transfer affected by aspect ratios for physical vapor transport crystal growth in two dimensional rectangular enclosures

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Citation status

* References for papers published after 2023 are currently being built.

Journal of the Korean Crystal Growth and Crystal Technology 2023 KCI Impact Factor : 0.19

Convective heat and mass transfer affected by aspect ratios for physical vapor transport crystal growth in two dimensional rectangular enclosures

ABSTRACT

KEYWORDS

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