Numerical simulations of transitional and turbulent natural convection in laterally heated cylindrical enclosures for crystal growth

Hooman Enayati; Abhilash J. Chandy; Minel J. Braun

doi:10.1080/10407782.2016.1230378

Numerical simulations of transitional and turbulent natural convection in laterally heated cylindrical enclosures for crystal growth

Hooman Enayati
, Abhilash J. Chandy
, Minel J. Braun

Division of Engineering, Business & Computing (Berks)

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The present numerical work, the first of its kind, aims at establishing the threshold parameters for dynamic similitude (based on the Rayleigh number (Ra)), for free convection in a cylindrical enclosure heated laterally. Ra considered in this study spanned a range between 750 and 8.8 × 10⁸, where the characteristic length, L, used in its definition is represented by the ratio of cylindrical enclosure’s volume to its lateral surface area. The commercial code, ANSYS FLUENT, is used to model a 2-D axisymmetric cylindrical geometry. When comparatively analyzed, the results allowed conclusions associating values of the Ra with flow development from laminar to turbulent.

Original language	English (US)
Pages (from-to)	1195-1212
Number of pages	18
Journal	Numerical Heat Transfer; Part A: Applications
Volume	70
Issue number	11
DOIs	https://doi.org/10.1080/10407782.2016.1230378
State	Published - Dec 1 2016

All Science Journal Classification (ASJC) codes

Numerical Analysis
Condensed Matter Physics

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10.1080/10407782.2016.1230378

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title = "Numerical simulations of transitional and turbulent natural convection in laterally heated cylindrical enclosures for crystal growth",

abstract = "The present numerical work, the first of its kind, aims at establishing the threshold parameters for dynamic similitude (based on the Rayleigh number (Ra)), for free convection in a cylindrical enclosure heated laterally. Ra considered in this study spanned a range between 750 and 8.8 × 108, where the characteristic length, L, used in its definition is represented by the ratio of cylindrical enclosure{\textquoteright}s volume to its lateral surface area. The commercial code, ANSYS FLUENT, is used to model a 2-D axisymmetric cylindrical geometry. When comparatively analyzed, the results allowed conclusions associating values of the Ra with flow development from laminar to turbulent.",

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AU - Enayati, Hooman

AU - Chandy, Abhilash J.

AU - Braun, Minel J.

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Y1 - 2016/12/1

N2 - The present numerical work, the first of its kind, aims at establishing the threshold parameters for dynamic similitude (based on the Rayleigh number (Ra)), for free convection in a cylindrical enclosure heated laterally. Ra considered in this study spanned a range between 750 and 8.8 × 108, where the characteristic length, L, used in its definition is represented by the ratio of cylindrical enclosure’s volume to its lateral surface area. The commercial code, ANSYS FLUENT, is used to model a 2-D axisymmetric cylindrical geometry. When comparatively analyzed, the results allowed conclusions associating values of the Ra with flow development from laminar to turbulent.

AB - The present numerical work, the first of its kind, aims at establishing the threshold parameters for dynamic similitude (based on the Rayleigh number (Ra)), for free convection in a cylindrical enclosure heated laterally. Ra considered in this study spanned a range between 750 and 8.8 × 108, where the characteristic length, L, used in its definition is represented by the ratio of cylindrical enclosure’s volume to its lateral surface area. The commercial code, ANSYS FLUENT, is used to model a 2-D axisymmetric cylindrical geometry. When comparatively analyzed, the results allowed conclusions associating values of the Ra with flow development from laminar to turbulent.

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Numerical simulations of transitional and turbulent natural convection in laterally heated cylindrical enclosures for crystal growth

Abstract

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