Natural convection in polygonal enclosures with inner circular cylinder

Habibis Saleh, Ammar I. Alsabery, Ishak Hashim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

This study investigates the natural convection induced by a temperature difference between cold outer polygonal enclosure and hot inner circular cylinder. The governing equations are solved numerically using built-in finite element method of COMSOL. The governing parameters considered are the number of polygonal sides, aspect ratio, radiation parameter, and Rayleigh number. We found that the number of contra-rotative cells depended on polygonal shapes. The convection heat transfer becomes constant at L=D.0:77 and the polygonal shapes are no longer sensitive to the Nusselt number profile.

Original languageEnglish
Article number15622899
JournalAdvances in Mechanical Engineering
Volume7
Issue number12
DOIs
Publication statusPublished - 1 Dec 2015

Fingerprint

Heat convection
Circular cylinders
Nusselt number
Enclosures
Natural convection
Aspect ratio
Finite element method
Radiation
Temperature

Keywords

  • Finite element method
  • hot cylinder
  • natural convection
  • polygonal enclosure

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Natural convection in polygonal enclosures with inner circular cylinder. / Saleh, Habibis; Alsabery, Ammar I.; Hashim, Ishak.

In: Advances in Mechanical Engineering, Vol. 7, No. 12, 15622899, 01.12.2015.

Research output: Contribution to journalArticle

@article{68fdeb3e8f9a4696ae044399a30f8860,
title = "Natural convection in polygonal enclosures with inner circular cylinder",
abstract = "This study investigates the natural convection induced by a temperature difference between cold outer polygonal enclosure and hot inner circular cylinder. The governing equations are solved numerically using built-in finite element method of COMSOL. The governing parameters considered are the number of polygonal sides, aspect ratio, radiation parameter, and Rayleigh number. We found that the number of contra-rotative cells depended on polygonal shapes. The convection heat transfer becomes constant at L=D.0:77 and the polygonal shapes are no longer sensitive to the Nusselt number profile.",
keywords = "Finite element method, hot cylinder, natural convection, polygonal enclosure",
author = "Habibis Saleh and Alsabery, {Ammar I.} and Ishak Hashim",
year = "2015",
month = "12",
day = "1",
doi = "10.1177/1687814015622899",
language = "English",
volume = "7",
journal = "Advances in Mechanical Engineering",
issn = "1687-8132",
publisher = "Hindawi Publishing Corporation",
number = "12",

}

TY - JOUR

T1 - Natural convection in polygonal enclosures with inner circular cylinder

AU - Saleh, Habibis

AU - Alsabery, Ammar I.

AU - Hashim, Ishak

PY - 2015/12/1

Y1 - 2015/12/1

N2 - This study investigates the natural convection induced by a temperature difference between cold outer polygonal enclosure and hot inner circular cylinder. The governing equations are solved numerically using built-in finite element method of COMSOL. The governing parameters considered are the number of polygonal sides, aspect ratio, radiation parameter, and Rayleigh number. We found that the number of contra-rotative cells depended on polygonal shapes. The convection heat transfer becomes constant at L=D.0:77 and the polygonal shapes are no longer sensitive to the Nusselt number profile.

AB - This study investigates the natural convection induced by a temperature difference between cold outer polygonal enclosure and hot inner circular cylinder. The governing equations are solved numerically using built-in finite element method of COMSOL. The governing parameters considered are the number of polygonal sides, aspect ratio, radiation parameter, and Rayleigh number. We found that the number of contra-rotative cells depended on polygonal shapes. The convection heat transfer becomes constant at L=D.0:77 and the polygonal shapes are no longer sensitive to the Nusselt number profile.

KW - Finite element method

KW - hot cylinder

KW - natural convection

KW - polygonal enclosure

UR - http://www.scopus.com/inward/record.url?scp=84951189631&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84951189631&partnerID=8YFLogxK

U2 - 10.1177/1687814015622899

DO - 10.1177/1687814015622899

M3 - Article

VL - 7

JO - Advances in Mechanical Engineering

JF - Advances in Mechanical Engineering

SN - 1687-8132

IS - 12

M1 - 15622899

ER -