Natural Convection in Tilted Square Enclosure with Inner Circular Cylinder at Different Vertical Locations

Jeong, Seung Jae; Yoon, Hyun Sik; Choi, Chang Kyoung; Ha, Man Young

doi:10.3795/ksme-b.2013.37.12.1113

Transactions of the Korean Society of Mechanical Engineers B

2013

DOI: 10.3795/ksme-b.2013.37.12.1113

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Natural Convection in Tilted Square Enclosure with Inner Circular Cylinder at Different Vertical Locations

Seung Jae Jeong¹,

Hyun Sik Yoon²,

Chang Kyoung Choi³

et al.

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2014

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Effect of Prandtl Number on Natural Convection in Tilted Square Enclosure with Inner Circular Cylinder

Mun¹,

Choi²,

et al. 2014

Transactions of the Korean Society of Mechanical Engineers B

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A numerical analysis of the effect of the Prandtl number on the natural convection in a cold outer tilted square enclosure with an inner hot circular cylinder is presented. Several Prandtl numbers (Pr=0.1, 0.7, 7) are considered, with different angles(0°, 15°, 30°, 45°) for the enclosure and Rayleigh numbers (Ra=10 3 , 10 4 ,10 5). The effect of the Prandtl number on the natural convection is analyzed using isotherms and streamline and surface-averaged Nusselt numbers. The flow and heat transfer characteristics are found to be dependent on the time for Ra=10 5 and Pr=0.1 at angles of 0° and 45°. However, in the other cases, the flow and heat transfer characteristics are independent of the time.The surfaceaveraged Nusselt number increases with an increase in the Prandtl number. As the Prandtl number increases, the Nusselt number becomes larger regardless of the angle for Ra=10 5. In particular, the Nusselt number steeply increases when the angle is 45° for Ra=10 5 and Pr=0.1.

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Effect of Prandtl Number on Natural Convection in Tilted Square Enclosure with Inner Circular Cylinder

Mun¹,

Choi²,

et al. 2014

Transactions of the Korean Society of Mechanical Engineers B

Self Cite

View full text Add to dashboard Cite

show abstract

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Natural Convection in Tilted Square Enclosure with Inner Circular Cylinder at Different Vertical Locations

Cited by 1 publication

References 8 publications

Effect of Prandtl Number on Natural Convection in Tilted Square Enclosure with Inner Circular Cylinder

Effect of Prandtl Number on Natural Convection in Tilted Square Enclosure with Inner Circular Cylinder

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