The Overall Convective Heat Transfer from Smooth Circular Cylinders

Morgan, V.T.

doi:10.1016/s0065-2717(08)70075-3

Cited by 657 publications

(288 citation statements)

References 111 publications

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“…Research in this area has several applications in engineering including heat exchangers and passive solar energy collectors. Morgan [1], Churchill and Chu [2] and others have determined empirical correlation equations which focus mainly on the area and time-averaged Nusselt number.…”

Section: Introductionmentioning

confidence: 99%

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Natural convection around a horizontal heated cylinder: The effects of vertical confinement

Atmane¹,

Chan

Murray

2003

International Journal of Heat and Mass Transfer

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Natural convection heat transfer from a single horizontal cylinder and a pair of vertically aligned horizontal cylinders is investigated. Surface heat transfer distributions around the circumference of the cylinders are presented for Rayleigh numbers of 2 x 10 6 , 4 x 10 6 and 6 x 10 6 and a range of cylinder spacings of 1.5, 2 and 3 diameters. With a cylinder pairing the lower cylinder is unaffected by the presence of the second cylinder; the same is true of the upper cylinder if the lower one is not heated. However, when both cylinders are heated it has been found that a plume rising from the heated lower cylinder interacts with the upper cylinder and significantly affects the surface heat transfer distribution. Spectral analysis of surface heat transfer signals has established the influence of the plume oscillations on the heat transfer. Thus, when the plume from the lower cylinder oscillates out of phase with the flow around the upper cylinder it increases the mixing and results in enhanced heat transfer.

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Section: Introductionmentioning

confidence: 99%

“…Nevertheless the motion of the fluid due to buoyancy can be turbulent. Morgan [1] stated that transition to turbulent flow may occur at a Rayleigh number of 2.0 x 10 7 . Kitamura et al [7] have investigated the turbulence transition and its influence on the heat transfer around a horizontal cylinder.…”

Section: Introductionmentioning

confidence: 99%

Natural convection around a horizontal heated cylinder: The effects of vertical confinement

Atmane¹,

Chan

Murray

2003

International Journal of Heat and Mass Transfer

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“…A modelling of the thermal behaviour of the probe of the Scanning Thermal Microscope (SThM) has recently been proposed by Grossel et al [14]. The thermal exchange along the probe was modelled as a convection gradient of which the heat transfer coefficient value h is maximal at the periphery of the probe/sample contact area (with h = 1200 W/m 2 /K at the end of the probe in contact with the sample and h = 60 W/m 2 /K at the other end [15] …”

Section: Heat Exchange Between the Probe And The Samplementioning

confidence: 99%

Finite Element Analysis of the Material’s Area Affected during a Micro Thermal Analysis Applied to Homogeneous Materials

Joliff

Bélec²,

Chailan³

2011

JSEMAT

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“…As we did not measure these quantities in our installation, it is necessary to make an empirical choice. Different correlation are available (Morgan [6]), (Dyban et al [7], (Hinze [8]), (Comings [9]) but they all refer to specific conditions. After testing different level of turbulence, we have adopted the following expression where τ represents the wall shear stress considered as a scale for near the wall turbulence …”

Section: Conditions In the Flowmentioning

confidence: 99%

03/01879 Heat transfer in the turbulent flow through a conduit for removal of combustion products

2003

Fuel and Energy Abstracts

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/npsi/ctrl?lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?lang=fr Access and use of this website and the material on it are subject to the Terms and Conditions set forth at http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://dx.doi.org/10.1016/S0360-1323(02)00233-0 Building and Environment, 38, 6, pp. 763-770, 2003-06-01 Heat transfer in the turbulent flow through a conduit for removal of combustion products Maref, W.; Cherkaoui, H.; Crausse, P.; Boisson, H. C. Proof should be sent to Dr. W.MAREF at the above address (1). 1The International Journal of Building Science and its Applications - BUILDING AND ENVIRONMENT AbstractA numerical model was presented to calculate the velocity and thermal fields of turbulent flow through a conduit for removal of combustion products. This study originated in response to an industrial concern to study dynamic behaviour of a smoke conduit connected to a high efficiency gas boiler working in permanent running mode (steady state), or cyclical non-static running mode (unsteady state).The momentum and temperature fields were calculated via a finite volume CFD code using the k-ε turbulence model. The validation of this calculation was conducted employing a full-scale experimentation. Comparisons of temperature fields were made, and the model was shown to give an acceptable quantitative approach for design within the framework of the coarse approximations adopted.

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The Overall Convective Heat Transfer from Smooth Circular Cylinders

Cited by 657 publications

References 111 publications

Natural convection around a horizontal heated cylinder: The effects of vertical confinement

Natural convection around a horizontal heated cylinder: The effects of vertical confinement

Finite Element Analysis of the Material’s Area Affected during a Micro Thermal Analysis Applied to Homogeneous Materials

03/01879 Heat transfer in the turbulent flow through a conduit for removal of combustion products

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