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Analytical investigation of heat transfer and fluid flow through duct of parabolic cross-section
V. M.K. Sastri
Published in Publ by ASME, New York, NY, United States
1991
Volume: 181
   
Pages: 47 - 54
Abstract
Forced convective heat transfer in straight cylindrical ducts of parabolic cross-section under three most important thermal boundary conditions: (a) constant wall temperature (T boundary condition), (b) circumferentially constant wall temperature and axially constant wall heat flux (Hl boundary condition) and (c) both circumferentially and axially constant wall heat flux (H2 boundary condition) for a wide range of aspect ratios from 0.5 to 10.0 is reported in this paper. A finite difference method formulated in boundary-fitted non-orthogonal general curvilinear co-ordinates is used for the prediction of forced convective heat transfer in parabolic duct, the open face of which is covered by a flat plate. The hydrodynamically fully developed flow and the thermally developing flow region in this type of duct is considered for the prediction of friction factors and Nusselt numbers. The parabolic duct results are compared with those of the circular duct on the basis of constant hydraulic diameter and Reynolds number.
About the journal
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
PublisherPubl by ASME, New York, NY, United States
ISSN02725673
Open AccessNo
Concepts (6)
  •  related image
    FLOW OF FLUIDS--DUCTS
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    Heat exchangers
  •  related image
    DUCTS OF PARABOLIC CROSS-SECTION
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    FORCED CONVECTIVE HEAT TRANSFER
  •  related image
    STRAIGHT CYLINDRICAL DUCTS
  •  related image
    Heat transfer