Forced convection heat transfer in doubly connected ducts

Forced convection heat transfer in doubly connected ducts bounded externaly by a circle and internally by a regular polygon of various shapes is analysed using a finite element method. Hydrodynamically and thermally developed, steady, laminar flow of a constant property fluid is investigated. An ins...

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Bibliographic Details
Published in:The International journal of heat and fluid flow 1987, Vol.8 (2), p.107-110
Main Authors: Solanki, S.C., Prakash, S., Saini, J.S., Gupta, C.P.
Format: Article
Language:English
Subjects:
convection
doubly connected ducts
ducts
Exact sciences and technology
finite element method
Fluid dynamics
friction factor
Fundamental areas of phenomenology (including applications)
heat transfer
laminar flow
Nusselt number
Physics
Reynolds number
thermal insulation
thermally developed temperature field
Turbulent flows, convection, and heat transfer
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Summary:Forced convection heat transfer in doubly connected ducts bounded externaly by a circle and internally by a regular polygon of various shapes is analysed using a finite element method. Hydrodynamically and thermally developed, steady, laminar flow of a constant property fluid is investigated. An insulated outer tube and constant heat flux at the inner core are considered. Temperature profiles as well as Nusselt numbers are presented. Salient characteristics of the temperature field in such passages are identified. Correlations for the Nusself number with aspect ratio are suggested.
ISSN:0142-727X
1879-2278
DOI:10.1016/0142-727X(87)90007-5