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Finite‐difference solution of heat transfer in developing flow in an annulus of two rotating cylinders
Author(s) -
Soundalgekar V. M.,
Sarma P. R. L.
Publication year - 1987
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.4440110416
Subject(s) - annulus (botany) , nusselt number , heat transfer , reynolds number , taylor number , mechanics , thermodynamics , concentric , finite difference method , finite difference , flow (mathematics) , physics , materials science , mathematics , geometry , turbulence , mathematical analysis , composite material
Finite‐difference analysis of the heat transfer in the developing flow of an annulus bounded by two concentric and rotating cylinders is carried out. The two cylinders are assumed to be at unequal temperatures. Numerical results for temperature profiles, mixing‐cup temperature θ m and the Nusselt number Nu are derived for different values of Re 2 /Ta (Re = axial Reynolds number; Ta = Taylor number), θ (ratio of the angular velocities of two cylinders) and N (ratio of the two radii). Temperature profiles are shown graphically, whereas the numerical values of θ m and Nu are listed in tables. The effects of these parameters are discussed.