Journal ArticleDOI
Computation of Laminar Heat Transfer in Rotating Rectangular Ducts
TLDR
In this article, the effect of rotation on the development of the flow patterns and velocity and temperature variations in a laminar flow of air in a rotating rectangular duct with aspect ratio 2/1 was investigated.Abstract:
Cooling passages are often used in the rotor windings of large electrical generators, where the flow channel rotates about an axis parallel to but displaced from its axis of symmetry. In such a rotating passage, Coriolis accelerations and density gradients caused by the heated wall lead to the development of secondary flows which can have strong effects on heat transfer and pressure drop characteristics. Finite difference solutions were obtained for laminar flow of air in a rotating rectangular duct with aspect ratio 2/1, where the duct wall is subjected to a uniform heat flux. The solutions show the effect of rotation on the development of the flow patterns and velocity and temperature variations. Results for Nusselt number and friction factor are presented in both the inlet and fully developed regions over a range of Grashof and Reynolds numbers.read more
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Journal ArticleDOI
Heat transfer-a review of 1985 literature
E. R. G. Eckert,Richard J Goldstein,Emil Pfender,W. E. Ibele,James W. Ramsey,Terrence W. Simon,N.A. Decker,Thomas H. Kuehn,Handol Lee,Steven L. Girshick +9 more
Journal ArticleDOI
Numerical Segregation of the Effects of Body Forces in a Rotating, Differentially Heated Enclosure
TL;DR: In this paper, the effects of Coriolis force, centrifugal force, and thermal buoyancy force on an air-filled, differentially heated enclosure of square cross section, with the enclosure rotated about its horizontal axis, are classified numerically.
Journal ArticleDOI
Developing convective flow in a square channel partially filled with a high porosity metal foam and rotating in a parallel-mode
TL;DR: In this paper, the development of three-dimensional heat transfer and fluid flow in a square channel rotating in a parallel mode has been investigated numerically, and the generalized model is used to mathematically simulate the momentum equations employing the Boussinesq approximation for the density variation.
Journal ArticleDOI
Combined mixed convection and radiation heat transfer in rectangular ducts rotating about a parallel axis
TL;DR: In this article, the combined heat transfer of convection and radiation in rectangular ducts rotating in a parallel mode was investigated numerically in detail, and the coupled momentum and energy equations were solved by the DuFort-Frankel numerical scheme to examine the interactions of the convection with radiation.
Journal ArticleDOI
Thermal Buoyancy Effects in RotatingNon-Isothermal Flows
TL;DR: In this paper, the rotation-induced thermal buoyancy effects stemming from the coexistence of rotational body forces and the nonuniformity of the fluid temperature field are considered.
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