Convective heat transfer in axisymmetric enclosures of different configurations under the conditions of their axial rotation and external heating
V.V. Vetrov and A.A. VorobyevВ
Tula State University
Tula, Russia
В E-mail: andreyv.v@yandex.ru
Keywords: convective heat transfer, centrifugal field of mass forces, non-isothermality, closed air cavity, rotation, convection coefficient.
Pages: 259–274
Abstract
The phenomenon of the intensification of convective heat transfer through air cavities under the conditions of their axial rotation and external heating based on the rise of centrifugal body forces in differently heated air medium has been substantiated theo-retically and confirmed experimentally. The criterion dependencies for convection coefficients of axisymmetric cylindrical and conical closed air cavities subjected to external heating and axial rotation have been obtained using the results of the physical and numerical experiments. Both single-layer cylindrical cavities and two-layer ones with perforating internal orifices have been considered.
DOI: 10.1134/S086986431702010X
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