Heat transfer reduction at the separation point on a spinning sphere in mixed convection
Küçük Resim Yok
Tarih
2002
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
John Wiley & Sons Ltd
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The unsteady laminar thermal boundary-layer flow over an impulsively. started translating and spinning isothermal body of revolution in the case of mixed convection is investigated. Velocity components and temperature are obtained as series of functions in powers of time. The general results are applied to a spinning sphere and the development of the surface heat flux evaluated at the separation point as it advances upstream is determined. The surface heat flux evaluated at the separation point as it moves forward decreases due to the increasing magnitude and influence of the centrifugal force and it is augmented by the opposing flow and reduced by the aiding flow. Reduction of the surface heat flux at the separation point is as low as 50 per cent as compared to the heat flux at the front stagnation point. Copyright (C) 2002 John Wiley Sons, Ltd.
Açıklama
Anahtar Kelimeler
Unsteady, Mixed Convection, Laminar, Boundary Layer, Spinning, Sphere, Separation Point, Rotating Sphere, Boundary-Layer, Laminar, Flow, Suction, Bodies, Region, Body
Kaynak
International Journal Of Energy Research
WoS Q Değeri
Q3
Scopus Q Değeri
Q1
Cilt
26
Sayı
4
