The effects of shock impingement on the heat transfer around blunt bodies at M equal 4.6 and 7

1966 ◽  
Author(s):  
B. EDNEY
Keyword(s):  
Heat Transfer ◽  
Blunt Bodies ◽  
Shock Impingement

RADIATION-CONVECTIVE HEAT TRANSFER BETWEEN GAS FLOW AND BLUNT BODIES OF POROUS INJECTION OF RADIATION ABSORBING SUBSTANCES

1970 ◽  
Author(s):  
V. P. Motulevich ◽  
M.S. Bespalov ◽  
A.N. Boyko ◽  
V. M. Eroshenko ◽  
E. D. Sergievskii ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Gas Flow ◽  
Blunt Bodies ◽  
Porous Injection

Heat transfer calculation of blunt bodies in nonequilibrium air flow

1997 ◽  
Author(s):  
N. Hamamoto ◽  
M. Lee ◽  
Y. Nakamura ◽  
I. Menshov ◽  
N. Hamamoto ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Air Flow ◽  
Blunt Bodies ◽  
Heat Transfer Calculation

Laminar Heat Transfer Around Blunt Bodies in Dissociated Air

1959 ◽  
Vol 26 (7) ◽  
pp. 421-430 ◽  
Author(s):  
NELSON H. KEMP ◽  
PETER H. ROSE ◽  
RALPH W. DETRA
Keyword(s):  
Heat Transfer ◽  
Blunt Bodies ◽  
Dissociated Air

Heat Transfer Enhancement in Channels With Natural Convection Flow by Kármán Vortex Streets

2014 ◽  
Author(s):  
Paul Mathis ◽  
Matthias Herpers ◽  
Dirk Müller
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Heat Transfer Enhancement ◽  
Convection Flow ◽  
Parameter Study ◽  
Transfer Enhancement ◽  
Natural Convection Flow ◽  
Vortex Streets ◽  
Blunt Bodies ◽  
Karman Vortex

In this study, a new method of enhancing heat transfer in heated channels with purely natural convection flow is presented. Blunt bodies which serve as vortex promoters are introduced into the channel, leading to Kármán vortex streets. Vortex shedding behind cylinders and other blunt bodies leads to a convective mixing of the flow, bringing cooler fluid from the center of the channel to the heated walls. Consequently, the temperature gradient is increased and by that the heat transfer. The purpose of this work is investigating a parameter field in order to identify optimal geometrical parameters for maximizing heat transfer in heated vertical channels. This is done without adding any active mechanical devices for forced convection, but instead by passive means only, meaning cylinders in particular. A parameter study comprising geometrical degrees of freedom like diameter and position of the vortex promoting bodies and different wall temperatures is performed numerically, indicating a heat transfer enhancement of up to 47.4% compared to the reference case without vortex promoters. The CFD results are compared to heat delivery measurements and visualization data.

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