Convective Heat Transfer inside a Rotating Cylinder Experiencing an Axial Air Flow

2021 ◽  
Author(s):  
Desmond Adair ◽  
Bakhtiyar Kalzhan
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Air Flow ◽  
Rotating Cylinder

Convective heat transfer inside a rotating cylinder with an axial air flow

2006 ◽  
Vol 45 (12) ◽  
pp. 1166-1178 ◽  
Author(s):  
S. Seghir-Ouali ◽  
D. Saury ◽  
S. Harmand ◽  
O. Phillipart ◽  
D. Laloy
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Air Flow ◽  
Rotating Cylinder

Numerical Study on the Surface Convective Heat Transfer of Mass Concrete Structure

2015 ◽  
Vol 723 ◽  
pp. 992-995
Author(s):  
Biao Li ◽  
Fu Guo Tong ◽  
Chang Liu ◽  
Nian Nian Xi
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Flow Velocity ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Air Flow ◽  
Convective Heat Transfer Coefficient ◽  
Concrete Surface ◽  
Mass Concrete ◽  
Air Flow Velocity

The surface convective heat transfer of mass concrete is an important element of concrete structure temperature effect analysis. Based on coupled Thermal Fluid governing differential equation and finite element method, the paper calculated and analyzed the dependence of the concrete surface convective heat transfer on the air flow velocity and the concrete thermal conductivity coefficient. Results show that the surface convective heat transfer coefficient of concrete is a quadratic polynomial function of the air flow velocity, but influenced much less by the air flow velocity when temperature gradient is dominating in heat transfer. The concrete surface convective heat transfer coefficient increases linearly with the thermal conductivity of concrete increases.

Numerical and Experimental Study of Flow and Convective Heat Transfer on a Rotor of a Discoidal Machine with Eccentric Impinging Jet

2019 ◽  
pp. 1-29
Author(s):  
Chadia Haidar ◽  
Rachid Boutarfa ◽  
Mohamed Sennoune ◽  
Souad Harmand
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Steady State ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Air Flow ◽  
Impinging Jet ◽  
Rotating Disk ◽  
Reynolds Numbers ◽  
Air Jet

This work focuses on the numerical and experimental study of convective heat transfer in a rotor of a discoidal the machine with an eccentric impinging jet. Convective heat transfers are determined experimentally in steady state on the surface of a single rotating disk. The experimental technique is based on the use of infrared thermography to access surface temperature measurement, and on the numerical resolution of the energy equation in steady-state, to evaluate local convective coefficients. The results from the numerical simulation are compared with heat transfer experiments for rotational Reynolds numbers between 2.38×105 and 5.44×105 and for the jet's Reynolds numbers ranging from 16.5×103 to 49.6 ×103. A good agreement between the two approaches was obtained in the case of a single rotating disk, which confirms us in the choice of our numerical model. On the other hand, a numerical study of the flow and convective heat transfer in the case of an unconfined rotor-stator system with an eccentric air jet impinging and for a dimensionless spacing G=0.02, was carried out. The results obtained revealed the presence of different heat transfer zones dominated either by rotation only, by the air flow only or by the dynamics of the rotation flow superimposed on that of the air flow. Critical radii on the rotor surface have been identified

scholarly journals Convective Heat Transfer in an Annulus with an Inner Rotating Cylinder

1966 ◽  
Vol 32 (242) ◽  
pp. 1541-1549 ◽  
Author(s):  
Hiroshi AOKI ◽  
Hidetaka NOHIRA ◽  
Hajime ARAI
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Rotating Cylinder

scholarly journals Convective Heat Transfer in an Annulus with an Inner Rotating Cylinder

1967 ◽  
Vol 10 (39) ◽  
pp. 523-532 ◽  
Author(s):  
Hiroshi AOKI ◽  
Hidetaka NOHIRA ◽  
Hajime ARAI
Keyword(s):  
Heat Transfer ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Rotating Cylinder

An experimental investigation in forced convective heat transfer and friction factor of air flow over aligned round and flattened tube banks

2019 ◽  
Vol 48 (6) ◽  
pp. 2350-2369 ◽  
Author(s):  
Ataalah Hussain Jassim ◽  
Tahseen Ahmad Tahseen ◽  
Ahmed Waheed Mustafa ◽  
Md Mustafizur Rahman ◽  
Mahadzir Ishak
Keyword(s):  
Heat Transfer ◽  
Experimental Investigation ◽  
Convective Heat Transfer ◽  
Friction Factor ◽  
Convective Heat ◽  
Air Flow ◽  
Forced Convective Heat Transfer ◽  
Tube Banks
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