On CO2 fluid flow and heat transfer behavior in the subsurface, following leakage from a geologic storage reservoir

2007 ◽  
Vol 54 (8) ◽  
pp. 1677-1686 ◽  
Author(s):  
Karsten Pruess
Keyword(s):  
Heat Transfer ◽  
Fluid Flow ◽  
Storage Reservoir ◽  
Geologic Storage ◽  
Flow And Heat Transfer ◽  
Heat Transfer Behavior ◽  
Transfer Behavior

Numerical study on flow and heat transfer behavior of vortex and film composite cooling

2018 ◽  
Vol 32 (6) ◽  
pp. 2905-2917 ◽  
Author(s):  
Liang Li ◽  
Changhe Du ◽  
Xiuxiu Chen ◽  
Jiefeng Wang ◽  
Xiaojun Fan
Keyword(s):  
Heat Transfer ◽  
Numerical Study ◽  
Film Composite ◽  
Flow And Heat Transfer ◽  
Heat Transfer Behavior ◽  
Transfer Behavior

EFFECTS OF SYSTEM PARAMETERS ON THE TWO-PHASE FLOW AND HEAT TRANSFER BEHAVIOR IN A ROD BUNDLE

2019 ◽  
Author(s):  
Grant Garrett ◽  
Faith R. Beck ◽  
Yue Jin ◽  
Fan Bill Cheung ◽  
Stephen M. Bajorek ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
System Parameters ◽  
Rod Bundle ◽  
Flow And Heat Transfer ◽  
Heat Transfer Behavior ◽  
Transfer Behavior

Numerical investigation of fluid flow and heat transfer characteristics in novel circular wavy microchannel

2018 ◽  
Vol 233 (5) ◽  
pp. 954-966 ◽  
Author(s):  
Valaparla Ranjith Kumar ◽  
Karthik Balasubramanian ◽  
K Kiran Kumar ◽  
Nikhil Tiwari ◽  
Kanishk Bhatia
Keyword(s):  
Heat Transfer ◽  
Nusselt Number ◽  
Fluid Flow ◽  
Constant Heat Flux ◽  
Heat Transfer Characteristics ◽  
Number Range ◽  
Transfer Characteristics ◽  
Flow And Heat Transfer ◽  
Centrifugal Instability ◽  
Transfer Behavior

In this study, the fluid flow and heat transfer behavior in a novel circular wavy microchannel design is numerically examined and compared with a sinusoidal wavy microchannel. The numerical studies were carried out in the Reynolds number range of 100–300 under a constant heat flux wall boundary condition. The sinusoidal profile has a continuously varying curvature, which peaks at the crests and troughs, and diminishes to naught at each section at the middle of adjacent crests and troughs. On the other hand, the circular profile has a curvature constant in magnitude (and alternating in direction). Heat transfer in wavy microchannels is enhanced by vortex flow induced by centrifugal instability, which in turn depends on the curvature of fluid channel profile. The sinusoidal wavy microchannel has a curvature continuously varying in a large range results in large fluctuations of Nusselt number, while the Nusselt number in the circular channel has smaller fluctuations. Hence, heat transfer performance of the circular wavy microchannel is higher than that of the sinusoidal wavy microchannel. Velocity vectors, velocity contours, and temperature contours are presented to aid the explanation of hydrodynamic and heat transfer characteristics of fluid flow in the novel circular wavy microchannels. The Nusselt number and pressure drop along the channel are also compared with the sinusoidal wavy microchannel using a performance factor.

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