A208 Natural convective heat transfer in a vertical channel with flow resistance at the lower end Two parallel plates heated symmetrically with a uniform heat flux

2001 ◽  
Vol 2001 (0) ◽  
pp. 355-356
Author(s):  
Isao ISHIHARA ◽  
Takahiko HONIDEN ◽  
Ryosuke Matsumoto
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Flow Resistance ◽  
Vertical Channel ◽  
Uniform Heat Flux ◽  
Parallel Plates ◽  
Uniform Heat

Investigation on Convective Heat Transfer over a Rotating Disk with Bottom Wall Subjected to Uniform Heat Flux

2012 ◽  
Vol 249-250 ◽  
pp. 443-451
Author(s):  
Jing Zhou Zhang ◽  
Xiao Ming Tan ◽  
Xing Dan Zhu
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Numerical Study ◽  
Rotating Disk ◽  
Outer Radius ◽  
Bottom Wall ◽  
Uniform Heat Flux ◽  
Uniform Heat

A three-dimensional numerical study on the flow and heat transfer characteristics over a rotating disk with bottom wall subjected to uniform heat flux was conducted with the use of RNG k- turbulent model. And some experiments were also made for validation. The effects of rotating angular speed and pin configuration on the temperature maps and convective heat transfer characte-ristics on rotating surface are analyzed. As the increase of rotating velocity, the impingement of pumping jet on the centre of rotating disk became stronger and the transition from laminar to turbu-lent occurred at the outer radius of rotating disk, which resulted in heat transfer enhancement. The pins on the disk made the pumping action of a rotating disk weaker. Simultaneously, they also acted as disturbing elements to the cyclone flow near the rotating disk surface, which made the overall heat transfer to be enhanced. Under the same extend areas of different pins, needle pin has higher convective heat transfer capacity than the discrete ring pin.

Natural convective heat-transfer from a vertical surface of uniform heat flux to a non-newtonian sutterby fluid

1974 ◽  
Vol 17 (1) ◽  
pp. 149-154 ◽  
Author(s):  
Fujii Tetsu ◽  
Miyatake Osamu ◽  
Fujii Motoo ◽  
Tanaka Hiroshi ◽  
Murakami Kentaro
Keyword(s):  
Heat Transfer ◽  
Heat Flux ◽  
Convective Heat Transfer ◽  
Convective Heat ◽  
Vertical Surface ◽  
Uniform Heat Flux ◽  
Uniform Heat
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