Effect of transverse synthetic jet on heat transfer characteristics of the heat sink situated in a rectangular channel with axial main flow

2021 ◽  
Author(s):  
Tzer-Ming Jeng ◽  
Sheng-Chung Tzeng ◽  
Ching-Wen Tseng ◽  
Yi-Chun Li
Keyword(s):  
Heat Transfer ◽  
Heat Sink ◽  
Rectangular Channel ◽  
Synthetic Jet ◽  
Main Flow ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics

Thermal Performance Measurement for Confined Heat Sinks by Using a Modified Transient Liquid Crystal Technique

2003 ◽  
Author(s):  
S. T. Kuo ◽  
M. P. Wang ◽  
M. C. Wu ◽  
Y. H. Hung
Keyword(s):  
Heat Transfer ◽  
Liquid Crystal ◽  
Heat Sink ◽  
Heat Sinks ◽  
Experimental Investigations ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Flow And Heat Transfer ◽  
Preheating Temperature ◽  
Parametric Studies

A series of experimental investigations with a new modified transient liquid crystal method on the studies related to the fluid flow and heat transfer characteristics in a channel installed with a heat sink have been successfully performed. The parametric studies on the local and average effective heat transfer characteristics for confined heat sinks have been explored. The influencing parameters and conditions include air preheating temperature at channel inlet, flow velocity and heat sink types. Besides, a concept of the amount of enhanced heat transfer (AEHT) is introduced and defined as the ratio of j/f. The j/f ratio is almost independent of Reynolds number for a specific confined heat sink. The j/f ratios are 0.0603 and 0.0124 for fully-confined and unconfined heat sinks, respectively.

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