Numerical analysis of two dimensional pin fins with non-constant base heat flux

2005 ◽  
Vol 46 (6) ◽  
pp. 881-892 ◽  
Author(s):  
Yu-Ching Yang ◽  
Haw-Long Lee ◽  
Eing-Jer Wei ◽  
Jenn-Fa Lee ◽  
Tser-Son Wu
Keyword(s):  
Heat Flux ◽  
Numerical Analysis ◽  
Two Dimensional ◽  
Pin Fins

Two-dimensional inverse problem in estimating heat flux of pin fins

2001 ◽  
Vol 28 (6) ◽  
pp. 793-801 ◽  
Author(s):  
U.C. Chen ◽  
W.J. Chang ◽  
J.C. Hsu
Keyword(s):  
Heat Flux ◽  
Inverse Problem ◽  
Two Dimensional ◽  
Pin Fins

Numerical Analysis of Thermomechanical Behavior of a Multimaterial Under Thermal Cycling Conditions

2006 ◽  
Author(s):  
Bilal Taher ◽  
Rafic Youne`s ◽  
Said Abboudi
Keyword(s):  
Heat Flux ◽  
Numerical Analysis ◽  
Damage Model ◽  
Thermal Conditions ◽  
Thermomechanical Behavior ◽  
Mechanical Effect ◽  
The Other ◽  
Two Dimensional ◽  
Multiple Functions ◽  
Exchange Condition

The increasing need of structures having multiple functions orientates designers to combine materials in order to obtain, according to coupling scales, multi-materials structures. The lifetime of these structures represents the essential decisive element for study offices and manufacturers. The results of this work should add to the set of functional charges and constraints of resistance, the improvement of the lifetime as an objective to optimize a multi-material. In this study, we propose a numerical analysis by the finite elements method of the thermo mechanical behavior of these materials and their damage under thermal cyclic solicitations. The sample is a two-dimensional plate constituted of two different isotropic layers (steel, aluminum) submitted to variable thermal conditions (heat flux condition on one side and convection exchange condition on the opposite side). The sample is supposed to be fixed in one direction and free in the other. The damage model is based on the works of Lemaiˆtre and Chaboche [8]. Numerical results are presented for different forms of heat flux cycling (triangular, square and sinusoidal excitations) with a comparison of the multi-material damage for each excitation. The study is concluded by an empirical optimizing of the thickness of materials according to the total lifetime caused by thermo-mechanical effect.

NUMERICAL ANALYSIS OF THE THERMAL PERFORMANCE OF A NOVEL DOUBLE-LAYERED HEAT SINK WITH STAGGERED PIN FINS

2019 ◽  
Vol 50 (8) ◽  
pp. 757-772 ◽  
Author(s):  
Yicang Huang ◽  
Hui Li ◽  
Shengnan Shen ◽  
Yongbo Xue ◽  
Mingliang Xu ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Thermal Performance ◽  
Heat Sink ◽  
Pin Fins
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