نتایج جستجو برای: non uniform heat source sink

تعداد نتایج: 1951709  

Fatemhe Nekounam Taher Barzegar

The concept of source and sink strength is presently well-recognized and accepted by the scientific community as a pertinent approach describing the mechanisms of carbohydrate partitioning into the different and competing organs at a whole plant or canopy scales. Sink–source relationships have a clear role in the size of sink organs. Besides the effect on organ size, sink/source ratio might also...

Journal: : 2023

In the present paper, effects of an inclined magnetic field and a non-uniform heat source sink on double diffusive convective stagnation point flow in slender stretching sheet are studied. The suitable similarity transformation is utilized for conversion nonlinear differential equations. These converted equations solved by means Differential Transformation method (DTM) with support symbolic sof...

Journal: :CoRR 2017
Vitor Bosshard Bernd Gärtner

A unique sink orientation (USO) is an orientation of the n-dimensional cube graph (n-cube) such that every face (subcube) has a unique sink. The number of unique sink orientations is nΘ(2 n) [13]. If a cube orientation is not a USO, it contains a pseudo unique sink orientation (PUSO): an orientation of some subcube such that every proper face of it has a unique sink, but the subcube itself hasn...

Journal: :international journal of nanoscience and nanotechnology 2015
s. sabbaghi s. mehravar

the aim of this paper is to enhance thermal performance of a microchannel heat sink by using nanoencapsulated phase change material (nepcm) slurry as a cooling fluid instead of pure fluid. a threedimensional model of a circular channel using water slurry of nepcm was developed. the results show a significant reduction in the mean fluid temperature along the channel and heat sink wall temperatu...

2017
James W. Palko Hyoungsoon Lee Chi Zhang Tom J. Dusseault Tanmoy Maitra Yoonjin Won Damena D. Agonafer Jess Moss Farzad Houshmand Guoguang Rong Joshua D. Wilbur Derrick Rockosi Ihor Mykyta Dan Resler David Altman Mehdi Asheghi Juan G. Santiago Kenneth E. Goodson

This paper reports the first integration of laser-etched polycrystalline diamond microchannels with template-fabricated microporous copper for extreme convective boiling in a composite heat sink for power electronics and energy conversion. Diamond offers the highest thermal conductivity near room temperature, and enables aggressive heat spreading along triangular channel walls with 1:1 aspect r...

2010
Kazuaki Yazawa Ali Shakouri

An analytic model for optimizing thermoelectric power generation system is developed and utilized for parametric studies. This model takes into account the external thermal resistances with hot and cold reservoirs. In addition, the spreading thermal resistance in the module substrates is considered to find the impact of designing small fraction of thermo elements per unit area. Previous studies...

Journal: :Entropy 2016
Lei Ma Xuxin Zhao Hongyuan Sun Qixing Wu Wei Liu

The flow and heat transfer characteristics of a closed-loop cooling system with a mini-channel heat sink for thermal management of electronics is studied experimentally. The heat sink is designed with corrugated fins to improve its heat dissipation capability. The experiments are performed using variable coolant volumetric flow rates and input heating powers. The experimental results show a hig...

A. Saboonchi, N. Mansouri

Transfer table is an essential stage between roughing and finishing rolling stands in a hot-strip rolling mill. High temperature and long time that strip is exposed to air at this stage cause a considerable heat loss that accounts for uneven temperature distribution, non-uniform surfaces, reduced product quality and increased production costs. Using thermal shields on the transfer table is cons...

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