E3S Web Conf.
Volume 236, 20213rd International Conference on Energy Resources and Sustainable Development (ICERSD 2020)
|Number of page(s)||7|
|Section||Development, Utilization and Protection of Traditional Energy Resources|
|Published online||09 February 2021|
The flow and heat performance of tree-like network heat sink with diverging–converging channel
Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230027, China
* Corresponding author. Tel.: +86 0551 email@example.com (Minghou Liu).
A tree-like network heat sink with diverging–converging channel is designed, and effect of flow rate, channel diverging-converging angles on the flow and heat dissipation performance of the tree-like network heat sink is analysed and compared by numerical simulation. Results show that the diverging– converging angle of 2° can reduce the pressure drop by 14% when inlet mass flow rate is 0.00499kg/s. And the maximum temperature, the temperature difference between the maximum and minimum of the heat sink increases by 0.63K and 0.92K respectively. As the diverging-converging angle increases to 4°, however, it only reduces the pressure drop by 13% and can not bring more pressure drop due to formation of flow recirculation inside the tree-like network heat sink channel. Therefore, the diverging–converging fractal micro-channel heat sink with 2° has good heat dissipation performance with obvious lower pumping power.
© The Authors, published by EDP Sciences 2021
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