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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical investigations of curved square channel from the viewpoint of field synergy principle
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Numerical investigations of curved square channel from the viewpoint of field synergy principle

机译：基于场协同原理的弯曲方槽数值研究

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摘要

A curved square channel in laminar flow is numerically investigated based on the classical Navier-Stokes equations from the viewpoint of the field synergy principle. The field synergy principle may accurately describe the curved channel has higher convective heat transfer rate in the case that the heat transfer surface is specified on the outer wall, rather than on the inner wall. The field synergy principle could also be responsible for that the curved channel can enhance the convective heat transfer significantly at the cost of the slight increase of the flow resistance. The field synergy number represents the degree of the synergy between the temperature gradient and the velocity vector, the higher field synergy number leads to the higher convective heat transfer rate under the same Reynolds number and Prandtl number. The field synergy number plays the same positive role in the convective heat transfer whether the fluid is heated or cooled.
机译：从场协同原理的角度，基于经典的Navier-Stokes方程，对层流中的弯曲方形通道进行了数值研究。场协同原理可以准确地描述在传热表面指定在外壁而不是内壁的情况下，弯曲通道具有更高的对流传热率。场协同原理也可能是弯曲通道可以显着增强对流换热的原因，其代价是流阻略有增加。场协同数表示温度梯度与速度矢量之间的协同程度，在相同的雷诺数和普朗特数下，场协同数越高，对流传热速率越高。无论流体是加热还是冷却，场协同数在对流传热中都起着相同的积极作用。

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