首页> 外文会议>2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring >Investigate of Flow and Heat Transfer Characteristics of Longitudinal Vortex Generators Periodical Fitted in Narrow Rectangular Channel
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Investigate of Flow and Heat Transfer Characteristics of Longitudinal Vortex Generators Periodical Fitted in Narrow Rectangular Channel

机译:装在矩形矩形通道内的纵向涡流发生器的流动和传热特性的研究

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In order to enhance heat transfer in cooling channel of plate type fuel element in reactor core, the numerical simulation on the heat transfer and pressure drop in a vertical rectangular narrow channels with Longitudinal Vortex Generators (LVGs) mounted on was carried out. In this paper, the heat transfer and fluid flow in a vertical narrow channel with one surface periodically mounted Longitudinal Vortex Generators (LVGs) are investigated by numerical simulation for water. The development of longitudinal vortex along the flow direction and its influence on heat transfer and flow were also presented in detail while keeping the aspect ratio of LVG sconstant. The effect of LVGs¡¯ flow direction and effective action range were also conducted with Reynolds number ranging from 3000 to 3.5¡Á104 when the incidence angler of LVGs is equal to 440. It was found that the heat transfer performance in rectangular channel could be greatly enhanced by LVGs.
机译:为了增强反应堆堆芯板式燃料元件冷却通道中的传热,对装有纵向涡流发生器(LVG)的垂直矩形窄通道中的传热和压降进行了数值模拟。本文通过水的数值模拟研究了一个垂直周期性狭窄的垂直通道中的传热和流体流动,该垂直通道在一个表面上周期性地安装了纵向涡流发生器(LVG)。在保持LVG长宽比恒定的同时,还详细介绍了纵向涡流沿流动方向的发展及其对传热和流动的影响。当LVG的入射角等于440时,在雷诺数为3000〜3.5×104的情况下,LVGs的流动方向和有效作用范围也受到影响。发现矩形通道内的传热性能可能很大。 LVG增强了功能。

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