| 大功率LED路灯方向敏感性研究 |
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| 引用本文： | 王孝红,吴珂,黄志义.大功率LED路灯方向敏感性研究[J].科学技术与工程,2013,13(32). |
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| 作者姓名： | 王孝红 吴珂 黄志义 |
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| 作者单位： | 中交第一公路勘察设计研究院有限公司,浙江大学交通工程研究所,浙江大学交通工程研究所 |
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| 基金项目： | 基于界面微结构模型的LED高效散热机理研究及全热链多尺度模拟 |
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| 摘 要： | 基于计算流体动力学（CFD）方法，构建了包括固体散热结构和周围流体区域的全场三维数学模型。利用该模型进行了强制对流下大功率LED路灯散热性能的方向敏感性研究，并分析了翅片间距和入口风速对其方向敏感性的影响。研究结果表明：板翅式换热器具有明显的方向敏感性，随着翅片间距的增大和入口风速的减小，这种方向敏感性逐渐弱化。
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| 关 键 词： | LED路灯 计算流体动力学 方向敏感性 |
| 收稿时间： | 7/2/2013 12:00:00 AM |
| 修稿时间： | 7/2/2013 12:00:00 AM |
Study on Orientation Effect of High-Power Street Lamp |
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| wang xiaohong,wu ke and huang zhiyi.Study on Orientation Effect of High-Power Street Lamp[J].Science Technology and Engineering,2013,13(32). |
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| Authors: | wang xiaohong wu ke and huang zhiyi |
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| Abstract: | Based on Computational Fluid Dynamics (CFD) method, a whole three-dimensional mathematical model of LED luminaries and external fluid flow are constructed. Using this model, orientation effect on forced convection dissipation performance of high-power street lamp is studied. The influence of fins spacing and inlet velocity to orientation sensitivity of it also were analyzed. Research results showed that the heat dissipation performance of horizontal rectangular fin arrays has obvious orientation effect, and that the orientation effect is weakening with the increase of fins spacing and decrease of inlet velocity. |
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| Keywords: | High-Power Street Lamp Computational Fluid Dynamics Orientation Effect |
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