两个名义上互相接触的固体表面,实际上接触仅仅发生在一些离散的面积元上,在未接触的界面之间的间隙常常充满了空气,热量将以导热的方式穿过这种气隙层,这种情况与固体表面完全接触相比,增加了附加的传递阻力,称为接触热阻。接触热阻等于两个交界表面温度之差除以热流量。接触热阻单位是:㎡·K/W。
摘要 关键词]钢管混凝土柱;热传导;接触热阻;界面 [gap=1286]Keywords:concrete filled steel tubes; heat conduction; thermal contact resistance; interface
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e 界面边界条件 不考虑接触热阻(contact thermal resistance)影响时,界面边界条件(interface boundary condition)指界面两 侧的温度和热通量同时相等。
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... 接触曝气池、contact aerator 接触热阻、contact resistance 接触时间、contact time ...
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Compared with related experiments and other’s results, the model has good identity. It can be used to calculate the thermal contact resistance of joints.
通过算例分析及与相关实验的对比表明:该模型的解析计算值和实验值吻合较好,可用于接触热阻的描述。
参考来源 - 机床固定结合面动态与热态特性分析The analysis and discussion to the effect of some parameters on the contact thermal resistance are also made in the work, and then some useful conclusion is made.
另外,本文对影响接触热阻的一些参数进行了研究与分析,得出了有益的结论。
参考来源 - 粗糙表面热接触有限元数值分析This measurement not only can eliminate the impact of thermal contact resistance, but also is applicable to measure the thermal conductivity of other one-dimensional materials.
这种方法不仅能有效的避免接触热阻的影响,而且适用于其他一维材料的热导率测量。
参考来源 - 碳纳米管热传导研究Has considered the contact thermal resistance and the heat radiation factor in the thermal analysis process, by contrast and analysis, obtained influence situation of contact thermal resistance and heat radiation to collector’s temperature distribution.3.
2.在热分析过程中考虑了接触热阻和热辐射因素,通过对比分析,得到了接触热阻和热辐射对收集极温度分布的影响情况。
参考来源 - 空间行波管收集极的热分析·2,447,543篇论文数据,部分数据来源于NoteExpress
介绍了接触热阻的测量原理和传统的实验装置。
The experimental principles and equipment of thermal contact resistance were introduced.
根据实验结果,对接触热阻的计算公式进行了修正。
According to the experiment results, the formula used to calculate the thermal contact resistance was adjusted.
根据该分形模型,讨论了结合面接触热阻的影响因素。
The influential factors in the resistance are discussed based on the model.
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