一维粗糙表面间的近场辐射换热

工程热物理学报 , 2010, 31(7): 1209-1211.

1.南京理工大学动力工程学院,江苏,南京,210094

2.南京理工大学动力工程学院,江苏,南京,210094

3.南京理工大学动力工程学院,江苏,南京,210094

4.南京理工大学动力工程学院,江苏,南京,210094

基金项目: 国家自然科学基金(50936002;50776047)

NEAR-FIELD RADIATIVE HEAT TRANSFER BETWEEN TWO ONE-DIMENSIONAL ROUGH SURFACES

本文从电磁场理论和脉动耗散理论出发,运用时域有限差分(FDTD)方法,计算了Cu材料的两个粗糙面间的近场辐射换热,研究了粗糙面间距和粗糙度对辐射换热的影响.计算结果表明,辐射强度随间距的增大而减小,表面的粗糙度、介质的介电常数也是影响近场辐射强度的重要因素.

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