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南京航空航天大学k8凯发集团主页平台管理系统 刘向雷-k8凯发集团
教授 博士生导师
招生学科专业：
动力工程及工程热物理 -- 【招收博士、硕士研究生】 -- 能源与动力学院
航空宇航科学与技术 -- 【招收博士、硕士研究生】 -- 能源与动力学院
能源动力 -- 【招收博士、硕士研究生】 -- 能源与动力学院
主要任职：飞行器热管理与能量利用工信部重点实验室主任
毕业院校：美国佐治亚理工学院（georgia institute of technology）
学历：美国佐治亚理工学院
学位：工学博士学位
所在单位：能源与动力学院
电子邮箱：
enhancement of near-field thermal radiation of graphite
点击次数：
所属单位：能源与动力学院
发表刊物：kung cheng je wu li hsueh pao
摘要：graphite, one of the few naturally existing hyperbolic materials, is significant in obtaining efficient radiative heat transfer. this paper investigates the influence of optical axes'orientations and thickness on the near-field radiative heat flux between graphite films, and takes an analysis of the underlying mechanism. as optical axes parallel to the energy flow direction, conventional non-resonant hyperbolic modes have a dominant contribution to the radiative heat transfer. for optical axes perpendicular to the energy flow direction, hyperbolic surface plasmon polaritons (hspps) will be excited besides the existence of conventional non-resonant hyperbolic modes. the contribution of hyperbolic modes drops with the film thickness decreasing, however, hspps can couple with high-k electromagnetic waves, leading to a higher radiative heat flux than that of counterpart bulks. for bulk graphites, the configuration with optical axes parallel to the energy flow direction has a higher radiative heat flux when the gap distance is shorter than 170 nm. however, when the thickness decreases to tens of nanometers, the other configuration may support a more efficient radiative heat exchange. © 2018, science press. all right reserved.
issn号：0253-231x
是否译文：否
发表时间：2018-01-01
合写作者：shen, jia-dong,宣益民
通讯作者：刘向雷