當(dāng)高溫和低溫?zé)嵩吹拈g距小于熱輻射特征波長時,輻射換熱特性發(fā)生很大變化,此時電磁波的干涉效應(yīng)和光子隧穿效應(yīng)尤為顯著。經(jīng)典的宏觀輻射傳輸理論基于幾何光學(xué),忽略了光的干涉效應(yīng)。目前的研究結(jié)果表明,間距為納米尺度的輻射換熱量比斯忒潘·玻爾茲曼定律的預(yù)測值高出約5⁶個數(shù)量級。本文結(jié)合有效介質(zhì)理論,分析了具有梯度折射率的各向異性多層平行平板結(jié)構(gòu)的近場輻射換熱。利用此方法,本文以碳化硅、二氧化硅和鋁為對象,分析了不同結(jié)構(gòu)（如平面-粗糙表面、粗糙表面-粗糙表面）的近場輻射換熱,并與平行平板結(jié)構(gòu)作對比。以漲落耗散理論為基礎(chǔ),結(jié)合麥克斯韋方程組和并矢格林函數(shù),近場輻射換熱熱流得以求解。借助各平板的表面導(dǎo)納,可以求解每個交界面上的s偏振和p偏振的反射系數(shù)和折射系數(shù)。為了驗證計算結(jié)果的準確性,本文對各向異性多層介質(zhì)間的近場熱流作了收斂性檢驗。研究結(jié)果表明,由于粗糙效應(yīng)的影響,碳化硅和二氧化硅粗糙表面間的近場換熱得到加強,而鋁粗糙表面的近場換熱被微弱抑制。除粗糙表面平行平板結(jié)構(gòu)之外,本文還計算了粗糙表面-平板之間的近場換熱。研究發(fā)現(xiàn),二氧化硅粗糙表面-平板結(jié)構(gòu)的近場換熱略強于粗糙表面之間。... 

【文章來源】：哈爾濱工業(yè)大學(xué)黑龍江省 211工程院校 985工程院校

【文章頁數(shù)】：84 頁

【學(xué)位級別】：碩士

【文章目錄】：
Abstract
摘要
Nomenclature
Chapter 1.Introduction
    1.1.Research background and significance
    1.2.Recent research in near-field radiative heat transfer
        1.2.1.Radiative heat transfer between nanoparticles
        1.2.2.Near-field radiative heat transfer between nanoparticles and semi-infinite media
        1.2.3.Near-field radiation heat transfer between parallel plates
        1.2.4.Near-field radiation heat transfer and its applications
    1.3.Outline
Chapter 2.Fundamentals and Theoretical Background of Near Field Radiative Heat Transfer
    2.1.Electromagnetic surface waves
        2.1.1.Surface plasmon and phonon polaritons
        2.1.2.Evanescent wave
    2.2.Fluctuation dissipation theory
    2.3.Maxwell's equations and dyadic green's functions
    2.4.Dielectric function model
        2.4.1.Drude model for metals and semiconductors
        2.4.2.Lorentz model for dielectrics
    2.5.Summary
Chapter 3.Near Field Radiative Heat Transfer Between Parallel Plates with Flat Surface
    3.1.Local density of electromagnetic state
    3.2.Near-field radiation between two semi-infinite media
        3.2.1.Influence of temperature and gap distance between plates in NFRHT
        3.2.2.Propagation and evanescent waves in radiative heat transfer
    3.3.Radiative heat transfer coefficients of parallel plate systems
    3.4.Anisotropic optics in thin films
    3.5.Validation of proposed method
        3.5.1.Three layer Structure: Air/Si NWs/Si Substrate
        3.5.2.Four layer structure: Air/D-Si NWs/Si Substrate/Air
        3.5.3.Hyperbolic Metamaterials
    3.6.Anisotropic multi-layer coupling
        3.6.1.Characteristics of anisotropic multi-layer structure
    3.7.Summary
Chapter 4.Near Field Radiative Heat Transfer Between Parallel Plates with Rough Surface
    4.1.Effective medium theory
    4.2.Geometry of random rough surface
    4.3.Characteristics of radiative heat transfer with rough surface
        4.3.1.Convergence test for anisotropic multilayer structure
        4.3.2.LDOS of flat and rough surface material
        4.3.3.Near-field radiative heat transfer between different surface material
        4.3.4.Radiative heat transfer as a function of vacuum gap for different surfaces
    4.4.Summary
Conclusion
結(jié)論
References
Acknowledgement


【參考文獻】：
期刊論文
[1]隔熱板對近場輻射影響的研究[J]. 谷偉,唐桂華,陶文銓.  工程熱物理學(xué)報. 2014(01)
[2]球形粒子的近場輻射換熱研究[J]. 韓茂華,梁新剛.  工程熱物理學(xué)報. 2007(01)
[3]球形微粒子近場輻射換熱研究[J]. 黃勇,梁新剛.  工程熱物理學(xué)報. 2004(02)



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