| 高斯粗糙表面辐射特性的数值研究 |
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| 引用本文： | 蔡九菊,王爱华.高斯粗糙表面辐射特性的数值研究[J].东北大学学报(自然科学版),2011,32(4):529-532. |
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| 作者姓名： | 蔡九菊 王爱华 |
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| 作者单位： | 东北大学,国家环境保护生态工业重点实验室,辽宁,沈阳,110819 |
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| 基金项目： | 国家高新技术研究发展计划项目 |
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| 摘 要： | 采用时域有限差分法和近场-远场变换对两种不同材料的一维微尺度高斯粗糙表面辐射特性进行了数值模拟,并将计算结果与其他方法进行了对比分析.研究结果表明,对于理想导电材料表面,随着均方根粗糙度的增加,其双向反射率的尖峰值逐步减小并最终消失;随着均方根粗糙度与表面关联距离之比的增加,向后反射变得愈加明显;相同表面轮廓特征条件下...
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| 关 键 词： | 双向反射率 高斯粗糙表面 时域有限差分法 麦克斯韦方程 理想导电材料 |
Modeling the Radiative Properties of Gaussian Rough Surfaces |
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| CAI Jiu-ju,WANG Ai-hua.Modeling the Radiative Properties of Gaussian Rough Surfaces[J].Journal of Northeastern University(Natural Science),2011,32(4):529-532. |
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| Authors: | CAI Jiu-ju WANG Ai-hua |
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| Institution: | CAI Jiu-ju,WANG Ai-hua(SEPA Key Laboratory on Eco-Industry,Northeastern University,Shenyang 110819,China.) |
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| Abstract: | The radiative properties of two different materials surfaces with one-dimensional microscale Gaussian roughness were numerically investigated with an FDTD(finite-difference time-domain) method and near-to-far-field transformation.Calculated results were compared with those from other two approaches.The bi-directional reflectivity peak decreased gradually and eventually disappeared with increasing perfectly electric conductor(PEC) surface RMS(root mean square) roughness.The retroreflection became evident as ... |
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| Keywords: | bi-directional reflectivity Gaussian rough surface finite-difference time-domain method Maxwell's equations perfectly electric conductor |
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