用一般三维数值散射技术模拟尖锐物体的近场辐射传热
Modeling near-field radiative heat transfer from sharp objects using a general 3d numerical scattering technique
摘要：
我们研究了板与有限圆柱体和圆锥体之间的非平衡辐射传热，首次准确地理论预测了三维紧凑物体（包括拐角或尖端）的总传热和空间热流分布。我们发现定性不同的缩放比例的法律在小的分离，并在一个平面/稍微弯曲的对象相比，尖锐的圆锥体表现出局部\emph{minimum}在空间分辨的热通量直接低于尖端。我们开发的方法，其中的散射理论制定的热传递相结合的边界元法计算散射矩阵，可以应用于任意形状的三维物体。
英文摘要：
We examine the non-equilibrium radiative heat transfer between a plate and finite cylinders and cones, making the first accurate theoretical predictions for the total heat transfer and the spatial heat flux profile for three-dimensional compact objects including corners or tips. We find qualitatively different scaling laws for conical shapes at small separations, and in contrast to a flat/slightly-curved object, a sharp cone exhibits a local \emph{minimum} in the spatially resolved heat flux directly below the tip. The method we develop, in which a scattering-theory formulation of thermal transfer is combined with a boundary-element method for computing scattering matrices, can be applied to three-dimensional objects of arbitrary shape.
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