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首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Radiation element method for transient hyperbolic radiative transfer in plane-parallel inhomogeneous media
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Radiation element method for transient hyperbolic radiative transfer in plane-parallel inhomogeneous media

机译：平面平行非均匀介质中瞬时双曲辐射传递的辐射单元法

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摘要

In this study the, radiation element method is formulated to solve transient radiative transfer with light radiation propagation effect in scattering, absorbing and emitting media with inhomogeneous property. The accuracy of the method is verified by good agreement between the present calculations and Monte Carlo simulations. The sensitivity of the method against element size, ray emission number; and time increment size is examined. The transient effect of radiation propagation is essential in short-pulse laser radiation transport when the input pulse width is not consider ably larger than the system radiation propagation time. The transient characteristics of radiative transfer are investigated in the media subject to collimated laser irradiation and/or diffuse irradiation with temporal Gaussian and/or square profiles. The inhomogeneous profile of extinction coefficient of the medium affects strongly the transient radiative flux divergence inside the medium. [References: 29]
机译：在这项研究中，制定了辐射元素方法，以解决具有不均匀特性的散射，吸收和发射介质中具有光辐射传播效应的瞬态辐射传递。通过当前计算与蒙特卡洛模拟之间的良好一致性，验证了该方法的准确性。该方法对元素尺寸，射线发射数的敏感性;并检查时间增量大小。当输入脉冲宽度不认为大于系统辐射传播时间时，辐射传播的瞬态效应在短脉冲激光辐射传输中至关重要。在准直激光辐照和/或具有时间高斯和/或方形轮廓的漫射辐照的介质中研究了辐射传递的瞬态特性。介质的消光系数的不均匀分布强烈影响介质内部的瞬态辐射通量散度。 [参考：29]

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