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首页> 外文期刊>JSME International Journal. Series B, Fluids and Thermal Engineering >Numerical Simulation on Transient Behavior of Reflection Characteristics of Real Surfaces of Metallic Materials
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Numerical Simulation on Transient Behavior of Reflection Characteristics of Real Surfaces of Metallic Materials

机译：金属材料真实表面反射特性瞬态行为的数值模拟

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摘要

Thermal radiation characteristics of real surfaces of metallic materials are strongly affected by surface roughness and existing surface film. In actual industrial and natural environments, the surface state is not stable, and the radiation characteristics change with time. In this paper, we present an idea for modelling such dynamic change in the surface state in an air-oxidation process at high temperatures. Transient behavior of reflection characteristics of real surfaces is described on the basis of an electromagnetic theory of interference and diffraction of radiation. Numerical simulation is performed to reproduce the notable phenomenon of spectrum transition which was found in a previous experimental investigation.
机译：金属材料真实表面的热辐射特性受表面粗糙度和现有表面膜的强烈影响。在实际的工业和自然环境中，表面状态不稳定，辐射特性会随时间变化。在本文中，我们提出了一种对高温空气氧化过程中表面状态的动态变化进行建模的想法。根据电磁干扰和辐射衍射理论，描述了真实表面反射特性的瞬态行为。进行数值模拟以再现在先前实验研究中发现的显着的光谱跃迁现象。

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