THERMAL RADIATION IN COMPLEX HEATER STRUCTURE WITH NONHOMOGENEOUS PARTICIPATING MEDIA

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THERMAL RADIATION IN COMPLEX HEATER STRUCTURE WITH NONHOMOGENEOUS PARTICIPATING MEDIA

Li Benwen(Thermal Engineering Department,Northeastern University,Shenyang 110006)Liu Rixin(Institute of ChemicalMetallurgy, Academia Sinica,Beijing 100080)Ning Baolin(Thermal EngineeringDepartment, NortheasternUniversity, Shenyang 110006)

Online:1995-06-25 Published:1995-06-25

复杂炉型内有非均质参与的辐射换热

李本文,刘日新,宁宝林

东北大学!沈阳110006,中国科学院化工冶金研究所!北京100080,东北大学!沈阳110006

Abstract

Abstract: This paper presents the uniform deterministic sampling method for studying the radiative heat transfer in complex heater structures with anisotropical media. By using uniform sampling instead of random sampling in radiation, this new approach is superior to the currently used Monte Carlo method in accuracy, convergence, speed and computer cost.

摘要： <正>对辐射换热的数值计算,段法(Zone Method,又称区域法)和Monte Carlo法的应用较广。然而段法中辐射热交换因子的计算涉及到频繁的多重积分计算,特别是在有非均质参与或复杂几何系统的情况下,涉及空间积分的段法会更显乏力。Monte Carlo法对复杂几何系统和非均质有较强的适应性。特别是将Monte Carlo法改进后,在相同精度要求下,可以很大程度地减少抽样,从而简化计算。近年来,Taniguchi等和Murty等已部分将Monte Carlo法的随机抽样改为一致确定抽样。

CLC Number:

TQ021

李本文,刘日新,宁宝林. 复杂炉型内有非均质参与的辐射换热 [J]. CIESC Journal.

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