强辐照下陶瓷泡沫骨架内的辐射能量传输机理研究  

Study on Radiative Transfer in Ceramic Struts under High Irradiation Beam

作　　者：李洋 陈红伟 夏新林[2] 谈和平[2] LI Yang;CHEN Hong-Wei;XIA Xin-Lin;TAN He-Ping(College of Petroleum Engineering,Liaoning Petrochemical University,Fushun 113001,China;School of Energy Science and Engineering,Harbin institute of Technology,Harbin 150001,China)

机构地区：[1]辽宁石油化工大学石油天然气工程学院,抚顺113001 [2]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《工程热物理学报》2021年第8期2068-2071,共4页Journal of Engineering Thermophysics

基　　金：国家自然科学基金青年项目(No.52006094);辽宁省教育厅科学研究经费项目(No.L2020046);辽宁石油化工大学引进人才科研启动基金资助(No.2019XJJL-027,No.2020XJJL-006)。

摘　　要：当泡沫材料直接受强光束(如聚集太阳能)照射时,准确描述材料内的热辐射传输过程成为传热模拟的关键。本文数值研究了真实陶瓷泡沫骨架在强辐照下的容积性辐射传输规律。采用离散坐标法求解了半透明氧化铝陶瓷骨架内部的辐射传输,获得了辐射能量的传递、吸收规律。研究表明,辐射在陶瓷骨架内的容积输运本质上表现为散射和吸收两种行为的竞争结果;随着波长的增加,氧化铝半透明骨架吸收的辐射能量逐渐增多。Once the foam materials are irradiated by a high beam,such as concentrated solar radiation,it is critical for the heat transfer simulation to characterize the thermal radiation transfer accurately.This study simulate the volumetric radiative heat transfer inside a real ceramic strut under high irradiation beam.A Discrete Ordinate Method is used to model the radiative transfer in an alumina ceramic strut.The transmission and absorption of radiative energy are obtained.The results show that the volumetric transfer inside the semitransparent strut relies on competition of scattering and absorption behaviors.As the wavelength increases,the radiation absorption of alumina ceramic strut is enhanced.

关 键 词：辐射传输 陶瓷泡沫 骨架 半透明 离散坐标法 

分 类 号：TK124[动力工程及工程热物理—工程热物理]