[1]韦 伟,翁春生,白桥栋.窄谱带模型在气体辐射中的应用[J].南京师范大学学报(工程技术版),2006,06(03):036-39.
　WEI Wei~,WENG Chunsheng~,BAI Qiaodong~.The Application of Narrow Band Model in Gas Radiation[J].Journal of Nanjing Normal University(Engineering and Technology),2006,06(03):036-39.
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窄谱带模型在气体辐射中的应用
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
06卷
期数:
2006年03期
页码:
036-39
栏目:
出版日期:
2006-09-30

文章信息/Info

Title:
The Application of Narrow Band Model in Gas Radiation
作者:
韦  伟1;  翁春生2;  白桥栋2
1. 江苏海事职业技术学院船舶与机电工程系, 江苏南京211170;
2. 南京理工大学动力工程学院, 江苏南京210094
Author(s):
WEI Wei~1; WENG Chunsheng~2; BAI Qiaodong~2
1.Department of Shipping and Electromechanical Engineering,Jiangsu Maritime Institute,Nanjing 211170,China;2.School of Power Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
关键词:
窄谱带模型;  辐射传热;  光谱吸收率;  光学厚度
Keywords:
narrow band mode; l rad ia tive hea t transfer;  spec tral abso rbab ility;  optica l depth
分类号:
P422.3
摘要:
由于通常情况下视气体介质为透明,所以气体辐射常常被忽略不计.随着气体浓度的增加,气体参与辐射的性能增强,因此准确模拟燃烧中产生的气体辐射特性具有重要的现实意义.在以往的气体辐射换热计算中,均把实际气体假设为灰气体,而使得其辐射特性与波长无关,这大大简化了计算的复杂程度,但同时也降低了计算的准确度.研究了窄谱带模型在气体辐射中的运用,根据气体介质的物理性质,计算了对应各个波长段的辐射强度和穿透率.并将计算结果绘制成曲线图,说明研究细化到气体辐射过程中的每一个波长段.另绘制温度值和烟灰微粒的体积分数改变后的曲线图,并与改变之前的相对应的曲线图进行比较,说明窄谱带模型应用的研究结果符合实际情况.
Abstract:
Genera lly, we account the gas m ed ium transparent, so gas rad ia tion is a lw ay s igno red. A long w ith the increase o f gas consistency, g as is m ore and m ore concerned w ith the radiative hea t transfer, so it is important to sim ulate gas rad ia tion in com bustion conditions. The practica l gas was assum ed as g ray g as w hose radiant cha racte ristic w as independent o f its w av elength. This assum ption can m ake the ca lcu la tion eas ier, but less sm art. The purpose o f this d isserta tion is to study the application of narrow band m ode l on gas radiation. The d isserta tion ca lcu la tes the spec tral intensity and transm ittance a long the wave leng th, using narrow band m ode ,l acco rd ing to the phys ica l property. The disse rtation plo ts curv es acco rd ing to the output pa rame ter, illustrates the fine o f the study. The dissertation also p lots curves after chang ing the temperature or the volum e fraction of soo t, and com pares w ith the one before changed, wh ich ind icates that the study o f app lication of Narrow B andM ode l is in acco rdance w ith the practice.

参考文献/References:

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相似文献/References:

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　ZHANG Min,HUANG Qinghong.Combined Radiation and Conduction Heat Transfer Calculations Using Unstructured Grid[J].Journal of Nanjing Normal University(Engineering and Technology),2005,05(03):005.

备注/Memo

备注/Memo:
作者简介: 韦  伟( 1980-) , 女, 硕士研究生, 主要从事系统仿真的学习与研究. E-m ail:jueye@i 126. com
通讯联系人: 翁春生( 1964-) , 教授, 博士生导师, 主要从事工程热物理等方面的教学与研究. E-ma il:w eng@ m ail. njnst. edu. cn
更新日期/Last Update: 2013-04-29