本文主要研究内容
作者(2019)在《高速气流作用下自燃箔片云团的辐射特性计算与实验研究(英文)》一文中研究指出:目的:当自燃箔片云团在空气中扩散时,自燃箔片云团之间存在大量的对辐射的遮挡、吸收和反射作用,并且箔片与空气之间也会发生相互作用,这使得辐射传输计算变得更加复杂。本文旨在计算自燃箔片云团的辐射特性并生成辐射图像。创新点:建立自燃箔片云团的辐射计算模型和燃烧模型,并得到辐射图像和光谱特性曲线。方法:1.针对辐射的传输特点,建立一种基于反向路径采样的辐射计算模型;该模型假设探测器按照辐射的反向均匀向外发射光线,采样统计各光线的路径后,正向计算探测器接收到的光线数量与强度。2.考虑箔片表面的多孔结构对活性金属燃烧反应速率的影响并建立箔片的自燃模型;将计算结果与实验数据进行对比,验证该模型的准确性。3.计算得到箔片云团的光谱分布并生成辐射图像。结论:1.箔片燃烧后温度迅速攀升,并在1.3 s左右达到最大值;随后,温度缓慢下降,并在6s左右下降到接近环境温度。2.箔条云扩散后呈椭圆形,扩散区随着时间的推移逐渐扩大,且亮度中心向后移动。3.箔条云的光谱辐射强度极大点位于波长1.4、1.9、3.1、4.3和8.0μm处,并且在3.1μm时达到最大值。
Abstract
mu de :dang zi ran bo pian yun tuan zai kong qi zhong kuo san shi ,zi ran bo pian yun tuan zhi jian cun zai da liang de dui fu she de zhe dang 、xi shou he fan she zuo yong ,bing ju bo pian yu kong qi zhi jian ye hui fa sheng xiang hu zuo yong ,zhe shi de fu she chuan shu ji suan bian de geng jia fu za 。ben wen zhi zai ji suan zi ran bo pian yun tuan de fu she te xing bing sheng cheng fu she tu xiang 。chuang xin dian :jian li zi ran bo pian yun tuan de fu she ji suan mo xing he ran shao mo xing ,bing de dao fu she tu xiang he guang pu te xing qu xian 。fang fa :1.zhen dui fu she de chuan shu te dian ,jian li yi chong ji yu fan xiang lu jing cai yang de fu she ji suan mo xing ;gai mo xing jia she tan ce qi an zhao fu she de fan xiang jun yun xiang wai fa she guang xian ,cai yang tong ji ge guang xian de lu jing hou ,zheng xiang ji suan tan ce qi jie shou dao de guang xian shu liang yu jiang du 。2.kao lv bo pian biao mian de duo kong jie gou dui huo xing jin shu ran shao fan ying su lv de ying xiang bing jian li bo pian de zi ran mo xing ;jiang ji suan jie guo yu shi yan shu ju jin hang dui bi ,yan zheng gai mo xing de zhun que xing 。3.ji suan de dao bo pian yun tuan de guang pu fen bu bing sheng cheng fu she tu xiang 。jie lun :1.bo pian ran shao hou wen du xun su pan sheng ,bing zai 1.3 szuo you da dao zui da zhi ;sui hou ,wen du huan man xia jiang ,bing zai 6szuo you xia jiang dao jie jin huan jing wen du 。2.bo tiao yun kuo san hou cheng tuo yuan xing ,kuo san ou sui zhao shi jian de tui yi zhu jian kuo da ,ju liang du zhong xin xiang hou yi dong 。3.bo tiao yun de guang pu fu she jiang du ji da dian wei yu bo chang 1.4、1.9、3.1、4.3he 8.0μmchu ,bing ju zai 3.1μmshi da dao zui da zhi 。
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论文详细介绍
论文作者分别是来自Journal of Zhejiang University-Science A(Applied Physics & Engineering)的,发表于刊物Journal of Zhejiang University-Science A(Applied Physics & Engineering)2019年06期论文,是一篇关于箔片云团论文,辐射计算论文,光谱辐射特性论文,活性金属论文,自燃论文,Journal of Zhejiang University-Science A(Applied Physics & Engineering)2019年06期论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自Journal of Zhejiang University-Science A(Applied Physics & Engineering)2019年06期论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。
标签:箔片云团论文; 辐射计算论文; 光谱辐射特性论文; 活性金属论文; 自燃论文; Journal of Zhejiang University-Science A(Applied Physics & Engineering)2019年06期论文;