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液态碳氢燃料热辐射物性参数反演方法

李栋 艾青 夏新林

李栋, 艾青, 夏新林. 液态碳氢燃料热辐射物性参数反演方法[J]. 航空动力学报, 2012, 27(8): 1712-1717.
引用本文: 李栋, 艾青, 夏新林. 液态碳氢燃料热辐射物性参数反演方法[J]. 航空动力学报, 2012, 27(8): 1712-1717.
LI Dong, AI Qing, XIA Xin-lin. Inverse method investigation of thermal radiation property of liquid hydrocarbon fuel[J]. Journal of Aerospace Power, 2012, 27(8): 1712-1717.
Citation: LI Dong, AI Qing, XIA Xin-lin. Inverse method investigation of thermal radiation property of liquid hydrocarbon fuel[J]. Journal of Aerospace Power, 2012, 27(8): 1712-1717.

液态碳氢燃料热辐射物性参数反演方法

基金项目: 国家自然科学基金 (90816022,51106036)

Inverse method investigation of thermal radiation property of liquid hydrocarbon fuel

  • 摘要: 基于光线跟踪法建立了玻璃-液态碳氢燃料-玻璃3层平板总透射比的正问题模型,给出了反演液态碳氢燃料热辐射物性参数(光谱吸收指数 k 和光谱折射指数 n)的反问题模型,采用Monte-Carlo(M-C)法结合区间逼近法求解.通过将已知文献中庚烷的热辐射物性参数作为“真实值”,采用正问题模型计算总透射比作为“实验测量值”,然后利用反问题模型计算 nk ,并分析实验偏差对反演计算的影响.研究结果表明:①模型反演 k 计算误差的标准差小于0.003%,而 n 的标准差高于21%.②实验偏差对反演计算影响较大,且偏差达到1.0%时个别反演数据明显“失真”.③ k 反演计算误 差的标准差 y 与实验偏差 γ 满足 y =2285.2 γ2- 10.484 γ +0.0037的关系式; n 反演计算误差的标准差受实验偏差影响较小,但偏差导致反演 n 误差均超过20%.

     

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出版历程
  • 收稿日期:  2011-10-12
  • 刊出日期:  2012-08-28

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