灰气体加权和辐射模型综合评估及分析

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在O2/CO2气氛下,参与性介质的非灰气体辐射特性表现出不同于空气气氛下的特性,因此,非灰气体辐射模型的选择和应用在换热过程中将变得十分重要.基于统计窄谱带模型,本文综合评估近年发展应用较广的灰气体加权和(WSGG)模型.结果表明,几种WSGG模型的预测值总体趋势正确,但仍存在着一定的差别.对于发射率,Dorigon等(2013 Int.J.Heat Mass Transfer 64 863)和Bordbar等(2014 Combust.Flame 161 2435)的WSGG模型与基准模型符合较好,相对
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