第31卷第2期 2011年6月
核科学与工程
Chinese Journal of Nuclear Science and Engineering
DNB后膜态沸腾传热计算模型
李虹波，陈炳德，赵华，熊万玉
（中国核动力研究设计院空泡物理和自然循环重点实验室，四川成都610041）
Vol.31No.2 Jun.2011
搞要：提出膜态沸聘传热的物理模型，建立相应的数学模型，对DNB后膜态沸鹏传热特性进行分析，通过实验数据确定关系式系数，得到了DNB后膜态沸腾传热计算模型。本文提出的理论计算模型与现有不同工况范围内取得的实验数据和已有计算模型进行了比较分析，并对计算偏差进行了统计计算。比较结果表明，本文的计算结果与实验数据符合较好，且相对于已有计算模型，本文模型具有较广的适用性。针对各系统参数对DNB后膜态沸腾传热的影响，对所提出的理论计算模型进行了研究，所得结果的规律与已有实验研究结果符合。
关键调：膜态沸腾；DNB后沸腾传热；计算模型
中图分类号：TK124
文献标志码：A
文章编号：0258-0918(2011)02-0146-08
Numericalmodel ofpost-DNBfilmboilingheattransfer
LI Hong-bo, CHEN Bing-de, ZHAO Hua, XIONG Wan-yu
(Key Laboratory of Bubble Physics and Natural Cireulation, Nuclear Power Institute of China,
Chengdu of Sichuan Prov, 610041,China)
Abstract:It is proposed in this paper a physical model for the film boiling heat transfer. The corresponding mathematical descriptions are given in details and the heat transfer characteristic of post-DNB film boiling is analyzed. The numerical model of post-DNB film boiling heat transfer is obtained as the empirical value of the coefficient is deter-mined by the experimental data, The numerical model is compared with the experimen-tal data of different parameters and other numerical models, and the statistical devia-tions are calculated. The calculating results of the numerical model in this paper show good agreement with the experimental data, and the numerical model in this paper has comprehensive applicability compared with other numerical models. The effects of ther-mal-hydraulic parameters on the post-DNB film boiling heat transfer have been numeri-cally researched using the numerical model in this paper. The calculating results are as sameastheexperimental results.
Key words:film boiling; post-DNB; boiling heat transfer; numerical model 收稿日期：2010-05-24；修回日期：2011-05-07
作奢简介：李虹波（1980一），男，重庆人，助理研究员，工学博士，现从事反应堆热工水力及两相流动与传热研究工作 146