纳米流体核态沸腾的机理探讨及数值模拟

Mechanistic Modelling of Nucleate Boiling of Nanofluids

本文以纳米流体核安全应用为背景,综合分析了纳米流体核态沸腾实验研究中发现的共同现象;对这些共同现象所涉及的物理机理进行分析;并探讨了建立纳米流体核态沸腾传热理论模型的可行性及需要解决的关键问题;最后以现有理论模型为基础,通过数据拟合建立了纳米流体核态沸腾的理论模型,模型计算结果与文献中的实验数据具有较好的一致性。

Nanofluids have been proved to be promising coolants for nuclear applications.In this study,the common findings of most experimental studies of nucleate boiling of nanofluids were summarized and the underlying mechanisms were discussed.The feasibility and key issues when developing a mechanistic model for nucleate boiling of nanolfuids are also discussed.Finally,a phenomenal model was developed based on the experimental data available in the literature and satisfactory agreement was obtained.