Data for: Numerical Study on reverse flow in U-tubes of UTSG under Natural Circulation

This paper is to set up the computational fluid dynamics model, compared with estimate code RELAP5/MOD3.3, to study the different phenomenons of reverse flow in the inclined and vertical UTSG under natural circulation condition. The methods and the typical results are shown in the research data.本文旨在构建计算流体动力学（Computational Fluid Dynamics，CFD）模型，并与评估程序RELAP5/MOD3.3进行对比，以研究自然循环工况下倾斜式与立式UTSG内的逆流现象差异。本研究数据集包含所用方法与典型结果。