Numerical analysis of supercritical water heat transfer in horizontal circular tube

作者：Zhang, Bo; Shan, Jianqiang^*; Jiang, Jing

来源：Progress in Nuclear Energy, 2010, 52(7): 678-684.

DOI：10.1016/j.pnucene.2010.03.006

• Supercritical water reactor
• Horizontal
• Heat transfer deterioration
• Buoyancy

Heat transfer is numerically investigated of supercritical water for three-dimensional horizontal flows in uniformly heated tube. Three epsilon-type turbulence models are tested and the numerical results are compared with experimental data, and the criteria for onset of buoyancy effect and heat transfer deterioration are analyzed. The results show that: (1) the standard k-epsilon turbulence model with enhanced wall treatment is recommended; (2) the quantity Gr/Re-2.7 gives a capacity to predict the buoyancy effect onset; and (3) correlations developed by Styrikovich et al. and Yamagata et al. can predict the onset of heat transfer deterioration for top and bottom surface, respectively.

• 出版日期2010-9
• 单位西安交通大学