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New findings in nuclear power described from Shanghai Jiao Tong University
September 24th, 2010
According to recent research from Shanghai, People's Republic of China, "In this study, a numerical investigation of heat transfer deterioration (HTD) in supercritical water flowing through vertical tube is performed by using six low-Reynolds number turbulence models. All low-Reynolds models can be extended to reproduce the effect of buoyancy force on heat transfer and show the occurrence of localized HTD."
"However, most k-epsilon models seriously over-predict the deterioration and do not reproduce the subsequent recovery of heat transfer. The V2F and SST models perform better than other models in predicting the onset of deterioration due to strong buoyancy force," wrote...
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Source: Energy Weekly News (2010-09-24)