Entransy dissipation in a straight tube with lead-bismuth turbulent flow
The entransy dissipation of Lead-Bismuth Eutectic(LBE)in turbulence flow region is numerically investigated.The classical turbulence model with appropriate turbulence Prandtl number can well describe the turbulence heat transfer and flow of LBE.Compared with constant properties condition,the variable properties condition increases heat transfer entransy dissipation and decreases frictional entransy dissipation relatively at the same Reynolds number.Under the same heat transfer area and heat load conditions,different heat flux distributions lead to different entransy dissipation of LBE,the total entransy dissipation of LBE is smaller when the absolute heat flux increases along flow direction than when the absolute heat flux deceases along flow direction,and a slow change of absolute heat flux is superior to a violent change.
Lead-Bismuth Eutectic (LBE) Entransy Dissipation Heat Transfer Turbulence Flow Turbulence Prandtl Number
Jiangfeng Guo Xiulan Huai
Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing,China
国际会议
桂林
英文
1-10
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）