PRESSURE DROP OF PERFORATED ORIFICEIN SINGLE-PHASE FLOW
This study studied the performance of perforated orifices by a new method, namely field synergy theory (FST). Pressure loss was obtained theoretically by connecting flow field and pressure loss, and pointed out the direction to optimization. To validate the theory, pressure loss was measured experimentally under different orifice structures by changing the parameters of porosity, thickness, hole diameter, hole distribution, and etc. Theoretical results showed that pressure loss was determined by the synergy of velocity and velocity gradient over the flow field passing the orifice. Pressure loss increased as the synergy being stronger. To decrease pressure loss, it was the most effective to decrease the synergy with the biggest weight. The comprehensive performance of a perforated orifice is better than a standard one. All the structure parameters should be optimized to improve the performance of a perforated orifice.
Huang Shan-Fang Ma Tai-Yi Yexin Ou-wen YangYan-hua Wang Dong Yan Xiao
School of Nuclear Science and Engineering, Shanghai Jiaotong University Shanghai, China Zhengzhou Branch, China Nuclear Power Engineering Co.Ltd.Zhengzhou, China School of Nuclear Science and Engineering, Shanghai Jiaotong University Shanghai, China School of Energy and Power Engineering, Xian Jiaotong University, Xian, China Nuclear Power Institute of China,Chengdu, China
国际会议
18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)
西安
英文
1-9
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）