原子能科学技术Issue(7)：1200-1207,8.DOI:10.7538/yzk.2015.49.07.1200
基于激光多普勒测量的6×6棒束间湍流流动研究
Laser Doppler Measurement on Turbulent Flow in 6 × 6 Rod Bundles
摘要
Abstract
The experiment investigation on the turbulent flow in a 6 × 6 rod bundles was conducted with three‐dimensional laser Doppler velocimetry (LDV ) . Five cases were selected to carry out the experiments at the Re ranging from 6.6 × 103 to 7.03 × 104 ,in which the geometry of the 6 × 6 rod bundles was used to simulate the layout of two adjacent fuel assemblies .There are two LDV measuring positions in the experiment . One is the side view of the experiment facility w here the axial velocity and turbulence intensity at different distances from grid spacer were obtained . The other measuring position is at outlet of the rod bundle w here three‐dimensional velocity distribution and Reynolds stress distribution were measured .By comparing the results at different Re , the influence of Re on the experiment was analyzed .The low Reynolds number effect is found with Re=6.6 × 103 .关键词
激光多普勒测速装置/6×6棒束/三维流场/雷诺数效应Key words
laser Doppler velocimetry/6 × 6 rod bundles/three-dimensional flow field/Reynolds number effect分类
能源科技引用本文复制引用
俞洋,汪昊楠,于楠,熊进标,傅孝良,程旭,杨燕华..基于激光多普勒测量的6×6棒束间湍流流动研究[J].原子能科学技术,2015,(7):1200-1207,8.基金项目
国家科技重大专项资助项目 （）
