原子能科学技术Issue(4)：660-666,7.DOI:10.7538/yzk.2015.49.04.0660
管道贯穿裂纹泄漏率预测
Prediction of Leakage from Through Pipeline Crack
摘要
Abstract
A code was developed to predict the leakage from through pipeline crack of the leak before break (LBB) ,and various stagnation conditions were considered ,inclu‐ding the subcooled water ,the two‐phase fluid and the superheated steam .Both the crit‐ical and non‐critical flows were studied . The Henry‐Fauske critical flowmodel was revised by a newphase transition point and the pressure drops of friction and turns were modified .The code was verified by comparing with the experimental data of convention‐al straight pipe , artificial crack and naturally occurring crack , which shows a good agreement and the code has a higher precision than the existing codes PICEP and SQUIRT .The influence of crack morphology on LBB leakage was discussed ,including the local roughness ,the global roughness ,the crack open displacement and the number of the corners .Besides ,the dependence of the LBB leakage on stagnation enthalpy and back pressure was investigated .关键词
破前泄漏/泄漏率/裂纹形貌Key words
leak before break/leakage/crack morphology分类
能源科技引用本文复制引用
章静,乔红威,李朋洲,巫英伟,田文喜,秋穗正,苏光辉..管道贯穿裂纹泄漏率预测[J].原子能科学技术,2015,(4):660-666,7.基金项目
教育部创新团队发展计划资助项目 （）
