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요약정보
压力管道孔隙泄漏率计算研究 / Study on the Calculation of the Pore Leakage Rate of the Pressure Pipeline
Resource Type
Academic Journal
Authors
王瑶
;
何攀
;
刘才学
;
李朋洲
;
WANG Yao
;
HE Pan
;
LIU Caixue
;
LI Pengzhou
Source
核科学与工程 / Nuclear Science and Engineering
. 42(1):159-166
Subject
压力管道;孔隙;泄漏率;CFD模型
Language
Chinese
ISSN
0258-0918
Online Access
Find it @ DONGA
초록
开展压力管道泄漏监测系统的研制需要在不锈钢管上制作各种尺寸的孔隙,以得到不同的泄漏率,从而建立泄漏定量模型.为此,本文在己知泄漏率的情况下,对不同泄漏率下的不锈钢管道的穿透孔隙尺寸开展计算研究,获取"泄漏率—孔径"关系曲线,为泄漏监测系统的研发提供理论支撑,指导试验件的加工.本文采用了基于CFD方法,针对高温高压(15.5 MPa)下,高速射流伴随有激波(或膨胀波)的现象导致物理量高度非线性的条件,建立计算模型和分析修正方法,获得了"泄漏率—孔径"关系曲线,并通过试验验证了计算结果的准确性,结果表明CFD计算结果误差较小,更能够准确的考虑泄漏孔厚径比、粗糙度带来的影响.
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