期刊
NUCLEAR ENGINEERING AND DESIGN
卷 292, 期 -, 页码 204-212出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.nucengdes.2015.06.012
关键词
-
资金
- Science Foundation of China University of Petroleum, Beijing [2462013YJRC003, 2462015YQ0403]
- CNPq of Brazil [306618/2010-9]
- CAPES of Brazil
- FAPERJ of Brazil
In this paper, the dynamic behavior of pipes conveying gas-liquid two-phase flow was analytically and numerically investigated on the basis of the generalized integral transform technique (Gm). The use of the Gm approach in the analysis of the transverse vibration equation lead to a coupled system of second order differential equations in the dimensionless temporal variable. The Mathematica's built-in function, NDSolve, was employed to numerically solve the resulting transformed ODE system. The characteristics of gas-liquid two-phase flow were represented by a slip-ratio factor model that was devised and used for similar problems. Good convergence behavior of the proposed eigenfunction expansions is demonstrated for calculating the transverse displacement at various points of pipes conveying air-water two-phase flow. Parametric studies were performed to analyze the effects of the volumetric gas fraction and the volumetric flow rate on the dynamic behavior of pipes conveying air-water two-phase flow. Besides, the normalized volumetric-flow-rate stability envelope for the dynamic system was obtained. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据