Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020WR028975 |
Uncertainty quantification and global sensitivity analysis for transient wave propagation in pressurized pipes | |
Xun Wang | |
2021-03-12 | |
发表期刊 | Water Resources Research |
出版年 | 2021 |
英文摘要 | Accurate simulation of pipe transient wave is crucial for the design, reliability assessment, and defect detection of water supply systems. However, this is a difficult task since the wave propagation media in pipeline systems are often highly complex and involve a range of uncertainties. Experimental data show that key parameters such as valve closure time, wave speed, and pipe material coefficients are strongly uncertain and stochastic that may vary in a wide range. To analyze the transient behavior in such complex environments, surrogate models are built to realize the fast computation of uncertainty propagation. Three surrogate modeling methods, i.e., the polynomial‐chaos‐expansion, ordinary‐Kriging, and polynomial‐chaos‐Kriging, are tested and compared in terms of transient wave forecast accuracy. The global sensitivity is then analyzed via the Sobol index method, by which the most influential uncertainty sources on various transient signal features are identified. This article is protected by copyright. All rights reserved. |
领域 | 资源环境 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/318579 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | Xun Wang. Uncertainty quantification and global sensitivity analysis for transient wave propagation in pressurized pipes[J]. Water Resources Research,2021. |
APA | Xun Wang.(2021).Uncertainty quantification and global sensitivity analysis for transient wave propagation in pressurized pipes.Water Resources Research. |
MLA | Xun Wang."Uncertainty quantification and global sensitivity analysis for transient wave propagation in pressurized pipes".Water Resources Research (2021). |
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