Analysis of Sub-Atmospheric Pressures during Emptying of an Irregular Pipeline without an Air Valve Using a 2D CFD Model
| Autor: | Oscar E. Coronado-Hernández, Vicente S. Fuertes-Miquel, Daniela Hernández-Sanjuan, Héctor G. Espinoza-Román, Aris D. Hurtado-Misal |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Pipeline (computing)
Geography Planning and Development emptying process Aquatic Science Computational fluid dynamics Biochemistry medicine OpenFOAM Sensitivity (control systems) TD201-500 irregular pipeline Water Science and Technology sub-atmospheric pressure LEMB air pocket Water supply for domestic and industrial purposes business.industry Emptying process MECANICA DE FLUIDOS Stiffness Hydraulic engineering Mechanics Water velocity Sub-atmospheric pressure Irregular pipeline Model simulation Environmental science medicine.symptom Air pocket CFD TC1-978 business |
| Zdroj: | Water, Vol 13, Iss 2526, p 2526 (2021) Water 2021, 13, 2526 Repositorio Institucional UTB Universidad Tecnológica de Bolívar instacron:Universidad Tecnológica de Bolívar RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname Water Volume 13 Issue 18 |
| ISSN: | 2073-4441 |
| Popis: | Studying sub-atmospheric pressure patterns in emptying pipeline systems is crucial because these processes could cause collapses depending on the installation conditions (the underground pipe covering height, type, fill, and pipeline stiffness class). Pipeline studies have focused more on filling than on emptying processes. This study presents an analysis of the following variables: air pocket pressure, water velocity, and water column length during the emptying of an irregular pipeline without an air valve by two-dimensional computational fluid dynamics (2D CFD) model simulation using the software OpenFOAM. The mathematical model predicts the experimental values of the study variables. Water velocity vectors are also analysed within the experimental facility, assessing the sensitivity of the drain valve to different openings and changes in water column length during the hydraulic phenomenon. |
| Databáze: | OpenAIRE |
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