NUMERICAL SIMULATION OF TRANSIENT FLOW IN STORM SEWERS USING STANDARD AND IMPROVED MCCORMACK SCHEME
This paper describes the results of the first part of the research project which aims at developing a hydraulic model for simulation of unsteady flows in storm sewers ranging from gravity flows to surcharged flows resulting with water outflow on the ground surface and propagation of inundation in t...
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| Format: | Article |
| Language: | English |
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Gdańsk University of Technology
2012-01-01
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| Series: | TASK Quarterly |
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| Online Access: | https://journal.mostwiedzy.pl/TASKQuarterly/article/view/1951 |
| _version_ | 1828283876952244224 |
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| author | MICHAŁ SZYDŁOWSKI JUSTYNA MACHALIŃSKA-MURAWSKA |
| author_facet | MICHAŁ SZYDŁOWSKI JUSTYNA MACHALIŃSKA-MURAWSKA |
| author_sort | MICHAŁ SZYDŁOWSKI |
| collection | DOAJ |
| description |
This paper describes the results of the first part of the research project which aims at developing a hydraulic model for simulation of unsteady flows in storm sewers ranging from gravity flows to surcharged flows resulting with water outflow on the ground surface and propagation of inundation in the flooded area. The paper focuses on the development and assessment of a second-order explicit numerical scheme for unsteady flows in sewers, but only in a single pipe at this moment, without any special elements such as manholes or drop shafts and with no water overflowing problem. The problem of water flow in sewer system pipes is associated with some specific phenomena occurring in conduits during storm events. If the pipes start to be fully filled with water, there is a transition from free surface to pressurized flow. Then, the vice versa effect can be observed. Such transitions are also possible in sewers when the discharge is controlled by control devices, such as gates for example. Moreover, the rapidly varied flow with some hydraulic local effects such as hydraulic jumps or bores can appear during extreme rain episodes. The appropriate modeling techniques have to be applied to solve these problems. The ‘Preissmann slot’ concept is implemented to simulate the pressurized flow. The original and improved McCormack scheme is used for transcritical flow simulation. The calculated results obtained for some benchmark tests are compared with numerical solutions and laboratory measurements published in the technical literature.
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| first_indexed | 2024-04-13T08:52:46Z |
| format | Article |
| id | doaj.art-eded968a2bda40ba9946e37188533d38 |
| institution | Directory Open Access Journal |
| issn | 1428-6394 |
| language | English |
| last_indexed | 2024-04-13T08:52:46Z |
| publishDate | 2012-01-01 |
| publisher | Gdańsk University of Technology |
| record_format | Article |
| series | TASK Quarterly |
| spelling | doaj.art-eded968a2bda40ba9946e37188533d382022-12-22T02:53:26ZengGdańsk University of TechnologyTASK Quarterly1428-63942012-01-01161-2NUMERICAL SIMULATION OF TRANSIENT FLOW IN STORM SEWERS USING STANDARD AND IMPROVED MCCORMACK SCHEMEMICHAŁ SZYDŁOWSKI0JUSTYNA MACHALIŃSKA-MURAWSKA1Gdansk University of Technology, Faculty of Civil and Environmental EngineeringGdansk University of Technology, Faculty of Civil and Environmental Engineering This paper describes the results of the first part of the research project which aims at developing a hydraulic model for simulation of unsteady flows in storm sewers ranging from gravity flows to surcharged flows resulting with water outflow on the ground surface and propagation of inundation in the flooded area. The paper focuses on the development and assessment of a second-order explicit numerical scheme for unsteady flows in sewers, but only in a single pipe at this moment, without any special elements such as manholes or drop shafts and with no water overflowing problem. The problem of water flow in sewer system pipes is associated with some specific phenomena occurring in conduits during storm events. If the pipes start to be fully filled with water, there is a transition from free surface to pressurized flow. Then, the vice versa effect can be observed. Such transitions are also possible in sewers when the discharge is controlled by control devices, such as gates for example. Moreover, the rapidly varied flow with some hydraulic local effects such as hydraulic jumps or bores can appear during extreme rain episodes. The appropriate modeling techniques have to be applied to solve these problems. The ‘Preissmann slot’ concept is implemented to simulate the pressurized flow. The original and improved McCormack scheme is used for transcritical flow simulation. The calculated results obtained for some benchmark tests are compared with numerical solutions and laboratory measurements published in the technical literature. https://journal.mostwiedzy.pl/TASKQuarterly/article/view/1951mathematical modelingnumerical simulationtransient flowstorm sewers |
| spellingShingle | MICHAŁ SZYDŁOWSKI JUSTYNA MACHALIŃSKA-MURAWSKA NUMERICAL SIMULATION OF TRANSIENT FLOW IN STORM SEWERS USING STANDARD AND IMPROVED MCCORMACK SCHEME TASK Quarterly mathematical modeling numerical simulation transient flow storm sewers |
| title | NUMERICAL SIMULATION OF TRANSIENT FLOW IN STORM SEWERS USING STANDARD AND IMPROVED MCCORMACK SCHEME |
| title_full | NUMERICAL SIMULATION OF TRANSIENT FLOW IN STORM SEWERS USING STANDARD AND IMPROVED MCCORMACK SCHEME |
| title_fullStr | NUMERICAL SIMULATION OF TRANSIENT FLOW IN STORM SEWERS USING STANDARD AND IMPROVED MCCORMACK SCHEME |
| title_full_unstemmed | NUMERICAL SIMULATION OF TRANSIENT FLOW IN STORM SEWERS USING STANDARD AND IMPROVED MCCORMACK SCHEME |
| title_short | NUMERICAL SIMULATION OF TRANSIENT FLOW IN STORM SEWERS USING STANDARD AND IMPROVED MCCORMACK SCHEME |
| title_sort | numerical simulation of transient flow in storm sewers using standard and improved mccormack scheme |
| topic | mathematical modeling numerical simulation transient flow storm sewers |
| url | https://journal.mostwiedzy.pl/TASKQuarterly/article/view/1951 |
| work_keys_str_mv | AT michałszydłowski numericalsimulationoftransientflowinstormsewersusingstandardandimprovedmccormackscheme AT justynamachalinskamurawska numericalsimulationoftransientflowinstormsewersusingstandardandimprovedmccormackscheme |