CFD simulation of flow behind overflooded obstacle
| Autor: | Renáta Dulovičová, Zdeněk Chára, Yvetta Velísková, Radoslav Schügerl |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Fluid Flow and Transfer Processes
Cfd simulation 010504 meteorology & atmospheric sciences Mechanical Engineering 0208 environmental biotechnology 02 engineering and technology Hydraulic engineering 01 natural sciences rans models 020801 environmental engineering adv Flow (mathematics) Obstacle numerical simulation velocity profile laboratory flume computational fluid dynamics (cfd) free surface flow bridge TC1-978 Geology 0105 earth and related environmental sciences Water Science and Technology Marine engineering |
| Zdroj: | Journal of Hydrology and Hydromechanics, Vol 66, Iss 4, Pp 448-456 (2018) |
| Popis: | This paper deals with studying of two topics – measuring of velocity profile deformation behind a over-flooded construction and modelling of this velocity profile deformation by computational fluid dynamics (CFD). Numerical simulations with an unsteady RANS models - Standard k-ε, Realizable k-ε, Standard k-ω and Reynolds stress models (ANSYS Fluent v.18) and experimental measurements in a laboratory flume (using ADV) were performed. Results of both approaches showed and affirmed presence of velocity profile deformation behind the obstacle, but some discrepancies between the measured and simulated values were also observed. With increasing distance from the obstacle, the differences between the simulation and the measured data increase and the results of the numerical models are no longer usable. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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