Number of the records: 1
Modelling Flow Phenomena in Pump Station With Overflow
- 1.
SYSNO ASEP 0503344 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Modelling Flow Phenomena in Pump Station With Overflow Author(s) Sedlář, M. (CZ)
Příhoda, Jaromír (UT-L) RID, ORCID
Vyroubal, M. (CZ)Source Title 2019 International Conference on Applied Mathematics, Modelling, Simulation and Optimization : AMMSO 2019. - Lancaster, Pennsylvania : DEStech Publications, 2019 - ISSN 2475-8841 - ISBN 978-1-60595-631-2 Pages s. 204-210 Number of pages 7 s. Publication form Print - P Action 2019 International Conference on Applied Mathematics, Modelling, Simulation and Optimization (AMMSO2019) Event date 21.04.2019 - 22.04.2019 VEvent location Guilin Country CN - China Event type WRD Language eng - English Country US - United States Keywords supercritical free-surface flow ; pump station ; overflow ; CFD ; DDES Subject RIV BK - Fluid Dynamics OECD category Applied mechanics R&D Projects FV30104 GA MPO - Ministry of Industry and Trade (MPO) Institutional support UT-L - RVO:61388998 Annotation The paper deals with the numerical analysis of flow in a complete hydraulic system representing the pump station including the influence of the free water level. Particular attention is paid to the discharge object with overflow, which is characterized by the critical flow across the crown of the overflow wall. All basic calculations were accomplished by means of the commercial software ANSYS CFX and ANSYS Fluent with the SST turbulence model. As the flow in the discharge object represents the most interesting part of the results, additional numerical simulations of flow just inside this object were carried out with the DDES scale resolving simulations. Basic calculations inside the complete pump station passage gave surprisingly steady water level in both the intake and discharge objects. They also provided a good picture of the distribution of water velocity close to the water level and corresponding height of water level above the overflow wall crown. DDES simulations indicated a periodically formed vortex on a water level behind the overflow wall crown with the Strouhal number about 0.3. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2020
Number of the records: 1