Numerical modelling and flow analysis of a centrifugal pump running as a turbine: Unsteady flow structures and its effects on the global performance

International Journal for Numerical Methods in Fluids

Volumn 65, Issue 5, 2011, Pages 542-562

  Santolaria Morros, Carlos ^a   Fernández Oro, Jesús Manuel ^a   Argüelles Díaz, Katia María ^a  

^a UNIVERSITY OF OVIEDO   (Spain)

Author keywords

Centrifugal pump; CFD on turbomachinery; Global performance; Radial thrust; Running as turbine; Unsteady flow

Indexed keywords

AXISYMMETRIC FLOW; BLADE PASSING FREQUENCY; CENTRIFUGAL MACHINE; CFD ON TURBOMACHINERY; COMMERCIAL CODES; COMMERCIAL DESIGN; CONSTANT HEAD; DATA SETS; EXPERIMENTAL STUDIES; FATIGUE FAILURES; FLOW ANALYSIS; FORCE FLUCTUATIONS; GLOBAL PERFORMANCE; MECHANICAL LOADS; NONSTATIONARY; NUMERICAL METHODOLOGIES; NUMERICAL MODELLING; NUMERICAL MODELS; NUMERICAL STUDIES; OPERATIONAL MODES; PERFORMANCE CURVE; PNEUMATIC PRESSURE PROBE; PRESSURE TAPS; PUMP-TURBINES; RADIAL THRUST; RUNNING AS TURBINE; TURBINE RUNNER; UNSTEADY SIMULATIONS; VOLUTE CASINGS;

AERODYNAMICS; CENTRIFUGAL PUMPS; CENTRIFUGATION; COMPUTATIONAL FLUID DYNAMICS; HYDRAULIC MACHINERY; IMPELLERS; NUMERICAL METHODS; PROBES; PUMPING PLANTS; THREE DIMENSIONAL; TURBINES; TURBULENCE MODELS; UNSTEADY FLOW;

PUMPS;

EID: 78651242286     PISSN: 02712091     EISSN: 10970363     Source Type: Journal    
DOI: 10.1002/fld.2201     Document Type: Article

References (24)

1. Kittredge CP. Centrifugal pumps used as hydraulic turbines. Transactions of the ASME Journal of Engineering for Power 1961; 83:74-78.
2. Knapp RT. Centrifugal pump performance as affected by design features. Transactions of the ASME 1941; 63:241-250.
3. Stepanoff AJ. Centrifugal and Axial Flow Pumps. Wiley: New York, 1957.
4. Shafer LL. Pumps as power turbines. Mechanical Engineering 1982; 101:40-43.
5. Engeda A, Rautenberg M. Performance of centrifugal pumps as hydraulic turbines. Transactions of the 4th ASME International Hydro and Power Fluid Machinery Symposium, Anaheim, CA, vol. 43, 1987.
6. Priesnitz C. Einsatzmöglichkleiten von rückwärtslaufenden Standardkreiselpumpen als Turbinen zur Energierückgewinnung. Pumpen und Verdichter Informationen 1987; 3-12.
7. Shafer L, Agostinelli A. Hydraulic pump in reverse makes good low cost hydroturbine. Power 1981.
8. Thoma D, Kittredge CP. Centrifugal pumps operated under abnormal conditions. Power 1931; 881-884.
9. Swanson MW. Complete characteristics circle diagram for turbomachinery. Transactions of the ASME 1953; 75:816-826.
10. Patterson IS, Martin CS. Effect of specific speed on pump characteristics and hydraulic transients in abnormal zones of operation. Proceedings of the 12th IAHR Symposium, Stirling, 1984; 151-172.
11. Williams AA. The turbine performance of centrifugal pumps: a comparison of prediction method. Proceedings of the Institution of Mechanical Engineers. Part A-Journal of Power and Energy 1994; 208:59-66.
12. Derakhshan S, Nourbakhsh A. Experimental study of characteristic curves of centrifugal pumps working as turbines in different specific speeds. Experimental Thermal and Fluid Science 2008; 32:800-807.
13. Tamm A, Braten A, Stoffel B, Ludwig G. Analysis of a Standard Pump in Reverse Operation Using CFD. Proceedings of the 20th IAHR Symposium, Charlotte, NC, U.S.A., 2000.
14. González J, Fernández Oro JM, Argüelles Díaz KM, Santolaria Morros C. Flow analysis for a double section centrifugal machine in the pump and turbine operation modes. International Journal for Numerical Methods in Fluids 2009; 61:220-236.
15. Fernández J, Santolaria C, Ballesteros R, Blanco E. Test facility of inverse-working pumps for small hydro-power plants. Proceedings of International Congress on Hydropower into de Next Century, Barcelona, Spain, 1995; 657-664.
16. González J, Santolaria C. Unsteady flow structures and global variables in a centrifugal pump. ASME Journal of Fluids Engineering 2006; 128:937-946.
17. Freitas CJ. Journal of fluids engineering editorial policy statement on the control of numerical accuracy. ASME Journal of Fluids Engineering 1993; 115:339-340.
18. Versteeg HK, Malalasekera W. An Introduction to Computational Fluid Dynamics The Finite Volume Method. Longman Scientific & Technical: Essex, 1995.
19. Brennen CE. Hydrodynamics of Pumps. Oxford University Press and CETI Inc: Oxford, 1994.
20. González J, Parrondo J, Santolaria C, Blanco E. Steady and unsteady radial forces for a centrifugal pump with impeller to tongue gap variation. ASME Journal of Fluids Engineering 2006; 128:454-462.
21. González J, Fernández J, Blanco E, Santolaria C. Numerical simulation of the dynamic effects due to impeller-volute interaction in a centrifugal pump. ASME Journal of Fluids Engineering 2002; 124:348-355.
22. Neumann B. The Interaction between Geometry and Performance of a Centrifugal Pump. Mechanical Engineering Publication Ltd.: London, 1991.
23. Croba D, Kueny JL. Numerical calculation of 2D, unsteady flow in centrifugal pumps: impeller and volute interaction. International Journal for Numerical Methods in Fluids 1996; 22:467-481.
24. Shi F, Tsukamoto H. Numerical study of pressure fluctuations caused by impeller-diffuser interaction in a diffuser pump stage. ASME Journal of Fluids Engineering 2001; 123:466-474.