Design of a pump-turbine using a quasi-potential flow approach, mathematical optimization and CFD

29th IAHR Symposium on Hydraulic Machinery and Systems

Pochylý, F.^1 ; Rudolf, P.^1 ; Štefan, D.^1 ; Moravec, P.^1 ; Stejskal, J.^1 ; Skoták, A.^2

V. Kaplan Department of Fluid Engineering, Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, Brno

61699, Czech Republic^1

KD Blansko Engineering, a.s. apkova 2357/5, Blansko

678 01, Czech Republic^2

关键词: Design features;    Mathematical optimizations;    Model testing;    Operating ranges;    Particle swarm optimization method;    Preliminary design;    Pump-turbines;    Quasi potentials;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/240/7/072043/pdf
DOI  :  10.1088/1755-1315/240/7/072043

来源: IOP

【 摘 要 】

Design of a pump turbine (ns = 135) is carried out using a very fast quasi-potential flow approach for the preliminary design. Theory behind this novel method is presented and its advantages discussed. Further finetuning is performed by coupling of CFD (ANSYS CFX) and particle swarm optimization method. The final design features suppression of the vortex rope over relatively wide turbine operating range. Simulations are verified by model testing in hydraulic laboratory.