Computational Fluid Dynamics (CFD) for turbines
Design of the hydraulics for a Kaplan residual water turbine
- maximum flow QMax=1.5m³/s
- minimum flow QMin=0.8m³/s
- specific speed nq=300U/min
- diameter D=0.65m
- 7-pole generator
Numerische Simulation Einlaufstruktur Kaplan-Z-Turbine
- Fallhöhe Hmax = 22,50 m
- Max. Durchfluss Qmax = 14 m³
- Drehzahl n = 375 rpm
- Ziel: Optimierung Strömungsverluste und Kraftfluktuationen im Bereich der Leitbleche/Maschinenwelle
CFD calculations for a hydro power plant
3 parallel EOS-700 bulb turbines (with one fixed and one variable blade position, nominal diameter 700 mm)
Development of new turbine hydraulics for a hydro power plant
Based on the calculation results of the project “CFD calculations for a hydro power plant” new, semi-regulated Kaplan turbine hydraulics for an EOS-700 turbine were developed.
Development of hydraulics for a vertical Kaplan turbine
- maximum flow Qmax = 16 m³/s
- nominal head Hdesign = 3 m
- nominal speed n = 115 U/min
Development of hydraulics for a Francis turbine with nq=66
- The runner hydraulics is based on approaches determined by SIERVO and THOMANN.
- The blade profiles base on the 4-digit NACA profile NACA-0006.
- Comparison of the efficiencies of different runner blades.
Redesign of hydraulics for a Kaplan turbine
- Basic design, one-dimensional, on 6 partial flow turbine wheels
- Starting geometry defined by means of the Scholz-Czibere procedure
- Definition of blade and profile length by means of Thomann`s references
Pelton turbine: distribution pipeline & cup geometry
- Geometry development
- Optimisation cup geometry
- Optimisation of jet quality
