TURBOdesign Pumps & Fans
TURBOdesign Suite provides tools to designers to put them in direct control of aerodynamic design to streamline every step of the design process for turbomachinery components.
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TURBOdesign Compressors & Turbines
TURBOdesign Suite provides tools to designers to put them in direct control of aerodynamic design to streamline every step of the design process for turbomachinery components.
Our Compressors and Turbines packages...
TURBOdesign Optima
TURBOdesign Suite provides tools to designers to put them in direct control of aerodynamic design to streamline every step of the design process for turbomachinery components.
TURBOdesign Optima is our automatic optimization package
3D Blade Design
Our turbomachinery design toolkits include one on 3D blade design...
Meanline Design
TURBOdesign Suite provides tools to designers to put them in direct control of aerodynamic design to streamline every step of the design process for turbomachinery components.
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Volute/Scroll Geometries
TURBOdesign Suite provides tools to designers to put them in direct control of aerodynamic design to streamline every step of the design process for turbomachinery components.
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Multi-Objective Optimization
TURBOdesign Suite provides tools to designers to put them in direct control of aerodynamic design to streamline every step of the design process for turbomachinery components.
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The present paper describes the parametric design of a Francis turbine runner. The runner geometry is parameterized by means of a 3D inverse design method, while CFD analyses were performed to assess the hydrodymanic and suction performance of different design configurations that were investigated.
An initial runner design was first generated and used as baseline for parametric study. The effects of several design parameter, namely stacking condition and blade loading was then investigated in order to determine their effect on the suction performance. The use of blade parameterization using the inverse method lead to a major advantage for design of Francis turbine runners, as the three-dimensional blade shape is describe by parameters that closely related to the flow field namely blade loading and stacking condition that have a direct impact on the hydrodynamics of the flow field.
On the basis of this study, an optimum configuration was designed which results in a cavitation free flow in the runner, while maintaining a high level of hydraulic efficiency. The paper highlights design guidelines for application of inverse design method to Francis turbine runners. The design guidelines have a general validity and can be used for similar design applications since they are based on flow field analyses and on hydrodynamic design parameters.
Mehrdad Zangeneh is Founder and Managing Director of Advanced Design Technology and professor of Thermofluids at University College London.
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