Modern industries are using CAD models for the accurately representation of geometry for designing and manufacturing of turbines. The CAD model provide a more realistic analysis of performance of the product, this task included dimensional measurement and geometric modeling. This paper presented the procedure for how to achieve CAD model of turbine blade. The method discussed here is the latest...

This paper presents a combined blade element (BE), computational fluid dynamics (CFD) method for performance analysis and optimization of ducted turbines. The model is similar to standard blade element momentum theory, except that CFD replaces the momentum equation for determining the induction factors. This eliminates many assumptions used in applying the typical blade element momentum (BEM) t...

Previous experimental and computational work has demonstrated that the geometry of the impeller has a significant effect on the mixing performance of continuous powder mixers. In particular, different blade patterns using either all blades pushing the powder forward (‘forward pattern’) are less effective than patterns where some of the blades push the powder backwards (‘alternate pattern’). In ...

The effect of the blade tip geometry of a high pressure gas turbine is studied experimentally and computationally for high speed leakage flows. For this purpose two simplified models are constructed, one models a flat tip of the blade and the second models a cavity tip of the blade. Experimental results are obtained from a transonic wind tunnel to show the static pressure distribution along the...

This paper describes a blade geometry optimization method for wind turbine rotors in which considerations are given to aerodynamics, structures, noise, and cost. An existing computer program named PROPGA, which is a genetic-algorithm based optimization method for wind turbines, provided part of the foundation for this work. The objective was to develop and implement structures and costs modelin...

Following a comparative study on shape morphing and adaptive systems to improve rotorcraft efficiency, the Green Rotorcraft consortium has selected the Gurney flap technology as demonstrator of a smart adaptive rotorblade within the Clean Sky Joint Technology Initiative [1]. The aim of such a system is to actively increase helicopter overall performance by improving lift and alleviating static ...

The goal of this project is to report on some computational investigations about the return flow passages. The return flow channel provides the connection and carries the flow between two stages of a multistage centrifugal compressor. Of course, deswirl vanes are indispensable between the inlet and outlet section, because usually the inlet flow angle, which comes from the impeller, is 70◦ − 75◦...