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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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Preprints
https://doi.org/10.5194/wes-2020-14
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2020-14
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  24 Mar 2020

24 Mar 2020

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A revised version of this preprint was accepted for the journal WES and is expected to appear here in due course.

Computational Analysis of High Lift Generating Airfoils for Diffuser Augmented Wind Turbines

Aniruddha Deepak Paranjape, Anhad Singh Bajaj, Shaheen Thimmaiah Palanganda, Radha Parikh, Raahil Nayak, and Jayakrishnan Radhakrishnan Aniruddha Deepak Paranjape et al.
  • Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal 576104, Karnataka, India

Abstract. The present study aims to analyze the basic aerodynamic performance of a Diffuser Augmented Wind Turbine (DAWT) using high lift generating airfoils in the diffuser cross-section that encloses the turbine. The study is a Computational Fluid Dynamics (CFD) analysis of the flow across the rotor blades and through the diffuser, which is carried out using Reynolds Averaged Navier-Stokes (RANS) simulations. The rotor blades are modeled as a porous Actuator Disk (AD). Various high-lift generating airfoils are used in the diffuser geometries with additional geometric modifications, such as a flange, are taken into consideration and analyzed for the velocity of the flow at the actuator disk to determine the overall aerodynamic performance of the diffuser shape.

Aniruddha Deepak Paranjape et al.

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Interactive discussion

Status: closed
Status: closed
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Aniruddha Deepak Paranjape et al.

Aniruddha Deepak Paranjape et al.

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Latest update: 01 Dec 2020
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Short summary
This project is a comparative study that takes into consideration, various airfoils from the Selig, Naca and Eppler families and modelling them as diffusers of the wind turbine. The efficiency of the diffuser augmented wind turbine can be enhanced by optimizing the geometry of the diffuser shape. Their subsequent performance trends were then analyzed and the lower performing airfoils were systematically eliminated to leave us with an optimum design.
This project is a comparative study that takes into consideration, various airfoils from the...
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