Vol.10, No.2, May 2021.                                                                                                                                                                                    ISSN: 2217-8309

                                                                                                                                                                                                                         eISSN: 2217-8333

TEM Journal

TECHNOLOGY, EDUCATION, MANAGEMENT, INFORMATICS

Association for Information Communication Technology Education and Science

Development of the Wind Tunnel CFD Model for Clarifying Rotor Blade Airfoil Unsteady

Aerodynamic Researches

Oleg E. Kirillov, Ruslan M. Mirgazov, Yuri M. Ignatkin, Sergey G. Konstantinov, Pavel V. Makeev, Mikhail Yu. Buntov

© 2021 Mikhail Yu. Buntov, published by UIKTEN. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. (CC BY-NC-ND 4.0)

Citation Information: TEM Journal. Volume 10, Issue 2, Pages 554-562, ISSN 2217-8309, DOI: 10.18421/TEM102-10, May 2021.

Received: 19 November 2020.

Revised:   26 April 2021.
Accepted:  30 April 2021.
Published: 27 May 2021.

Abstract:

A computational model of a wind tunnel (WT) with a special experimental rig has been developed directly for studying unsteady aerodynamic characteristics of a wing section with a helicopter blade profile. The model was constructed using CFD (Computational Fluid Dynamics) methods based on the URANS approach (Unsteady Reynolds Averaged Navier Strokes Equations). Therefore, the aerodynamic characteristics of the airfoil can be determined, taking into account influence of the WT walls such as walls perforation and various configurations of the experimental rig. Simulation of the flow around the wing section with the SC1095 airfoil in steady and unsteady settings is performed. The flow features in the working section of the WT and the experimental rig are analyzed. For a particular case, the calculation method was validated in a 2D formulation on the basis of available experimental data. The developed model can be used to refine the methods of processing experimental data, taking into account the individual characteristics of the WT and the experimental rig configuration.

Keywords –aerodynamic characteristics; CFD method; helicopter blade airfoil; unsteady flow; wind tunnel.

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