Validation of actuator disc circulation distribution for unsteady virtual blades model

Kusyumov, A.N., Kusyumov, S.A., Mikhailov, S.A. and Barakos, G.N. (2021) Validation of actuator disc circulation distribution for unsteady virtual blades model. Theoretical and Applied Mechanics Letters, 11(6), 100305. (doi: 10.1016/j.taml.2021.100305)

Abstract

The actuator disc method is an engineering approach to reduce computer resources in Computational Fluid Dynamics (CFD) simulations of helicopter rotors or aeroplane propellers. Implementation of an actuator disc based on rotor circulation distribution allows for approximations to be made while reproducing the blade tip vortices. Radial circulation distributions can be formulated according to the nonuniform Heyson-Katzoff “typical load” in hover. In forward flight, the nonuniform disk models include “azimuthal” sin and cos terms to reproduce the blade cyclic motion. The azimuthal circulation distribution for a forward flight mode corresponds to trimmed conditions for the disk rolling and pitching moments. The amplitude of the cos harmonic is analysed and compared here with presented in references data and CFD simulations results.

• Item Type: Articles
• Additional Information: Work of Russian coauthors was supported by the grant "FZSU-2020-0021" (No. 075-03-2020-051/3 from 09.06.2020) of the Ministry of Education and Science of the Russian Federation.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Barakos, Professor George
• Authors: Kusyumov, A.N., Kusyumov, S.A., Mikhailov, S.A., and Barakos, G.N.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• Journal Name: Theoretical and Applied Mechanics Letters
• Publisher: Elsevier
• ISSN: 2095-0349
• Published Online: 23 November 2021
• Copyright Holders: Copyright © 2021 The Authors
• First Published: First published in Theoretical and Applied Mechanics Letters 11(6): 100305
• Publisher Policy: Reproduced under a Creative Commons License