Delayed Detached-Eddy Simulation of Shock Buffet on Half Wing-Body Configuration



Sartor, Fulvio and Timme, Sebastian ORCID: 0000-0002-2409-1686
(2017) Delayed Detached-Eddy Simulation of Shock Buffet on Half Wing-Body Configuration. In: 22nd AIAA Computational Fluid Dynamics Conference, 2015-6-22 - 2015-6-26, Dallas, TX.

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Abstract

© 2015, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved. This paper presents a numerical study of the transonic flow over a half wing-body configuration representative of a large civil aircraft. The Mach number is close to cruise conditions, while the high angle of attack causes massive separation on the suction side of the wing. Results indicate the presence of shock-wave oscillations inducing unsteady loads which can cause serious damage to the aircraft. Transonic shock buffet is found. Based on preliminary simulations using a baseline grid, the region relevant to the phenomenon is identified and mesh adaptation is applied to significantly refine the grid locally. Then, time-accurate Reynolds-averaged Navier-Stokes and delayed detached-eddy simulations are performed on the adapted grid. Both types of simulation reproduce the unsteady flow physics and much information can be extracted from the results when investigating frequency content, the location of unsteadiness and its amplitude. Differences and similarities in the computational results are discussed in detail and also analysed with respect to recent experimental data.

Item Type: Conference or Workshop Item (Unspecified)
Depositing User: Symplectic Admin
Date Deposited: 08 Jun 2017 07:42
Last Modified: 15 Mar 2024 08:59
DOI: 10.2514/1.J055186
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3007869