Abstract
In this paper the process of determining semi-empirical coefficients for three dynamic stall models is demonstrated using Computational Fluid Dynamics (CFD). Results of the models are then evaluated against two-dimensional Unsteady Reynolds Averaged Navier-Stokes (URANS) and it is seen that the models can capture unsteady aerodyanmic nonlinearities. This work is then extended to model separated flow and dynamic stall on a finite wing. In order to do this, a correction is applied to the Unsteady Lifting Line Theory (ULLT) using two-dimensional viscous data, which can be obtained either from two-dimensional URANS or a dynamic stall model. The ability to couple ULLT to a dynamic stall model allows for fast unsteady, three-dimensional and nonlinear load predictions, without relying on a vast URANS database. For this reason it is also possible to use the model within aeroelastic calculations.
Original language | English |
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Title of host publication | AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials |
Publisher | American Institute of Aeronautics and Astronautics Inc. (AIAA) |
Edition | 210049 |
ISBN (Print) | 9781624105326 |
DOIs | |
Publication status | Published - 7 Jan 2018 |
Event | AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech Forum - Gaylord Palms , Kissimmee, United States Duration: 8 Jan 2018 → 12 Jan 2018 |
Conference
Conference | AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, AIAA SciTech Forum |
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Abbreviated title | SciTech 2018 |
Country/Territory | United States |
City | Kissimmee |
Period | 8/01/18 → 12/01/18 |