Simple multiple reference frame for high-order solution of hovering rotors with and without ground effect
| Autor: | Panagiotis Tsoutsanis, Antonis F. Antoniadis, Paulo Augusto Strobel Freitas Silva |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
OGE
0209 industrial biotechnology Finite volume method Computer science Mathematical analysis Aerospace Engineering Context (language use) Thrust 02 engineering and technology Aerodynamics Solver 01 natural sciences Frame of reference 010305 fluids & plasmas Ground effect (aerodynamics) High-order methods 020901 industrial engineering & automation Rotorcraft 0103 physical sciences Ground effect IGE CFD Reference frame |
| Zdroj: | Aerospace Science and Technology. 111:106518 |
| ISSN: | 1270-9638 |
| DOI: | 10.1016/j.ast.2021.106518 |
| Popis: | In the present work, the aerodynamic performance of the Caradonna and Tung and S-76 in hover were investigated using a simplified concept of multiple reference frame (MRF) technique in the context of high-order Monotone Upstream Centred Scheme for Conservation Laws (MUSCL) cell-centred finite volume method. In the present methodology, the frame of reference is defined at the solver level by a simple user input avoiding the use of mesh interface to handle the intersections between frames of reference. The calculations were made for both out-of-ground-effect (OGE) and in-ground-effect (IGE) cases and compared with experimental data in terms of pressure distribution, tip-vortex trajectory, vorticity contours and integrated thrust and torque. The predictions were obtained for several ground distances and collective pitch angle at tip Mach number of 0.6 and 0.892. |
| Databáze: | OpenAIRE |
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