The Theoretical Research for the Rotor/Fuselage Unsteady Aerodynamic Interaction Problem
| Autor: | Liu Dawei, Xin Ji, Huang Jun |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | Journal of Aerospace Technology and Management, Vol 8, Iss 3, Pp 281-288 (2016) |
| Druh dokumentu: | article |
| ISSN: | 1984-9648 2175-9146 |
| DOI: | 10.5028/jatm.v8i3.686 |
| Popis: | Based on coupled unsteady panel/free-wake method, a universal analysis model was established, which provides a good prediction for the rotor/fuselage unsteady aerodynamic interaction. Considering the deficiencies of the traditional time-marching rotor free-wake algorithms, notably on stability and efficiency, the CB3D algorithm with 3rd-order accuracy is proposed. For solving the problem that part of the wake vortices may penetrate the fuselage, a “material line” rectification method with 3rd-order accuracy is proposed. An analysis for the model accuracy was then conducted to validate the accuracy of the new model, and a comparison against the available experimental data is performed. The simulated results show a good agreement with these experimental data. With the new model, several simulations are conducted for the typical rotor/fuselage aerodynamic interaction, and the results are analyzed. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
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