- Tytuł:
- Gurney flap and T-strip alternativesin application to typical aircraft steer surface
- Autorzy:
- Sieradzki, A.
- Powiązania:
- https://bibliotekanauki.pl/articles/247018.pdf
- Data publikacji:
- 2018
- Wydawca:
- Instytut Techniczny Wojsk Lotniczych
- Tematy:
-
CFD
steer
stabilizer
Gurney flap
T-strip
stabilizator
listwa Gurneya - Opis:
- Classic Gurney flap and double Gurney flap (called T-strip) are well-researched trailing edge modifications used in aerospace engineering. However, one of the inevitable effects of their use is the aerodynamic drag increase at low lift conditions, concerned as the major drawback of these solutions. This article presents Gurney flap and T-strip passive alternatives, which guarantee similar advantages in terms of e.g. lift enhancement, but without significant drag increase. Their aerodynamic analysis was performed on the application case of a typical symmetrical aircraft stabilizer with movable steer. Both solutions, consisting of plates nearly parallel to the direction of flow, were modelled as two-dimensional cases and CFD calculations were performed for specified range of angles of attack and steer deflections. Obtained aerodynamic characteristics allowed assessing the influence of selected modifications on the stabilizer effectiveness, as well as on hinge moment characteristics. The flow pattern changes in the presence of analysed devices were also investigated. In this way, performed analysis provided valuable information about the advantages and disadvantages of using of such devices in comparison to classic Gurney Flap and double Gurney flap. The results showed that using proposed solutions gives the possibility of significant reduction of the aerodynamic drag of the whole stabilizer at low lift conditions, while still maintaining favourable lift characteristics.
- Źródło:
-
Journal of KONES; 2018, 25, 1; 347-354
1231-4005
2354-0133 - Pojawia się w:
- Journal of KONES
- Dostawca treści:
- Biblioteka Nauki
Artykuł