Shape Influence on Wing Flow
https://doi.org/10.21869/2223-1560-2019-23-1-21-30
Abstract
Aerodynamic characteristics of a wingfuselage combination cannot be received by combination of these characteristics used for an isolated wing and an isolated fuselage. It is impossible because a wing and fuselage are under mutual influence at their flow in a combination. This influence considiration can be done in different ways: introduction of influence coefficients of a shape on wing lift characteristics; introduction of discrete whirlwinds causing inductive speeds and increasing a local attack angle; a panel method at which streamline surfaces are replaced with flat panels.
Purpose of this reserach is to study method of body shape influence on wing flow.
Methods. Method of a continuous vortex surface is used for accounting shape influence on wings' aerodynamics. The wing is divided into longitudinal panels and is represented by the system of slanting horseshoe whirlwinds. Load-bearing parts of whirlwinds are located on the beams which are located at identical relative distances from a front edge of a wing. Free whirlwinds descend from load-bearings and are directed on a stream.
Results. The body has cylindrical form and is replaced by ring whirlwinds system which are continuously distributed on its length. The separation of an interface and its turning in vortex plaits is modelled by introduction of additional semi-ring whirlwinds and free whirlwinds descending from them. It is possible to say that free whirlwinds are directed along the body.
Conclusion. Method of speed calculation caused by these vortex systems in wing points was developed. Intensity of wing whirlwinds is calculated from impermeability equation which has normal components of caused speed. It is done taking into account body influence on a wing.About the Authors
E. K. Gamelin
Kaluga Branch of Moscow State Technical University named after N. Eh. Bauman
Russian Federation
Russian Federation
Evgeniy K. Gamelin
2, Bazhenov str., Kaluga, 248000
E. V. Ageeva
Southwest State University
Russian Federation
Russian Federation
Ekaterina V. Ageeva, Candidate of Engineering Sciences, Associate Professor
94, 50 Let Oktyabrya str., Kursk, 305040
References
1. Frolov V.A., Shahov V.G. Raschjot kojefficienta vlijanija formy korpusa na nesushhie svojstva kryla. Voprosy modelirovanija processov gazovoj dinamiki i ajerodinamiki. Mezhvuzov-skij sbornik. Tashkent, 1985, pp. 44-55.
2. Chvatov L.V. Primenenie metoda diskretnyh vihrej k raschjotu stacionarnyh ajerodinamicheskih harakteristik kombinacii krylo-fjuzeljazh. Trudy MAI, 1977, is. 385, pp. 20-25.
3. Shevjakov V.I. Raschjot raspredeljonnyh ajerodinamicheskih harakteristik na trjohmernom letatel'nom apparate panel'nym metodom. Voprosy ajerodinamiki letatel'nyh apparatov i ih chastej. Tem. sb. nauch. tr. Moscow, 1988, pp. 17-26.
4. Burago S.G. Priblizhjonnyj metod raschjota normal'noj sily kombinacii tela vrashhenija s krylom v srednem polozhenii pri bol'shih uglah ataki. Trudy MAI, 1979, is. 495, pp. 3-7.
5. Pastuhov A.I. Vihrevoe matematicheskoe modelirovanie obtekanija tel potokom sploshnoj sredy. Is. 2. Nelinejnaja vihrevaja teorija nesushhej poverhnosti. Moscow, 1994, 66 p.
6. Pastuhov A.I., Galemin E.K. Priblizhjonnyj metod uchjota vlijanija nesushhih, upravlja-jushhih i stabilizirujushhih poverhnostej na ajerodinamiku korpusa letatel'nogo apparata v potoke neszhimaemoj sredy. Vestnik MGTU im. N.Je. Baumana. Seriya: Mashinostroenie. 2000, no.2, pp. 10-25.
7. Pastuhov A.I., Galemin E.K. K raschjotu ajerodinamicheskih harakteristik tonkih kryl'ev s postojannoj po razmahu strelovidnost'ju v neszhimaemom potoke vblizi jekrana. Vestnik MGTU im. N.Je.Baumana. Seriya: Mashinostroenie, 2006, no.2, pp. 3-17.
8. Pastuhov A.I., Galemin E.K.K raschetu ajerodinamicheskih harakteristik tonkih kryl'ev s izmenjajushhimisja po razmahu profiljami v nesimmetrichnom potoke. Vestnik Moskovskogo gosudarstvennogo tehnicheskogo universiteta im. N.Je. Baumana. Seriya: Mashinostroenie, 2001, no. 4, pp. 72.
9. Pastukhov A.I., Galemin Ye.K. To calculation of aerodynamic characteristics of thin wings with constant spanwise sweep in impressible flow near screen. Vestnik Moskovskogo gosudarstvennogo tehnicheskogo universiteta im. N.Je. Baumana. Seriya: Mashinostroenie, 2006, no. 2 (63), pp. 127.
10. Pastuhov A.I., Galemin E.K. K zadache o kryle, dvizhushhemsja vblizi jekranirujushhej poverhnosti. Vestnik Moskovskogo gosudarstvennogo tehnicheskogo universiteta im. N.Je. Baumana. Seriya: Mashinostroenie, 2007, no. 2 (67), pp. 3-8.
11. Galemin E.K. Modelirovanie obtekanija ob#emnogo kryla u jekrana. Internet-zhurnal. Naukovedenie, 2017, vol. 9, no. 2, pp. 60.
12. Pastuhov A.I. Vihrevoe matematicheskoe modelirovanie obtekanija tel potokom sploshnoj sredy, is. 3. Nelinejnaja vihrevaja teorija obtekanija cilindricheskih tel i tel vrashhenija. Moscow, MGTU im. N.Je. Baumana Publ., 1995, 105 p.
Review
For citations:
Gamelin E.K., Ageeva E.V. Shape Influence on Wing Flow. Proceedings of the Southwest State University. 2019;23(1):21-30. (In Russ.) https://doi.org/10.21869/2223-1560-2019-23-1-21-30
Views:
505
Email the author 
Post a Comment 
