CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Generation of perturbations by a localized vibrator in the boundary layer of a nonswept wing

Valery Chernoray (Institutionen för tillämpad mekanik) ; A. Spiridonov ; M. Katasonov ; V. Kozlov
Journal of Applied Mechanics and Technical Physics Vol. 42 (2001), 5, p. 765-772.
[Artikel, refereegranskad vetenskaplig]

Origination and development of perturbations generated by a three-dimensional vibrating surface in the boundary layer on an airfoil with a zero sweep angle is experimentally studied. Surface vibrations were generated by a three-dimensional membrane. It is shown that high-amplitude vibrations of a three-dimensional surface lead to simultaneous formation of two types of perturbations in the boundary layer: quasi-stationary streamwise structures and wave packets accompanying them. The presence of regions with favourable and adverse pressure gradients does not exert a significant effect on evolution of streamwise structures but leads first to attenuation and then to amplification of wave packets.



Denna post skapades 2006-10-11. Senast ändrad 2017-09-14.
CPL Pubid: 22725

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för tillämpad mekanik (1900-2017)

Ämnesområden

Strömningsmekanik

Chalmers infrastruktur