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

Effect of riblets on nonlinear disturbances in the boundary layer

Valery Chernoray (Institutionen för tillämpad mekanik) ; V.V. Kozlov ; Lennart Löfdahl (Institutionen för tillämpad mekanik) ; G.R. Grek ; H.H. Chun
Thermophysics and Aeromechanics Vol. 13 (2006), 1, p. 67-74.
[Artikel, refereegranskad vetenskaplig]

Results of experimental investigations of the nonlinear stage of sinusoidal and varicose instability of a streaky structure, which leads to multiplication of streaky structures and origination of coherent structures (such as Λ-structures), are presented. Riblets suppress the intensity of streaky structures, stabilize the flow against the development of the secondary high-frequency instability of streaky structures, and, for this reason, delay spatial turbulization of the flow. The results of these investigations can be useful for understanding the flow structure in such situations and for possible controlling of the coherent structures aimed at flow stabilization



Denna post skapades 2006-10-11. Senast ändrad 2017-09-14.
CPL Pubid: 22738

 

Läs direkt!


Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för tillämpad mekanik (1900-2017)

Ämnesområden

Strömningsmekanik

Chalmers infrastruktur