Drag reduction of three-dimensional bodies by base blowing with various gas densities.
Phys Rev E
; 102(1-1): 011101, 2020 Jul.
Article
en En
| MEDLINE
| ID: mdl-32795020
ABSTRACT
This study reveals that injecting a light fluid of density ρ_{b} in the recirculating bubble of a bluff body at Re≈6.4×10^{4} has a greater drag reduction potential than blowing fluid of a density greater than or equal to that of the free stream ρ. It is found that the maximum drag reduction scales as (ρ_{b}/ρ)^{-1/6}. This power law combines the ability of the recirculating bubble to diffuse the injected momentum and the effectiveness of the injection to increase the recirculating bubble length.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev E
Año:
2020
Tipo del documento:
Article
País de afiliación:
España