Drag reduction of three-dimensional bodies by base blowing with various gas densities

M. Lorite-Díez; J. I. Jiménez-González; L. Pastur; O. Cadot; C. Martínez-Bazán

doi:10.1103/PhysRevE.102.011101

Drag reduction of three-dimensional bodies by base blowing with various gas densities

M. Lorite-Díez
, J. I. Jiménez-González
, L. Pastur
, O. Cadot
, C. Martínez-Bazán

Departamento de Ingeniería Mecánica y Minera
University of Jaen
ENSTA-ParisTech
School of Engineering
University of Liverpool

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

11 Citations (Scopus)

Résumé

This study reveals that injecting a light fluid of density ρb in the recirculating bubble of a bluff body at Re≈6.4×104 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 (ρb/ρ)-16. 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.

langue originale	Anglais
Numéro d'article	011101
journal	Physical Review E
Volume	102
Numéro de publication	1
Les DOIs	https://doi.org/10.1103/PhysRevE.102.011101
état	Publié - 1 juil. 2020
Modification externe	Oui

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10.1103/PhysRevE.102.011101

Contient cette citation

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abstract = "This study reveals that injecting a light fluid of density ρb in the recirculating bubble of a bluff body at Re≈6.4{\texttimes}104 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 (ρb/ρ)-16. 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.",

author = "M. Lorite-D{\'i}ez and Jim{\'e}nez-Gonz{\'a}lez, \{J. I.\} and L. Pastur and O. Cadot and C. Mart{\'i}nez-Baz{\'a}n",

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AU - Lorite-Díez, M.

AU - Jiménez-González, J. I.

AU - Pastur, L.

AU - Cadot, O.

AU - Martínez-Bazán, C.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - This study reveals that injecting a light fluid of density ρb in the recirculating bubble of a bluff body at Re≈6.4×104 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 (ρb/ρ)-16. 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.

AB - This study reveals that injecting a light fluid of density ρb in the recirculating bubble of a bluff body at Re≈6.4×104 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 (ρb/ρ)-16. 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.

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DO - 10.1103/PhysRevE.102.011101

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Drag reduction of three-dimensional bodies by base blowing with various gas densities

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