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



Lorite-Diez, M, Jimenez-Gonzalez, JI, Pastur, L, Cadot, O ORCID: 0000-0001-7323-6418 and Martinez-Bazan, C
(2020) Drag reduction of three-dimensional bodies by base blowing with various gas densities. PHYSICAL REVIEW E, 102 (1). 011101-.

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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.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 22 Jun 2020 09:55
Last Modified: 18 Jan 2023 23:48
DOI: 10.1103/PhysRevE.102.011101
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3090703