| DC Field | Value | Language |
|---|
| dc.contributor.author | Ferrari, Jalusa Maria da Silva | - |
| dc.contributor.author | Kayser, Fábio Matos | - |
| dc.contributor.author | Noleto, Luciano Gonçalves | - |
| dc.contributor.author | Goulart, Jhon Nero Vaz | - |
| dc.date.accessioned | 2022-02-07T14:46:58Z | - |
| dc.date.available | 2022-02-07T14:46:58Z | - |
| dc.date.issued | 2020-12-31 | - |
| dc.identifier.citation | FERRARI, Jalusa Maria S. et al. A numerical study of aerodynamic coefficients of a ground vehicle. Revista Interdisciplinar de Pesquisa em Engenharia, Brasília, v. 6, n. 2, p. 34-43, 2020. Disponível em: https://www.periodicos.unb.br/index.php/ripe/article/view/34820. Acesso em: 7 fev. 2022. | pt_BR |
| dc.identifier.uri | https://repositorio.unb.br/handle/10482/42821 | - |
| dc.language.iso | Inglês | pt_BR |
| dc.publisher | Universidade de Brasília | pt_BR |
| dc.rights | Acesso Aberto | pt_BR |
| dc.title | Numerical study of aerodynamic coefficients of a ground vehicle | pt_BR |
| dc.type | Artigo | pt_BR |
| dc.subject.keyword | Coeficientes aerodinâmicos | pt_BR |
| dc.subject.keyword | Veículos | pt_BR |
| dc.rights.license | (CC BY ND) | pt_BR |
| dc.description.abstract1 | The objective of the present paper is to evaluate the turbulent flow around the Ahmed body immersed in
air and to determine its aerodynamic coefficients for different slant angles. The bidimensional non-stationary
analysis of an incompressible flow around the Ahmed body is carried out for three different rear angles which are 0°,
10° and 25°. The numerical simulations were performed under the same Reynolds number, ReL = 94 000, based on
the free streamwise velocity, u, the longitudinal length of the Ahmed body, L, and the kinematic viscosity of the
work fluid, ν. The additional diffusivity caused by the turbulent motion was approached using the Boussinesq’s idea
through the k-ω SST. In the paper, aerodynamic coefficients of drag and the pressure and velocity fields are
presented to characterize the Ahmed body for such slant angles, as well as the flow detachment point, determined
through the dimensionless skin friction factor distribution on the body’s surface. The results showed that the slant
presence affects the skin friction and pressure coefficients. As the slant angle was increased, the portion of pressure
drag became more significant in total drag. Skin friction coefficient distribution was first presented for this body. As
numerical simulations were compared with available results in open literature and showed agreement, we
concluded that it was possible to simulate a problem notably tridimensional with a bidimensional simulation, leading
to savings in simulation time and computational cost. | pt_BR |
| dc.identifier.orcid | https://orcid.org/0000-0002-3045-1975 | pt_BR |
| dc.description.unidade | Faculdade UnB Gama (FGA) | - |
| Appears in Collections: | Artigos publicados em periódicos e afins
|
