Aerodynamics of heavy vehicles
We present an overview of the aerodynamics of heavy vehicles, such as tractor-trailers, high-
speed trains, and buses. We introduce three-dimensional flow structures around simplified …
speed trains, and buses. We introduce three-dimensional flow structures around simplified …
Assessment of RANS and DES methods for realistic automotive models
This paper presents a comprehensive investigation of RANS and DES models for the
Ahmed car body and a realistic automotive vehicle; the DrivAer model. A variety of RANS …
Ahmed car body and a realistic automotive vehicle; the DrivAer model. A variety of RANS …
[HTML][HTML] Experimental characterization of flow unsteadiness in the centerline plane of an Ahmed body rear slant
This study presents the results of an experimental analysis of the unsteady features of the
flow around the rear part of an Ahmed body with rear slant angle of 25°. This analysis …
flow around the rear part of an Ahmed body with rear slant angle of 25°. This analysis …
[HTML][HTML] On the eddy-resolving capability of high-order discontinuous Galerkin approaches to implicit LES/under-resolved DNS of Euler turbulence
We present estimates of spectral resolution power for under-resolved turbulent Euler flows
obtained with high-order discontinuous Galerkin (DG) methods. The '1% rule'based on …
obtained with high-order discontinuous Galerkin (DG) methods. The '1% rule'based on …
Assessment of hybrid RANS-LES formulations for flow simulation around the Ahmed body
This paper presents an investigation of RANS and DES models for the Ahmed body with 25°
and 35° slant angles. The Reynolds number, based on the height of the model and the …
and 35° slant angles. The Reynolds number, based on the height of the model and the …
[HTML][HTML] A comparative study on polynomial dealiasing and split form discontinuous Galerkin schemes for under-resolved turbulence computations
This work focuses on the accuracy and stability of high-order nodal discontinuous Galerkin
(DG) methods for under-resolved turbulence computations. In particular we consider the …
(DG) methods for under-resolved turbulence computations. In particular we consider the …
A low-dissipation finite element scheme for scale resolving simulations of turbulent flows
The present work extends the conservative convective scheme proposed by Charnyi et
al.(2017)[13], originally formulated for mixed finite elements and tested in laminar flows, to …
al.(2017)[13], originally formulated for mixed finite elements and tested in laminar flows, to …
[HTML][HTML] Experimental characterization of the unsteady natural wake of the full-scale square back Ahmed body: flow bi-stability and spectral analysis
R Volpe, P Devinant, A Kourta - Experiments in Fluids, 2015 - Springer
In recent years, the increasing interest in reducing the aerodynamic drag of vehicles, such
as station wagons, minivans or buses, has led research to focus on the characterization of …
as station wagons, minivans or buses, has led research to focus on the characterization of …
Unsteady forces on a circular cylinder at critical Reynolds numbers
It is well known that the flow past a circular cylinder at critical Reynolds number combines
flow separation, turbulence transition, reattachment of the flow, and further turbulent …
flow separation, turbulence transition, reattachment of the flow, and further turbulent …
Flow and turbulent structures around simplified car models
External car aerodynamics study has great importance in overall car efficiency and ride
stability, being a key element in successful automotive design. The flow over car geometries …
stability, being a key element in successful automotive design. The flow over car geometries …