Aerodynamics of heavy vehicles

H Choi, J Lee, H Park - Annual Review of Fluid Mechanics, 2014 - annualreviews.org
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 …

[KIRJA][B] Machine learning control-taming nonlinear dynamics and turbulence

T Duriez, SL Brunton, BR Noack - 2017 - Springer
This book is an introduction to machine learning control (MLC), a surprisingly simple model-
free methodology to tame complex nonlinear systems. These systems are assumed to be …

Drag reduction of a car model by linear genetic programming control

R Li, BR Noack, L Cordier, J Borée, F Harambat - Experiments in Fluids, 2017 - Springer
We investigate open-and closed-loop active control for aerodynamic drag reduction of a car
model. Turbulent flow around a blunt-edged Ahmed body is examined at Re_ H ≈ 3 * 10^ 5 …

Large trucks drag reduction using active flow control

A Seifert, O Stalnov, D Sperber, G Arwatz… - The Aerodynamics of …, 2009 - Springer
Aerodynamic drag is the cause for more than two-thirds of the fuel consumption of large
trucks at highway speeds. Due to functionality considerations, the aerodynamic efficiency of …

Retractable air deflection apparatus for reduction of vehicular air drag

HG Nusbaum - US Patent 7,641,262, 2010 - Google Patents
(Continued) and thereby improves its fuel economy, resulting in a reduc tion in fuel cost. The
air deflection elements may be deployed and retracted manually, or remotely with powered …

Coupling analysis of transient aerodynamic and dynamic response of articulated heavy vehicles under crosswinds

Q Zhang, C Su, M Tsubokura, Z Hu, Y Wang - Physics of Fluids, 2022 - pubs.aip.org
Vehicle aerodynamics and dynamics in gusty crosswind conditions are of increasing
significance for the lateral stability of heavy ground vehicles, especially articulated heavy …

Wind tunnel experiment on a heavy truck equipped with front-rear trailer device

L Salati, P Schito, F Cheli - Journal of Wind Engineering and Industrial …, 2017 - Elsevier
The aerodynamic drag of a “common” European heavy truck equipped with Front-Rear
trailer device, earlier designed by the authors with numerical simulations, was investigated …

Effect of the frontal edge radius in a platoon of bluff bodies

T Gheyssens, G Van Raemdonck - SAE International Journal of …, 2016 - sae.org
This paper investigates the effect of the frontal edge radius of the Generalized European
Transport System (GETS) model on the aerodynamic behavior of three different vehicles in a …

A second generation URANS approach for application to aerodynamic design and optimization in the automotive industry

L Xu - 2020 - dspace.mit.edu
To address the issues of the existing hybrid models and to better address the industrial need
for a robust, grid consistent, and widely applicable hybrid model, an interesting new …

From lab to full scale Active Flow Control drag reduction: How to bridge the gap?

A Seifert, T Shtendel, D Dolgopyat - Journal of Wind Engineering and …, 2015 - Elsevier
Abstract Active Flow Control (AFC) is being investigated as a tool for boundary layer
separation delay. Increasing lift by delaying stall has been the most common objective. More …