Application of Real-World Wind Conditions for Assessing Aerodynamic Drag for On-Road Range Prediction

A Fully Coupled, 6 Degree-of-Freedom, Aerodynamic and Vehicle Handling Crosswind Simulation using the DrivAer Model

“…This type of simulation removes many of the restrictions imposed by physical testing, with parameters such as flow yaw angle and gust length simply given as boundary values. Many studies have reproduced realistic on road turbulence levels using CFD such as Gaylard et al [26], D'Hooge et al [27], and Theissen [28], with emphasis on accurate wind averaged drag values. These simulations limit flow yaw angles to a range of ±5° and thus can be classed separately to those of isolated extreme gusts which present a safety issue, however such conditions are important to manufacturers because they contribute to quality and refinement issues with respect to noise and ride comfort.…”

“…The aerodynamic response of a vehicle during a crosswind has been investigated using numerous methods. On road vehicle testing [5,6,7,8,9] is often preferred as it places a representative driver and vehicle in a real-world environment, whilst crosswind generators beside test tracks [10,11] offer a degree of control over gust parameters.…”

“…The aerodynamic response of a vehicle during a crosswind has been investigated using numerous methods. On road vehicle testing [5,6,7,8,9] is often preferred as it places a representative driver and vehicle in a real-world environment, whilst crosswind generators beside test tracks [10,11] offer a degree of control over gust parameters.An International Standard ISO 12021:2010 [13] has been derived in an attempt to standardize such facilities. These guidelines appear to be based on the work of Howell [11], in which a trifurcated tail pipe attached to the exhaust of a jet engine was used to determine the behavior of a small Sports Utility Vehicle (SUV) when passing Adrian P. Gaylard Jaguar Land Rover…”

Influence of Side Spoilers on the Aerodynamic Properties of a Sports Car

“…Road tests and tests in facilities equipped with wind generator units are another form of investigation [5]. The use of numerical calculations not only makes it possible to study the effects of real-world wind conditions [6] but also makes it possible to investigate the aerodynamic properties of a vehicle in a steady-state crosswind [7]. The most complex simulations include the influence of a crosswind gust on the movement of a vehicle [8][9][10], as well as an analysis of the aerodynamic properties of a car during dynamic maneuvers as performed in [11,12].…”

Utilizing the Effect of Air Speed to Improve Automobile Moving Performance

“…The lower air pressure on the top and the higher pressure under the car cause the car to lift. The lifting forces are not distributed uniformly for every corner of a car, especially when a car makes a turn [1][2][3]. These uneven lifting forces limit the capability of a car to make turns at higher speed.…”