Automotive Aerodynamics J. Katz John Wiley and Sons, The Atrium, Southern Gate, Chichester, West Sussex, PO19 8SQ, UK. 2016. 608pp. Illustrated. £74.95. ISBN 978-1-119-18572-7.

2017 ◽  
Vol 121 (1244) ◽  
pp. 1595-1596
Author(s):  
Remus Cîrstea
Keyword(s):  
Automotive Aerodynamics

scholarly journals An Arbitrary Hybrid Turbulence Modeling Approach for Efficient and Accurate Automotive Aerodynamic Analysis and Design Optimization

Fluids ◽  
2021 ◽  
Vol 6 (11) ◽  
pp. 407
Author(s):  
Saule Maulenkul ◽  
Kaiyrbek Yerzhanov ◽  
Azamat Kabidollayev ◽  
Bagdaulet Kamalov ◽  
Sagidolla Batay ◽  
...  
Keyword(s):  
Flow Field ◽  
Design Optimization ◽  
Automotive Industry ◽  
Turbulence Modeling ◽  
Turbulence Models ◽  
Analysis And Design ◽  
Eddy Simulation ◽  
Gradient Based ◽  
Automotive Aerodynamics ◽  
Single Flow

The demand in solving complex turbulent fluid flows has been growing rapidly in the automotive industry for the last decade as engineers strive to design better vehicles to improve drag coefficients, noise levels and drivability. This paper presents the implementation of an arbitrary hybrid turbulence modeling (AHTM) approach in OpenFOAM for the efficient simulation of common automotive aerodynamics with unsteady turbulent separated flows such as the Kelvin–Helmholtz effect, which can also be used as an efficient part of aerodynamic design optimization (ADO) tools. This AHTM approach is based on the concept of Very Large Eddy Simulation (VLES), which can arbitrarily combine RANS, URANS, LES and DNS turbulence models in a single flow field depending on the local mesh refinement. As a result, the design engineer can take advantage of this unique and highly flexible approach to tailor his grid according to his design and resolution requirements in different areas of the flow field over the car body without sacrificing accuracy and efficiency at the same time. This paper presents the details of the implementation and careful validation of the AHTM method using the standard benchmark case of the Ahmed body, in comparison with some other existing models, such as RANS, URANS, DES and LES, which shows VLES to be the most accurate among the five examined. Furthermore, the results of this study demonstrate that the AHTM approach has the flexibility, efficiency and accuracy to be integrated with ADO tools for engineering design in the automotive industry. The approach can also be used for the detailed study of highly complex turbulent phenomena such as the Kelvin–Helmholtz instability commonly found in automotive aerodynamics. Currently, the AHTM implementation is being integrated with the DAFoam for gradient-based multi-point ADO using an efficient adjoint solver based on a Sparse Nonlinear optimizer (SNOPT).

scholarly journals Study of artificial intelligence for development of automotive aerodynamics

2019 ◽  
Vol 2019 (0) ◽  
pp. IS-21
Author(s):  
Megumi MATSUMOTO ◽  
Naoki HAMAMOTO ◽  
Yasuhiko OKUTSU ◽  
Daisuke AZUMA ◽  
Yuki HATTORI
Keyword(s):  
Artificial Intelligence ◽  
Automotive Aerodynamics

The Application of Particle Image Velocimetry in Automotive Aerodynamics.

2010 ◽  
Author(s):  
Martin A. Passmore ◽  
Adrian Spencer ◽  
Daniel Wood ◽  
Lydia Jowsey ◽  
P S Newnham
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Image Velocimetry ◽  
Automotive Aerodynamics

Automotive Aerodynamics in 2020

ATZ worldwide ◽  
2016 ◽  
Vol 118 (12) ◽  
pp. 48-53
Author(s):  
Thomas Schütz ◽  
Sven Klußmann ◽  
Ralf Neuendorf
Keyword(s):  
Automotive Aerodynamics

Application of Detached-Eddy Simulation for Automotive Aerodynamics Development

2009 ◽  
Author(s):  
M. Islam ◽  
F. Decker ◽  
E. de Villiers ◽  
A. Jackson ◽  
J. Gines ◽  
...  
Keyword(s):  
Detached Eddy Simulation ◽  
Eddy Simulation ◽  
Automotive Aerodynamics

Experimental Study of Automotive Aerodynamics in Headlamp Effect

2011 ◽  
Vol 279 ◽  
pp. 339-344
Author(s):  
Lan Fang Jiang ◽  
Hong Liu ◽  
Ai Qi Li
Keyword(s):  
Numerical Simulation ◽  
Boundary Condition ◽  
Experimental Study ◽  
Reynolds Number ◽  
Wind Tunnel ◽  
Drag Coefficient ◽  
Surface Pressure ◽  
Symmetry Plane ◽  
Automotive Aerodynamics ◽  
Inlet Boundary Condition

The effect of headlamp modeling on automotive aerodynamics was studied by wind tunnel tests. Firstly, the effect of Reynolds number on drag coefficient of automotive scaled down models was studied under different velocity of flow to verify the rationality of selecting scale for scaled down model and setting inlet boundary condition. Secondly, drag coefficient of automotive scaled down models with different headlamp modeling design were measured. Thirdly, the distribution of surface pressure on central symmetry plane and headlamp was measured and analyzed. It also validated the validity of preceding numerical simulation. It is of importance to guide the headlamp modeling design and automotive modeling design.

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