Loading...
Loading...

Go to the content (press return)

Flow over a realistic car model: wall modeled large eddy simulations assessment and unsteady effects

Author
Aljure, D.E.; Calafell, J.; Baez, A.; Oliva, A.
Type of activity
Journal article
Journal
Journal of wind engineering and industrial aerodynamics
Date of publication
2018-03-01
Volume
174
First page
225
Last page
240
DOI
https://doi.org/10.1016/j.jweia.2017.12.027 Open in new window
Repository
http://hdl.handle.net/2117/125379 Open in new window
URL
https://www.sciencedirect.com/science/article/pii/S0167610517306955 Open in new window
Abstract
Numerical simulations are carried out on the flow over a realistic generic car geometry, the DrivAer-fastback car model. Pure large eddy simulations (LES) and wall-modeled large eddy simulations (WMLES) are used and compared to numerical and experimental results to assess the validity of these approaches when solving the flow field around complex automotive geometries. Results show a 70% CPU time reduction when using the wall model. Drag coefficient results show the influence of the wall model o...
Citation
Aljure, D.E., Calafell, J., Baez, A., Oliva, A. Flow over a realistic car model: wall modeled large eddy simulations assessment and unsteady effects. "Journal of wind engineering and industrial aerodynamics", 1 Març 2018, vol. 174, p. 225-240.
Keywords
Automotive aerodynamics, CFD, Turbulence models, Wall model LES
Group of research
CTTC - Heat and Mass Transfer Technological Center

Participants