What is it about?
Flow around automotive generic bodies allow us to isolate and understand the detailed flow physics and interactions between specific flow structures of interest. Detached-Eddy Simulation combines the efficiency of Reynolds-Averaged Navier Stokes (RANS) which computes the mean representation of the flow, with the accuracy of Large-Eddy Simulation (LES) offering greater insights into the unsteady flow behaviour. This is implemented in a higher-order numerical framework to obtain greater accuracy with lower resolution grids.
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Why is it important?
This is one of the most exciting areas of Computational Fluid Dynamics and enables larger, more detailed simulations to run with lower computational costs. Furthermore, this has the potential to capture finer flow structures with relatively small increases in computational costs or greater accuracy on coarse grids.
Perspectives
This is part of a larger on-going study with SAE Notchback models and Windsor bodies. I am developing novel hybrid turbulence models which are being validated with generic automotive flows.
Asiful Islam
University of Sydney
Read the Original
This page is a summary of: High-order detached-eddy simulation of external aerodynamics over an SAE notchback model, The Aeronautical Journal, July 2017, Cambridge University Press,
DOI: 10.1017/aer.2017.61.
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