Imperial College London
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ProfessorSylvainLaizet

Faculty of Engineering, Department of Aeronautics

Professor in Computational Fluid Mechanics
 
 
 
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Contact

 

+44 (0)20 7594 5045s.laizet Website

 
 
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Location

 

339City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Hamzehloo:2021:10.1002/fld.4879,
author = {Hamzehloo, A and Lusher, D and Laizet, S and Sandham, N},
doi = {10.1002/fld.4879},
journal = {International Journal for Numerical Methods in Fluids},
pages = {176--196},
title = {On the performance of WENO/TENO schemes to resolve turbulence in DNS/LES of high-speed compressible flows},
url = {http://dx.doi.org/10.1002/fld.4879},
volume = {93},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Highspeed compressible turbulent flows typically contain discontinuities and have been widely modelled using Weighted Essentially NonOscillatory (WENO) schemes due to their highorder accuracy and sharp shock capturing capability. However, such schemes may damp the small scales of turbulence, and result in inaccurate solutions in the context of turbulenceresolving simulations. In this connection, the recentlydeveloped Targeted Essentially NonOscillatory (TENO) schemes, including adaptive variants, may offer significant improvements. The present study aims to quantify the potential of these new schemes for a fullyturbulent supersonic flow. Specifically, DNS of a compressible turbulent channel flow with M = 1: 5 and Re τ = 222 is conducted using OpenSBLI, a highorder finite difference CFD framework. This flow configuration is chosen to decouple the effect of flow discontinuities and turbulence and focus on the capability of the aforementioned highorder schemes to resolve turbulent structures. The effect of the spatial resolution in different directions and coarse grid implicit LES are also evaluated against theWALE LES model. The TENO schemes are found to exhibit significant performance improvements over the WENO schemes in terms of the accuracy of the statistics and the resolution of the threedimensional vortical structures. The 6th order adaptive TENO scheme is found to produce comparable results to those obtained with nondissipative 4th and 6th order central schemes and reference data obtained with spectral methods. Although the most computationally expensive scheme, it is shown that this adaptive scheme can produce satisfactory results if used as an implicit LES model.
AU  - Hamzehloo,A
AU  - Lusher,D
AU  - Laizet,S
AU  - Sandham,N
DO  - 10.1002/fld.4879
EP  - 196
PY  - 2021///
SN  - 0271-2091
SP  - 176
TI  - On the performance of WENO/TENO schemes to resolve turbulence in DNS/LES of high-speed compressible flows
T2  - International Journal for Numerical Methods in Fluids
UR  - http://dx.doi.org/10.1002/fld.4879
UR  - https://onlinelibrary.wiley.com/doi/10.1002/fld.4879
UR  - http://hdl.handle.net/10044/1/80927
VL  - 93
ER  -
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