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A new high-accuracy scheme for compressible turbulent flows
Authors:Yansu Li  Jian Yu  Hongkang Liu
Affiliation:School of Aeronautic Science and Engineering, Beihang University, Beijing, China
Abstract:Shock-capturing and broad-bandwidth scale resolutions are two main challenges of compressible turbulent flow simulation. To meet the rigorous requests, a novel fifth-order hybrid scheme based on a uniform hybrid framework is designed. With the help of a continuous weight operator, the new scheme combines an upwind compact scheme for smooth regions and a compact-reconstruction weighted essentially non-oscillatory scheme for discontinuous regions. Numerical analyses and canonical numerical tests confirm that the new scheme has high accuracy, spectral-like resolution property and shock-capturing capability. Besides, the new scheme shows high computational efficiency compared to the related shock-capturing schemes and hybrid ones.
Keywords:Compressible turbulent flow  high resolution  shock capturing  WENO scheme  compact scheme  hybrid scheme
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