Progress in the research on compressible turbulence

Shi Yipeng; Wang Jianchun; Yang Yantao; Xiao Zuoli; He Xiantu

doi:10.11884/HPLPB201527.032002

Volume 27 Issue 03

Mar. 2015

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Article Navigation > High Power Laser and Particle Beams > 2015 > 27(03): 032002

Xiao Dengjie, Qiao Yusi, Chu Zhongming. Orbit correction based on machine learning[J]. High Power Laser and Particle Beams, 2021, 33: 054004. doi: 10.11884/HPLPB202133.200352

Citation:

Shi Yipeng, Wang Jianchun, Yang Yantao, et al. Progress in the research on compressible turbulence[J]. High Power Laser and Particle Beams, 2015, 27: 032002. doi: 10.11884/HPLPB201527.032002

Xiao Dengjie, Qiao Yusi, Chu Zhongming. Orbit correction based on machine learning[J]. High Power Laser and Particle Beams, 2021, 33: 054004. doi: 10.11884/HPLPB202133.200352

Citation:

Shi Yipeng, Wang Jianchun, Yang Yantao, et al. Progress in the research on compressible turbulence[J]. High Power Laser and Particle Beams, 2015, 27: 032002. doi: 10.11884/HPLPB201527.032002

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Progress in the research on compressible turbulence

doi: 10.11884/HPLPB201527.032002

1.
State Key Laboratory for Turbulence and Complex System,Center for Applied Physics and Technology,Peking University,Beijing 100871,China

Received Date: 2014-10-28
Rev Recd Date: 2014-12-01
Publish Date: 2015-02-10

Abstract

Abstract

High Mach number compressible turbulent flow is a multi-process physical phenomenon with multi-scale properties. To explore its physical mechanism, the motion compressible turbulence is divided into shear and dilation processes, and the effect of dilation on the statistic and dynamics of turbulence is investigated. At first, a new compact-WENO scheme is developed to simulate the turbulent field accurately. The multi-scale properties of shear and dilation process and their effect on the particle transportation are analyzed. The effect of shock on turbulence field is investigated. It is proved that the energy flux due to convection and pressure are constant, then there exists the inertial range for kinetic energy cascade. It is also proved that both the shear and compressible parts of kinetic energy flux are constant in the inertial range. The contribution from subgrid scale stress and subgrid mass flux to the kinetic energy cascade is analyzed.
- compressible turbulence,
- Helmholtz decomposition,
- cascade scaling law

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