Direct numerical simulation of decaying compressible turbulence and shocklet statistics

  title={Direct numerical simulation of decaying compressible turbulence and shocklet statistics},
  author={Ravi Samtaney and D. I. Pullin and Branko Kosovi{\'c}},
  journal={Physics of Fluids},
We present results from 1283 and 2563 direct numerical simulations (DNS) of decaying compressible, isotropic turbulence at fluctuation Mach numbers of Mt∼0.1–0.5 and at Taylor Reynolds numbers Reλ=O(50–100). The presence or absence of fluctuations of thermodynamic quantities as well as velocity divergence in the initial conditions are found to have a negligible effect on the decay of turbulent kinetic energy. The decay of the turbulent kinetic energy shows no significant effect of Mt and power… 

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