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physics.flu-dyn2026
Relation between the moments of longitudinal velocity derivatives and of dissipation in turbulence
Ping-Fan Yang, Haitao Xu, Alain Pumir
In homogeneous and isotropic turbulence, measurements of the longitudinal velocity derivative, , make it possible to estimate a surrogate of the rate of energy diss…
physics.flu-dyn2025★ 2 cited
The contribution of dilatational motion to energy flux in homogeneous compressible turbulence
Chensheng Luo, Le Fang, Jian Fang +3
We analyze the energy flux in compressible turbulence by generalizing the exact decomposition recently proposed by Johnson (Phys. Rev. Lett., vol. 124, 2020. 104501) to study incom…
physics.flu-dyn2022★ 18 cited
Low-order moments of the velocity gradient in homogeneous compressible turbulence
PingFan Yang, Jian Fang, Le Fang +2
We derive from first principles analytic relations for the second and third order moments of the velocity gradient mij = dui/dxj in compressible turbulence, which generalize known…