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physics.flu-dyn2012★ 27 cited
On the Kolmogorov Constants for the Second-Order Structure Function and the Energy Spectrum
Rui Ni, Ke-Qing Xia
We examine the behavior of the Kolmogorov constants C_2, C_k, and C_{k1}, which are, respectively, the prefactors of the second order longitudinal structure function, the three dim…
physics.flu-dyn2012★ 20 cited
Experimental investigation of pair dispersion with small initial separation in convective turbulent flows
Rui Ni, Ke-Qing Xia
We report an experimental investigation of pair dispersions in turbulent thermal convection with initial separation r0 ranging from sub-Kolmogorov scale to scales in the inertial r…