All known data are collected on the Kolmogorov constant in one-dimensional spectral formula for the inertial range. For large enough microscale Reynolds numbers, the data (despite much scatter)â€¦ (More)

Turbulent convection occurs when the Rayleigh number (Ra)â€”which quantifies the relative magnitude of thermal driving to dissipative forces in the fluid motionâ€”becomes sufficiently high. Although manyâ€¦ (More)

Related Articles Lagrangian evolution of the invariants of the velocity gradient tensor in a turbulent boundary layer Phys. Fluids 24, 105104 (2012) Effects of moderate Reynolds numbers on subsonicâ€¦ (More)

Small-scale turbulence has been an area of especially active research in the recent past, and several useful research directions have been pursued. Here, we selectively review this work. The emphasisâ€¦ (More)

New measurements of the Nusselt number have been made in turbulent thermal convection confined in a cylindrical container of aspect ratio unity. The apparatus is essentially the same as that used byâ€¦ (More)

It is pointed out that, for microscale Reynolds numbers less than about 1000, the passive scalar spectrum in turbulentshear flowsis less steep than anticipated and that the Obukhovâ€“Corrsin constantâ€¦ (More)

Ever since Kolmogorovâ€™ introduced the intermittency exponent, more than a dozen attempts have been made to obtain its numerical value from experiments. The resulting estimates have varied from as lowâ€¦ (More)

Lars Onsager, a giant of twentieth-century science and the 1968 Nobel Laureate in Chemistry, made deep contributions to several areas of physics and chemistry. Perhaps less well known is hisâ€¦ (More)

We expand on our previous argument (Sreenivasan 1987) that important elements of the dynamics of wall-bounded flows reside at the wall-normal position y p corresponding to the peak of the Reynoldsâ€¦ (More)

Fluid turbulence is a paradigm for non-linear systems with many degrees of freedom and important in numerous applications. Because the analytical understanding of the equations of motion is poor,â€¦ (More)