WH Matthaeus - Physics of Plasmas, 2021 - pubs.aip.org
The complex nonlinear dynamical phenomenon described as turbulence, is known to have a great impact on fluids, magnetohydrodynamic systems, and on plasmas. This paper …
Fluid dynamics turbulence refers to the chaotic and unpredictable dynamics of flows. Despite the fact that the equations governing the motion of fluids are known since more than …
A shear-improved Smagorinsky model is introduced based on results concerning mean- shear effects in wall-bounded turbulence. The Smagorinsky eddy-viscosity is modified as …
The paper describes the energy fluxes simultaneously occurring in the space of scales and in the physical space of wall-turbulent flows. The unexpected behaviour of the energy fluxes …
N Marati, CM Casciola, R Piva - Journal of Fluid Mechanics, 2004 - cambridge.org
Real turbulent flows are difficult to classify as either spatially homogeneous or isotropic. Nonetheless these idealizations allow the identification of certain universal features …
RA Antonia, P Burattini - Journal of fluid mechanics, 2006 - cambridge.org
Kolmogorov's similarity hypotheses and his 4/5 law are valid at very large Reynolds numbers. For flows encountered in the laboratory, the effect of a finite Reynolds number and …
The statistical properties of wall turbulence in the logarithmic region are investigated using structure functions of the streamwise velocity. To this end, datasets that span several orders …
A Chiarini, D Gatti, A Cimarelli… - Journal of Fluid …, 2022 - cambridge.org
The separating and reattaching turbulent flow past a rectangular cylinder is studied to describe how small and large scales contribute to the sustaining mechanism of the velocity …