Cascades and transitions in turbulent flows

A Alexakis, L Biferale - Physics Reports, 2018 - Elsevier
Turbulent flows are characterized by the non-linear cascades of energy and other inviscid
invariants across a huge range of scales, from where they are injected to where they are …

[HTML][HTML] Lectures on turbulence

R Benzi, F Toschi - Physics Reports, 2023 - Elsevier
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 …

Analytical continuum mechanics à la Hamilton–Piola least action principle for second gradient continua and capillary fluids

N Auffray, F dell'Isola, VA Eremeyev… - … and Mechanics of …, 2015 - journals.sagepub.com
In this paper a stationary action principle is proved to hold for capillary fluids, ie fluids for
which the deformation energy has the form suggested, starting from molecular arguments …

Wall accumulation and spatial localization in particle-laden wall flows

G Sardina, P Schlatter, L Brandt, F Picano… - Journal of Fluid …, 2012 - cambridge.org
We study the two main phenomenologies associated with the transport of inertial particles in
turbulent flows, turbophoresis and small-scale clustering. Turbophoresis describes the …

Turbulent friction in rough pipes and the energy spectrum of the phenomenological theory

G Gioia, P Chakraborty - Physical review letters, 2006 - APS
The classical experiments on turbulent friction in rough pipes were performed by Nikuradse
in the 1930s. Seventy years later, they continue to defy theory. Here we model Nikuradse's …

Cascades and wall-normal fluxes in turbulent channel flows

A Cimarelli, E De Angelis, J Jimenez… - Journal of Fluid …, 2016 - cambridge.org
The present work describes the multidimensional behaviour of scale-energy production,
transfer and dissipation in wall-bounded turbulent flows. This approach allows us to …

Paths of energy in turbulent channel flows

A Cimarelli, E De Angelis, CM Casciola - Journal of Fluid Mechanics, 2013 - cambridge.org
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 …

Clustering and turbulence modulation in particle-laden shear flows

P Gualtieri, F Picano, G Sardina… - Journal of Fluid …, 2013 - cambridge.org
Turbulent fluctuations induce the common phenomenon known as clustering in the spatial
arrangement of small inertial particles transported by the fluid. Particles spread non …

Scaling of second-and higher-order structure functions in turbulent boundary layers

CM De Silva, I Marusic, JD Woodcock… - Journal of Fluid …, 2015 - cambridge.org
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 …

Turbulent flame speed and reaction layer thickening in premixed jet flames at constant Karlovitz and increasing Reynolds numbers

A Attili, S Luca, D Denker, F Bisetti, H Pitsch - Proceedings of the …, 2021 - Elsevier
A series of Direct Numerical Simulations (DNS) of lean methane/air flames was conducted to
investigate the enhancement of the turbulent flame speed and modifications to the reaction …