Vincenzo Armenio | Università degli Studi di Trieste (original) (raw)
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Papers by Vincenzo Armenio
Chemometrics and Intelligent Laboratory Systems, 2011
ERCOFTAC Series, 2004
... Armenio. V. and Sarkar. S.(2002). An investigation of stably stratified turbulent channel flo... more ... Armenio. V. and Sarkar. S.(2002). An investigation of stably stratified turbulent channel flow using large-eddy simulation. J. Fluid Mech.. 459: 1. Ding. L.. Calhoun. R., and Street. R.(2003). Numerical simulation of strongly stratified flow over three-dimensional hill. ...
Proceedings of the International Conference on Fluvial Hydraulics, Lisbon, Portugal, 6-8 September 2006, 2006
Springer Proceedings in Physics, 2007
Physical review. E, Statistical, nonlinear, and soft matter physics, 2014
We perform large-eddy simulations of turbulent convection in a cubic cell for Rayleigh numbers, R... more We perform large-eddy simulations of turbulent convection in a cubic cell for Rayleigh numbers, Ra, between 10(6) and 10(10) and the molecular Prandtl number, Pr=0.7. The simulations were carried out using a second-order-accurate finite-difference method in which subgrid-scale fluxes of momentum and heat were both parametrized using a Lagrangian and dynamic Smagorinsky model. The scaling of the root-mean-square fluctuations of density (temperature) and velocity measured in the cell center are in excellent agreement with the scaling measured in the laboratory experiments of Daya and Ecke [Phys. Rev. Lett. 87, 184501 (2001)] and differ substantially from that observed in cylindrical cells. We also observe the time-averaged spatial distributions of the local heat flux and density fluctuations, and find that they are strongly inhomogeneous in the horizontal midplane, with the largest density gradients occurring at the corners at the midheight, where hot and cold plumes mix in the form o...
Il crollo dei ponti fluviali è spesso associato a fenomeni erosivi localizzati in corrispondenza ... more Il crollo dei ponti fluviali è spesso associato a fenomeni erosivi localizzati in corrispondenza delle strutture di sostegno. In letteratura sono proposte diverse formule parametriche per la valutazione della profondità di scavo in corrispondenza di pile o spalle, che forniscono ...
Chemometrics and Intelligent Laboratory Systems, 2011
ERCOFTAC Series, 2004
... Armenio. V. and Sarkar. S.(2002). An investigation of stably stratified turbulent channel flo... more ... Armenio. V. and Sarkar. S.(2002). An investigation of stably stratified turbulent channel flow using large-eddy simulation. J. Fluid Mech.. 459: 1. Ding. L.. Calhoun. R., and Street. R.(2003). Numerical simulation of strongly stratified flow over three-dimensional hill. ...
Proceedings of the International Conference on Fluvial Hydraulics, Lisbon, Portugal, 6-8 September 2006, 2006
Springer Proceedings in Physics, 2007
Physical review. E, Statistical, nonlinear, and soft matter physics, 2014
We perform large-eddy simulations of turbulent convection in a cubic cell for Rayleigh numbers, R... more We perform large-eddy simulations of turbulent convection in a cubic cell for Rayleigh numbers, Ra, between 10(6) and 10(10) and the molecular Prandtl number, Pr=0.7. The simulations were carried out using a second-order-accurate finite-difference method in which subgrid-scale fluxes of momentum and heat were both parametrized using a Lagrangian and dynamic Smagorinsky model. The scaling of the root-mean-square fluctuations of density (temperature) and velocity measured in the cell center are in excellent agreement with the scaling measured in the laboratory experiments of Daya and Ecke [Phys. Rev. Lett. 87, 184501 (2001)] and differ substantially from that observed in cylindrical cells. We also observe the time-averaged spatial distributions of the local heat flux and density fluctuations, and find that they are strongly inhomogeneous in the horizontal midplane, with the largest density gradients occurring at the corners at the midheight, where hot and cold plumes mix in the form o...
Il crollo dei ponti fluviali è spesso associato a fenomeni erosivi localizzati in corrispondenza ... more Il crollo dei ponti fluviali è spesso associato a fenomeni erosivi localizzati in corrispondenza delle strutture di sostegno. In letteratura sono proposte diverse formule parametriche per la valutazione della profondità di scavo in corrispondenza di pile o spalle, che forniscono ...