A5089148274- Fluid Dynamics and Turbulent Flows
- Heat Transfer Mechanisms
- Solar Thermal and Photovoltaic Systems
- Particle Dynamics in Fluid Flows
- Fluid Dynamics and Mixing
- Photovoltaic System Optimization Techniques
- Fluid Dynamics and Heat Transfer
- Lattice Boltzmann Simulation Studies
- Heat transfer and supercritical fluids
- Wind and Air Flow Studies
- Heat Transfer and Optimization
- Computational Fluid Dynamics and Aerodynamics
- Granular flow and fluidized beds
- Nanofluid Flow and Heat Transfer
- Combustion and flame dynamics
- Heat Transfer and Boiling Studies
- Fluid Dynamics Simulations and Interactions
- Nuclear Engineering Thermal-Hydraulics
- Cyclone Separators and Fluid Dynamics
- Solar-Powered Water Purification Methods
- Aerodynamics and Acoustics in Jet Flows
- Solar Energy Systems and Technologies
- Aerosol Filtration and Electrostatic Precipitation
- Spacecraft and Cryogenic Technologies
- Fluid Dynamics and Vibration Analysis
Laboratoire Procédés, Matériaux et Energie Solaire
2016-2025
Université de Perpignan
2016-2025
Centre National de la Recherche Scientifique
2015-2024
Laboratoire Rhéologie et Procédés
2024
CEA Grenoble
2006-2012
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2006-2012
Direction des énergies
2009
Sorbonne Université
2008
Two-phase bubbly flows are found in many industrial applications. These involve complex local phenomena that still poorly understood. For instance, two-phase turbulence modelling is commonly based on single-phase flow analyses. A direct numerical simulation (DNS) database described here to improve the understanding of turbulent channel at a parietal Reynolds number 127. Based DNS results, physical interpretation stress and momentum budgets proposed. First, surface tension be strongest force...
A crucial issue in two-phase flows is related to the modeling of viscous stresses. new general stress model for Newtonian derived theoretically from Navier–Stokes equations and jump conditions at interface. The developed within framework one-fluid approach. only assumptions are incompressibility, no phase change, constant surface tension. It argued that this allows a theoretical definition equivalent vicinity interfaces. Moreover, computational fluid dynamics, it can be seen as physical...
Thermal large eddy simulations are carried out in order to study the convective flow a solar receiver. We investigate impact of thermal gradients on turbulent channel with imposed wall temperatures for two Reynolds numbers based friction velocity (180 and 395). In this configuration, is subsonic, while temperature variations can be strong induce significant fluid properties. The low Mach number equations considered. influence conductivity viscosity first investigated. show that these...
This paper investigates the energy exchanges associated with half-trace of velocity fluctuation correlation tensor in a strongly anisothermal low Mach fully developed turbulent channel flow. The study is based on direct numerical simulations within number hypothesis and without gravity. overall flow behaviour governed by variable fluid properties. temperature two walls are imposed at 293 K 586 to generate gradient. mean friction Reynolds simulation 180. analysis carried out spatial spectral...
Abstract This paper studied nonisothermal plane channel flows using the method of thermal large-eddy simulations (TLES). Several temperature ratios (TR =TH /TC ) were investigated, where TC and TH are temperatures cold hot sides, respectively. Each TR case is further considered for two wall Reynolds numbers (Re τm ), 180 395, number was defined as average local values obtained Re τC τH . For a given , it demonstrated that increased ratio directly led to an enhanced disparity between sides....