Browsing by Author "Dritselis, C. D."
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Buoyancyassisted mixed convection in a vertical channel with spatially periodic wall temperature
Dritselis, C. D.; Iatridis, A. J.; Sarris, I. E.; Vlachos, N. S. (2013)The influence of a spatially periodic temperature boundary condition on the laminar mixed convection in an upward flow between two vertical parallel plates is numerically studied. A detailed assessment is presented of the ... 
DNS/LES study of fluidparticle interaction in a turbulent channel flow at a low reynolds number
Dritselis, C. D.; Vlachos, N. S. (2008)This paper presents results of large eddy simulations (LES) combined with Lagrangian particle tracking and a pointforce approximation of particleladen turbulent channel flows with significant momentum exchange between ... 
Effect of magnetic field on nearwall coherent structures and heat transfer in magnetohydrodynamic turbulent channel flow of low Prandtl number fluids
Dritselis, C. D.; Vlachos, N. S. (2011)A numerical study is carried out of the magnetic field effects on the coherent structures and the associated heat transfer in a turbulent channel flow with constant temperature at the bottom (cold) and top (hot) walls. ... 
Large eddy simulation of gasparticle turbulent channel flow with momentum exchange between the phases
Dritselis, C. D.; Vlachos, N. S. (2011)This paper presents results of a large eddy simulation (LES) combined with Lagrangian particle tracking and a pointforce approximation for the feedback effect of particles on the downward turbulent gaseous flow in a ... 
Large eddy simulation of turbulent channel flow with transverse roughness elements on one wall
Dritselis, C. D. (2014)This study examines the feasibility of large eddy simulation for predicting turbulent channel flows with twodimensional roughness elements of square, circular and triangular shapes transversely placed on the bottom wall. ... 
LES of particleladen turbulent channel flow with transverse roughness elements on one wall
Dritselis, C. D. (2009)The effect of wall roughness on the transport of solid particles in a turbulent channel flow is numerically investigated by means of large eddy simulation coupled with a Lagrangian particletracking scheme. Twodimensional ... 
Magnetic field effect on the cooling of a lowPr fluid in a vertical cylinder
Sarris, I. E.; Iatridis, A. I.; Dritselis, C. D.; Vlachos, N. S. (2010)Results of direct numerical simulations are presented for the transient and turbulent natural convection cooling of an initially isothermal quiescent liquid metal placed in a vertical cylinder in the presence of a vertical ... 
Mixed convection of a low Prandtl fluid with spatially periodic lower wall heating in the presence of a wallnormal magnetic field
Dritselis, C. D.; Knaepen, B. (2014)Numerical simulations of the combined natural and forced convection flow in a horizontal channel have been carried out for a fluid of low Prandtl number in the presence of a uniform wallnormal magnetic field. The upper ... 
Numerical investigation of momentum exchange between particles and coherent structures in low Re turbulent channel flow
Dritselis, C. D.; Vlachos, N. S. (2011)The interaction between particles and coherent structures is studied by using discrete particle simulation combined with direct numerical simulation of gaseous flow in a vertical channel. A conditional sampling scheme is ... 
Numerical modelling of flow and transport processes in a calciner for cement production
Fidaros, D. K.; Baxevanou, C. A.; Dritselis, C. D.; Vlachos, N. S. (2007)Controlling the calcination process in industrial cement kilns is of particular importance because it affects fuel consumption, pollutant emission and the final cement quality. Therefore, understanding the mechanisms of ... 
Numerical study of educed coherent structures in the nearwall region of a particleladen channel flow
Dritselis, C. D.; Vlachos, N. S. (2008)The interaction of small heavy solid particles with turbulence near the wall of a vertical downward channel flow is investigated by using direct numerical simulation (DNS) and Lagrangian particle tracking. The interest is ... 
TRANSIENT LAMINAR MHD NATURAL CONVECTION COOLING IN A VERTICAL CYLINDER
Iatridis, A. J.; Dritselis, C. D.; Sarris, I. E.; Vlachos, N. S. (2012)A numerical study is presented of transient laminar natural convection cooling of an electrically conductive fluid, placed in a vertical cylinder in the presence of an axial magnetic field. The cylindrical wall is suddenly ... 
Transport and deposition of neutral particles in magnetohydrodynamic turbulent channel flows at low magnetic Reynolds numbers
Dritselis, C. D.; Sarris, I. E.; Fidaros, D. K.; Vlachos, N. S. (2011)The effect of Lorentz force on particle transport and deposition is studied by using direct numerical simulation of turbulent channel flow of electrically conducting fluids combined with discrete particle simulation of the ...