Browsing by Author "Breyiannis, G."
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AN INVISCID INVESTIGATION OF THE INITIATION OF ROLL WAVES IN HORIZONTAL GASLIQUID FLOWS
Breyiannis, G.; Valougeorgis, D.; Bontozoglou, V.; Goulas, A. (1994)A model with constant vorticity in the liquid phase has been applied to the study of interfacial waves between two inviscid fluids in relative motion, in order to take into account the shear induced into the liquid by the ... 
A kinetic model for the diffusion coefficients of magnetically confined plasmas in the lowcollisional regime
Sonnino, G.; Peeters, P.; Zonca, F.; Breyiannis, G. (2008) 
LARGEAMPLITUDE INTERFACIAL WAVES ON A LINEAR SHEARFLOW IN THE PRESENCE OF A CURRENT
Breyiannis, G.; Bontozoglou, V.; Valougeorgis, D.; Goulas, A. (1993)The properties of twodimensional steady periodic interfacial gravity waves between two fluids in relative motion and of constant vorticities and finite depths are investigated analytically and numerically. Particular ... 
Lattice kinetic schemes in fusion plasmas
Breyiannis, G.; Valougeorgis, D. (2008)Lattice Boltzmann Methods (LBM) are an established alternative approach for numerical simulations of a large spectrum of physical processes. They are based on a mesoscopic analysis of the underlying physics through a ... 
Lattice kinetic schemes in toroidal geometry
Breyiannis, G.; Valougeorgis, D. (2006)Lattice kinetic schemes has been consistently developed for the last 15 years as a tool to tackle complicated problems from a mesoscopic perspective. The system is described by a velocity distribution function, which follows ... 
Lattice kinetic simulations in threedimensional magnetohydrodynamics
Breyiannis, G.; Valougeorgis, D. (2004)A lattice kinetic algorithm to simulate threedimensional (3D) incompressible magnetohydrodynamics is presented. The fluid is monitored by a distribution function, which obeys a scalar kinetic equation, subject to an ... 
Lattice kinetic simulations of 3D MHD turbulence
Breyiannis, G.; Valougeorgis, D. (2006)A recently proposed lattice Boltzmann kinetic scheme offers a promising tool for simulating complex 3D MHD flows. The algorithm is based on the BGK modeling of the collision term. The conventional approach for implementing ... 
Rarefied gas flow in concentric annular tube: Estimation of the Poiseuille number and the exact hydraulic diameter
Breyiannis, G.; Varoutis, S.; Valougeorgis, D. (2008)The fully developed flow of rarefied gases through circular ducts of concentric annular cross sections is solved via kinetic theory. The flow is due to an externally imposed pressure gradient in the longitudinal direction ...