Russo, J., Horbach, J., Sciortino, F., Succi, S.
We investigate nanoflows through dilute disordered media by means of joint lattice Boltzmann (LB) and molecular dynamics (MD) simulations -- when the size of the obstacles is comparable to the size...
Mesoscopic lattice Boltzmann modeling of soft-glassy systems: theory and simulations (2009)
Benzi, R., Sbragaglia, M., Succi, S., Bernaschi, M., Chibbaro, S.
A multi-component lattice Boltzmann model recently introduced (R. Benzi et al. Phys. Rev. Lett 102, 026002 (2009)) to describe some dynamical behaviors of soft-flowing materials is theoretically...
Chibbaro, S., Costa, E., Dimitrov, D., Diotallevi, F., Milchev, A., Palmieri, D., ...
We study the impact of wall corrugations in microchannels on the process of capillary filling by means of three broadly used methods - Computational Fluid Dynamics (CFD), Lattice-Boltzmann Equations...
Continuum Free-Energy formulation for a class of Lattice Boltzmann multiphase models (2009)
Sbragaglia, M., Chen, H., Shan, X., Succi, S.
It is shown that the Shan-Chen (SC) model for non-ideal lattice fluids can be made compliant with a pseudo free-energy principle by simple addition of a gradient force, whose expression is uniquely...
Lattice Boltzmann method with self-consistent thermo-hydrodynamic equilibria (2009)
Sbragaglia, M., Benzi, R., Biferale, L., Chen, H., Shan, X., Succi, S.
Lattice kinetic equations incorporating the effects of external/internal force fields via a shift of the local fields in the local equilibria, are placed within the framework of continuum kinetic...
Hydrokinetic simulations of nanoscopic precursor films in rough channels (2009)
Chibbaro, S., Biferale, L., Binder, K., Dimitrov, D., Diotallevi, F., Milchev, A., ...
We report on simulations of capillary filling of high-wetting fluids in nano-channels with and without obstacles. We use atomistic (molecular dynamics) and hydrokinetic (lattice-Boltzmann) approaches...
Chibbaro, S., Biferale, L., Diotallevi, F., Succi, S., Binder, K., Milchev, A., ...
We present hydrokinetic Lattice Boltzmann and Molecular Dynamics simulations of capillary filling of high-wetting fluids in nano-channels, which provide clear evidence of the formation of thin...
Front pinning in capillary filling of chemically coated channels (2008)
Diotallevi, F., Biferale, L., Chibbaro, S., Puglisi, A., Succi, S.
The dynamics of capillary filling in the presence of chemically coated heterogeneous boundaries is investigated, both theoretically and numerically. In particular, by mapping the equations of front...
S. Succi, A. H. Kritz, J. Vaclavik, S. Succi, L. Muschietti, ...
137 (1984).
Lattice Boltzmann simulations of capillary filling: finite vapour density effects (2008)
Diotallevi, F., Biferale, L., Chibbaro, S., Pontrelli, G., Toschi, F., Succi, S.
Numerical simulations of two-dimensional capillary filling using the pseudo-potential lattice Boltzmann model for multiphase fluids are presented, with special emphasis on the role of finite-vapour...
Capillary filling using Lattice Boltzmann Equations: the case of multi-component fluids (2008)
Chibbaro, S., Biferale, L., Diotallevi, F., Succi, S.
We present a systematic study of capillary filling for a binary fluid by using mesoscopic a lattice Boltzmann model describing a diffusive interface moving at a given contact angle with respect to...
Duality in matrix lattice Boltzmann models (2007)
The notion of duality between the hydrodynamic and kinetic (ghost) variables of lattice kinetic formulations of the Boltzmann equation is introduced. It is suggested that this notion can serve as a...
Capillary filling using Lattice Boltzmann Equations: the case of multi-phase flows (2007)
Diotallevi, F., Biferale, L., Chibbaro, S., Lamura, A., Pontrelli, G., Sbragaglia, M., ...
We present a systematic study of capillary filling for multi-phase flows by using mesoscopic lattice Boltzmann models describing a diffusive interface moving at a given contact angle with respect to...
Generalized lattice Boltzmann method with multirange pseudopotential (2007)
Sbragaglia, M., Benzi, R., Biferale, L., Succi, S., Succi, S., Sugiyama, K., ...
The physical behavior of a class of mesoscopic models for multiphase flows is analyzed in details near interfaces. In particular, an extended pseudopotential method is developed, which permits to...
Generalized Lattice Boltzmann Method with multi-range pseudo-potential (2006)
Sbragaglia, M., Benzi, R., Biferale, L., Succi, S., Sugiyama, K., Toschi, F.
The physical behaviour of a class of mesoscopic models for multiphase flows is analyzed in details near interfaces. In particular, an extended pseudo-potential method is developed, which permits to...
A comparison of single-time relaxation lattice Boltzmann schemes with enhanced stability (2006)
Tosi, F., Ubertini, S., Succi, S., Chen, H., Karlin, I.V.
In the recent years the entropic version of the lattice Boltzmann method (ELB) has made proof of significantly enhanced numerical stability as compared to the standard single-time relaxation form of...
Numerical stability of entropic versus positivity-enforcing Lattice Boltzmann schemes (2006)
Tosi, F., Ubertini, S., Succi, S., Chen, H., Karlin, I.V.
A preliminary study of the non-linear stability properties of entropic schemes versus positivity-enforcing (FIX-UP) schemes is presented for the case of two-dimensional cavity flow. It is shown that,...
A mesoscopic approach for multi-phase flows in nano-corrugated channels (2006)
Benzi, R., Biferale, L., Sbragaglia, M., Succi, S., Toschi, F.
An approach based on a lattice version of the Boltzmann kinetic equation for describing multi-phase flows in nano- and micro-corrugated devices is proposed. We specialize it to describe the...
Lattice Boltzmann versus Molecular Dynamics simulation of nano-hydrodynamic flows (2006)
A fluid flow in a simple dense liquid, passing an obstacle in a two-dimensional thin film geometry, is simulated by Molecular Dynamics (MD) computer simulation and compared to results of Lattice...
Mesoscopic modeling of a two-phase flow in the presence of boundaries: the Contact Angle (2006)
Benzi, R., Biferale, L., Sbragaglia, M., Succi, S., Toschi, F.
We present a mesoscopic model, based on the Boltzmann Equation, for the interaction between a solid wall and a non-ideal fluid. We present an analytic derivation of the contact angle in terms of the...
Surface Roughness-Hydrophobicity Coupling in Microchannel and Nanochannel Flows (2006)
Sbragaglia, M., Benzi, R., Biferale, L., Succi, S., Toschi, F.
An approach based on a lattice version of the Boltzmann kinetic equation for describing multiphase flows in nano- and microcorrugated devices is proposed. We specialize it to describe the...
Surface Roughness-Hydrophobicity Coupling in Microchannel and Nanochannel Flows (2006)
Sbragaglia, M., Benzi, R., Biferale, L., Succi, S., Toschi, F.
An approach based on a lattice version of the Boltzmann kinetic equation for describing multiphase flows in nano- and microcorrugated devices is proposed. We specialize it to describe the...
Surface Roughness-Hydrophobicity Coupling in Microchannel and Nanochannel Flows (2006)
Sbragaglia, M., Benzi, R., Biferale, L., Succi, S., Toschi, F.
An approach based on a lattice version of the Boltzmann kinetic equation for describing multiphase flows in nano- and microcorrugated devices is proposed. We specialize it to describe the...
Mesoscopic modeling of a two-phase flow in the presence of boundaries: The contact angle (2006)
Benzi, R., Biferale, L., Sbragaglia, M., Succi, S., Toschi, F.
We present a mesoscopic model, based on the Boltzmann equation, for the interaction between a solid wall and a nonideal fluid. We present an analytic derivation of the contact angle in terms of the...
A lattice mesoscopic model of dynamically heterogeneous fluids (2005)
We introduce a mesoscopic three-dimensional Lattice Boltzmann Model which attempts to mimick the physical features associated with cage effects in dynamically heterogeneous fluids. To this purpose,...
Mesoscopic two-phase model for describing apparent slip in micro-channel flows (2005)
Benzi, R., Biferale, L., Sbragaglia, M., Succi, S., Toschi, F.
The phenomenon of apparent slip in micro-channel flows is analyzed by means of a two-phase mesoscopic lattice Boltzmann model including non-ideal fluid-fluid and fluid-wall interactins. The...
Lattice formulation of the Fokker-Planck equation (2005)
A lattice version of the Fokker-Planck equation (FPE), accounting for dissipative interactions, not resolved on the molecular scale, is introduced. The lattice FPE is applied to the study of...
Excised acoustic black holes: the scattering problem in the time domain (2005)
Cherubini, C., Federici, F., Succi, S., Tosi, M. P.
The scattering process of a dynamic perturbation impinging on a draining-tub model of an acoustic black hole is numerically solved in the time domain. Analogies with real black holes of General...
Superradiance from BEC vortices: a numerical study (2005)
Federici, F., Cherubini, C., Succi, S., Tosi, M. P.
The scattering of sound wave perturbations from vortex excitations of Bose-Einstein condensates(BEC) is investigated by numerical integration of the associated Klein-Gordon equation. It is found...
Mesoscopic modeling of heterogeneous boundary conditions for microchannel flows (2005)
Benzi, R., Biferale, L., Sbragaglia, M., Succi, S., Toschi, F.
We present a mesoscopic model of the fluid-wall interactions for flows in microchannel geometries. We define a suitable implementation of the boundary conditions for a discrete version of the...
Effects of collisions against thermal impurities in the dynamics of a trapped fermion gas (2004)
Capuzzi, P., Vignolo, P., Toschi, F., Succi, S., Tosi, M. P.
We present a theoretical study of the dynamical behavior of a gas made of ultracold fermionic atoms, which during their motions can collide with a much smaller number of thermal bosonic impurities....
Ansumali, S., Karlin, I.V., Succi, S.
A mean-field approach (filtering out subgrid scales) is applied to the Boltzmann equation in order to derive a subgrid turbulence model based on kinetic theory. It is demonstrated that the only...
A lattice Boltzmann study of non-hydrodynamic effects in shell models of turbulence (2004)
Benzi, R., Biferale, L., Sbragaglia, M., Succi, S., Toschi, F.
A lattice Boltzmann scheme simulating the dynamics of shell models of turbulence is developed. The influence of high order kinetic modes (ghosts) on the dissipative properties of turbulence dynamics...
Lattice Boltzmann model with hierarchical interactions (2004)
We present a numerical study of the dynamics of a non-ideal fluid subject to a density-dependent pseudo-potential characterized by a hierarchy of nested attractive and repulsive interactions. It is...
A lattice Boltzmann model with random dynamical constraints (2004)
In this paper we introduce a modified lattice Boltzmann model (LBM) with the capability of mimicking a fluid system with dynamic heterogeneities. The physical system is modeled as a one-dimensional...
Transition to hydrodynamics in colliding fermion clouds (2003)
Toschi, F., Capuzzi, P., Succi, S., Vignolo, P., Tosi, M. P.
We study the transition from the collisionless to the hydrodynamic regime in a two-component spin-polarized mixture of 40K atoms by exciting its dipolar oscillation modes inside harmonic traps. The...
Galilean-invariant lattice-Boltzmann models with H theorem (2003)
Boghosian, B.M., Love, P.J., Coveney, P.V., Karlin, I.V., Succi, S., Yepez, J.
We demonstrate that the requirement of Galilean invariance determines the choice of H function for a wide class of entropic lattice-Boltzmann models for the incompressible Navier-Stokes equations....
Entropic Lattice Boltzmann Method for Large Scale Turbulence Simulation (2003)
Karlin, I. V., Ansumali, S., DE Angelis, E., Öttinger, H. C., Succi, S.
Recently, a minimal kinetic model for fluid flow, known as entropic lattice Boltzmann method, has been proposed for the simulation of isothermal hydrodynamic flows. At variance with previous Lattice...
Toschi, F., Vignolo, P., Succi, S., Tosi, M. P.
We develop a numerical method to study the dynamics of a two-component atomic Fermi gas trapped inside a harmonic potential at temperature T well below the Fermi temperature Tf. We examine the...
Colloquium: Role of the H theorem in lattice Boltzmann hydrodynamic simulations (2002)
Succi, S., Karlin, I.V., Chen, H.
In the last decade, minimal kinetic models, and primarily the lattice Boltzmann equation, have met with significant success in the simulation of complex hydrodynamic phenomena, ranging from slow...
Polymer dynamics in wall turbulent flow (2002)
Ilg, P., De Angelis, E., Karlin, I.V., Casciola, C.M., Succi, S.
The dynamics of dilute polymer solutions is investigated in wall turbulent flow. A realistic turbulent flow field is obtained by a fully coupled direct numerical simulation of a drag-reducing polymer...
Vignolo, P., Chiofalo, M. L., Succi, S., Tosi, M. P.
We present a new numerical method for studying the dynamics of quantum fluids composed of a Bose-Einstein condensate and a cloud of bosonic or fermionic atoms in a mean-field approximation. It...
A lattice Boltzmann study of reactive microflows (2001)
Gabriellii, A., Succi, S., Kaxiras, E.
The role of geometrical micro-barriers on the conversion efficiency of reactive flows in narrow three-dimensional channels of millimetric size is investigated. Using a Lattice-Boltzmann-Lax-Wendroff...
Succi, S., Gabrielli, A., Smith, G., Kaxiras, E.
We investigate the effects of geometrical micro-irregularities on the conversion efficiency of reactive flows in narrow channels of millimetric size. Three-dimensional simulations, based upon a...
Probing the energy bands of a Bose-Einstein condensate in an optical lattice (2000)
Chiofalo, M. L., Succi, S., Tosi, M. P.
We simulate three experimental methods which could be realized in the laboratory to probe the band excitation energies and the momentum distribution of a Bose-Einstein condensate inside an optical...
Supersymmetry solution for finitely extensible dumbbell model (2000)
Ilg, P., Karlin, I. V., Succi, S.
Exact relaxation times and eigenfunctions for a simple mechanical model of polymer dynamics are obtained using supersymmetry methods of quantum mechanics. The model includes the finite extensibility...
Statistical characterization of the fixed income market efficiency (2000)
Bernaschi, M., Grilli, L., Marangio, L., Succi, S., Vergni, D.
We present cross and time series analysis of price fluctuations in the U.S. Treasury fixed income market. By means of techniques borrowed from statistical physics we show that the correlation among...
Learning Cascade in the Immune System Dynamics: A Numerical Simulation (1999)
M. Bernaschi, F. Castiglione, P. Seiden, S. Succi
Upon interpolating these bumps with Gaussian profiles, satisfactory agreement with numerical results was obtained. Besides sheer interpretation of numerical data, the assumption of Gaussian profiles...
An high performance simulator of the Immune Response (1999)
M. Bernaschi, F. Castiglione, S. Succi
The application of concepts and methods of statistical mechanics to biological problems is one of the most promising frontiers of computational physics. For instance Cellular Automata (CA), i.e....
Intermittency and structure functions in channel flow turbulence (1998)
Toschi, F., Amati, G., Succi, S., Benzi, R., Piva, R.
We present a study of intermittency in a turbulent channel flow. Scaling exponents of longitudinal streamwise structure functions, $\zeta_p /\zeta_3$, are used as quantitative indicators of...
Intermittency and eddy-viscosities in dynamical models of turbulence (1998)
Benzi, R., Biferale, L., Succi, S., Toschi, F.
The dependence of intermittent inertial properties on ultraviolet eddy viscosity closures is examined within the framework of shell-models of turbulent flows. Inertial intermittent exponents turn out...
A Lattice Boltzmann Scheme for Semiconductor Dynamics (1998)
We discuss an extension of the Lattice Boltzmann method which may prove useful for the numerical study of electron transport in semiconductors.
A parallel algorithm for the simulation of the Immune Response (1997)
M. Bernaschi, F. Castiglione, S. Succi
Introduction Most attempts to simulate the behaviour of biological systems are faced with the need of manipulating and processing vast amounts of data. This stems from the huge number of degrees of...
Lattice kinetic theory for numerical combustion (1996)
Succi, S., Bella, G., Papetti, F.
A simple extension of the Lattice Boltzmann equation is proposed, which permits to handle reactive flow dynamics in the limit of fast chemistry at virtually no extra-cost with respect to the purely...
Two-dimensional Navier--Stokes simulation of deformation and break up of liquid patches (1995)
Zaleski, S., Li, Jie, Succi, S.
The large deformations and break up of circular 2D liquid patches in a high Reynolds number (Re=1000) gas flow are investigated numerically. The 2D, plane flow Navier--Stokes equations are directly...
Numerical Solution of the Schroedinger Equation using a Quantum Lattice Boltzmann Equation} (1993)
The quantum Lattice Boltzmann equation (QLBe), a new variant of the lattice Boltzmann equation, specifically designed to describe non relativistic quantum motion, is validated for the case of a...
Lattice Boltzmann Equation for Quantum Mechanics (1993)
It is shown that the Lattice Boltzmann equation for hydrodynamics can be extended in such a way as to describe non-relativistic quantum mechanics.
Finite-Element Modeling of Weak Plasma Turbulence (1989)
Succi, S., Radicati, G., Robert, Y., Appert, K., Vaclavik, J.
Computational Models for Wave Particle Interactions (1986)
Succi, S., Appert, K., Core, W., Hamnen, H., Hellsten, T., Vaclavik, J.
Computing of Rf Heating and Current Drive in Tokamaks (1986)
Appert, K., Hellsten, T., Sauter, O., Succi, S., Vaclavik, J., Villard, L.
Computing of RF heating and current-drive in tokamaks (1986)
Appert, K., Hellsten, T., Sauter, O., Succi, S., Vaclavik, J., Villard, L.
Study of the ideal MHD stability limit for JET (1985)
Saurenmann, H., Semenzato, S., Succi, S., Gruber, R., Troyon, F.
Computational models for wave-particle interactions (1985)
Succi, S., Appert, K., Core, W., Hamnén, H., Hellsten, T., Vaclavik, J.
Dependence of LH-generated currents on the spectral distribution of the RF source (1984)
Succi, S., Appert, K., Muschietti, L., Vaclavik, J., Wersinger, J.M.
Mhd-Limits to Plasma-Confinement (1984)
Troyon, F., Gruber, R., Saurenmann, H., Semenzato, S., Succi, S.
On the Generation of Superthermal Electrons in Lower-Hybrid Current-Drive Experiments (1984)
Succi, S., Appert, K., Muschietti, L., Vaclavik, J., Wersinger, J. M.
On the generation of superthermal electrons in lower-hybrid current-drive experiments (1984)
Succi, S., Appert, K., Muschietti, L., Vaclavik, J., Wersinger, J.M.
Rf Heating and Current Drive (1983)
Vaclavik, J., Appert, K., Kritz, A. H., Muschietti, L., Succi, S., Villard, L.
MHD-limits to plasma confinement (1983)
Gruber, R., Saurenmann, H., Semenzato, S., Succi, S., Troyon, F.
Statistical characterization of the fixed income market efficiency
M. Bernaschi, L. Grilli, L. Marangio, S. Succi, D. Vergni
We present cross and time series analysis of price fluctuations in the U.S. Treasury fixed income market. By means of techniques borrowed from statistical physics we show that the correlation among...