Normally, flow field is described with governing equations, such as the Navier-Stokes equations. However, for complex flow including multiphase and reactive flow such as combustion, this approach may not be suitable. As an alternative approach, Lattice Gas Automata (LGA) has been used to simulate fluid with mesoscopic particles by assuming that space and time are discrete, and the physical quan...

In 1911 Theodore von Kármán first noticed the unusual alternating stream of vortices that result from fluid flowing past a cylinder. This phenomenon, now known as a von Kármán vortex street, only occurs for fluids with particular characteristics. The most important attribute, is the Reynolds number, which is the ratio of inertial forces to viscous forces in the fluid. It turns out that vortices...

The interaction between a fluid and a granular material plays a crucial role in a large class of phenomena such as river-bed morphology and river transport of sediments, aeolian sand dunes and ripples dynamics. Standard models involve deterministic continuum equations or, alternatively, Lattice Boltzmann and Lattice Gas Cellular Automata. We here introduce a toy-model to address the issue of ri...

Communication protocols can be formally described by the Communicating Finite-State Machines (CFSM) model. This model is expressive, but not expressive enough to deal with complex protocols that involve structured messages encapsulating integers or lists of integers. This is the reason why we propose an extension of this model : the Symbolic Communicating Machines (SCM). We also propose an appr...

Abs t r ac t . We present computational aspects of a parallel implementation of a multi-species thermal lattice gas. This model, which can be used to simulate reaction-diffusion phenomena in a mixture of different fluids, is analyzed for a fluid system at global equilibrium. Large system sizes combined with long-time simulation makes parallelization a necessity. We show that the model can be ea...

We consider a simple lattice gas model to simulate erosion, deposition and particle transport in a streaming uid. In our approach, the uid is described by a standard lattice Boltzmann model and the granular suspension by a multiparticle cellular automata. A good agreement is obtained between the predictions of the model and eld measurements, as observed by analyzing the deposition patterns resu...

Moisture flow in porous media is the driving force behind early age drying shrinkage. Fracture in the interfacial transition zone (ITZ), between cement paste and aggregateinclusion, is related to restraint caused by, among others, aggregates that obstruct free deformation of the paste. Environmental Scanning Electron Microscope (ESEM) test results are used as a base for the developed method for...

The lattice gas automaton (LGA) for di usive-convective transport dynamics is constructed in terms of LGA building elements: propagation and mixing [1, 13]. The LGA transport dynamics is described by microdynamical equations and discrete Boltzmann equations, from which the corresponding macroscopic PDE's are derived [1, 13].

The past two decades showed a rapid growing of physically-based modeling of fluids for computer graphics applications. In this area, a common top down approach is to model the fluid dynamics by Navier-Stokes equations and apply a numerical techniques such as Finite Differences or Finite Elements for the simulation. In this paper we focus on fluid modeling through Lattice Gas Cellular Automata (...

Euclidean n-space can be discretely represented as an n-dimensional lattice, and a mesh computer can be naturally associated with each (possibly nite) subset of such a lattice, where the processors are at the lattice points in the subset and the mesh's interconnections correspond to minimal length vectors between the lattice points associated with processors. An algorithm template is presented ...