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Abstracts on Pattern Formation and Lattice-Gas Automata [article]

Gary Doolen, Anna Lawniczak (Guelph Univ.)
1993 arXiv   pre-print
and LATTICE-GAS AUTOMATA, JUNE 07-12, 1993  ...  This article contains 39 pages of abstracts of invited and poster presentations for the FIELDS INSTITUTE FOR RESEARCH IN MATHEMATICAL SCIENCES AND NATO ADVANCED RESEARCH WORKSHOP PROGRAM ON PATTERN FORMATION  ...  Discrete models seems to be more convenient in view of fluid dynamic applications and particularly in cellular automata research.  ... 
arXiv:comp-gas/9307004v1 fatcat:6yrkrd6pa5goxnmnyqycytptiy

Simulating debris flows through a hexagonal cellular automata model: SCIDDICA S3–hex

D. D'Ambrosio, S. Di Gregorio, G. Iovine
2003 Natural Hazards and Earth System Sciences  
Cellular Automata (CA) represent a formal frame for dynamical systems, which evolve on the base of local interactions. Some types of landslide, such as debris flows, match well this requirement.  ...  The latest hexagonal release (S 3-hex ) of the deterministic model SCIDDICA, specifically developed for simulating debris flows, is described.  ...  Modelling macroscopic phenomena Surface-flow phenomena, like debris flows, take place on a large space scale.  ... 
doi:10.5194/nhess-3-545-2003 fatcat:wsv3tk5h3fd7ppkrcngmuw2fgy

A Cellular Automata Model for Simulating Pyroclastic Flows and First Application to 1991 Pinatubo Eruption [chapter]

Gino M. Crisci, Salvatore Di Gregorio, Rocco Rongo, William Spataro
2003 Lecture Notes in Computer Science  
PYR, a first Cellular Automata model for pyroclastic flows, generated by collapsing volcanic columns, is reported in this paper. It was applied to the 1991 Pinatubo eruption (Philippines islands).  ...  The model is very simple, but it is able to capture the three-dimensional evolution of the phenomenon in so far as it spreads.  ...  Daag for supplying pre-eruptive and post-eruptive morphology together with studies on the phenomenon features and evolution.  ... 
doi:10.1007/3-540-44860-8_34 fatcat:ayi2tcr6kngnpe24gzrlhxctga

OpenMP parallelization of the SCIARA Cellular Automata lava flow model: performance analysis on shared-memory computers

Marco Oliverio, William Spataro, Donato D'Ambrosio, Rocco Rongo, Giuseppe Spingola, Giuseppe A. Trunfio
2011 Procedia Computer Science  
Moreover, they may be also difficult to be modeled through standard approaches, such as differential equations (cf. [6] for the case of lava flows), and Macroscopic Cellular Automata (MCA) [7] can represent  ...  This paper shows performance results of the parallelization of a well-known CA model for simulating lava flowsthe SCIARA modelin a shared memory environment, by means of OpenMP, an Application Programming  ...  Regarding this work, an improved version of the SCIARA Cellular Automata model for simulating lava flows was adopted therefore.  ... 
doi:10.1016/j.procs.2011.04.029 fatcat:nri36tlunbct5ffgjmlj74j6km

From examination of natural events to a proposal for risk mitigation of lahars by a cellular-automata methodology: a case study for Vascún valley, Ecuador

Valeria Lupiano, Francesco Chidichimo, Guillermo Machado, Paolo Catelan, Lorena Molina, Claudia R. Calidonna, Salvatore Straface, Gino M. Crisci, Salvatore Di Gregorio
2020 Natural Hazards and Earth System Sciences  
LLUNPIY/3r, a version of the cellular-automaton model LLUNPIY for lahar simulations, is presented.  ...  An investigation is performed here in order to reproduce such situations in a controlled way by the use of LLUNPIY/3r simulations.  ...  Indirect financial support was supplied by the University of Calabria. Review statement. This paper was edited by Filippo Catani and reviewed by two anonymous referees.  ... 
doi:10.5194/nhess-20-1-2020 fatcat:xfb7237e6nf4bgzd3qof5b2ujy

The latest release of the lava flows simulation model SCIARA: First application to Mt Etna (Italy) and solution of the anisotropic flow direction problem on an ideal surface

William Spataro, Maria V. Avolio, Valeria Lupiano, Giuseppe A. Trunfio, Rocco Rongo, Donato D'Ambrosio
2010 Procedia Computer Science  
This paper presents the latest developments of the deterministic Macroscopic Cellular Automata model SCIARA for simulating lava flows.  ...  In the next section Macroscopic Cellular Automata are briefly described, while the new SCIARA model is illustrated in Section 3.  ...  Discussion We have presented the latest release of the Macroscopic Cellular Automata model SCIARA for simulating lava flows.  ... 
doi:10.1016/j.procs.2010.04.004 fatcat:7ubtlmca3ngshlhkkwvp7754y4

3D Numerical Modelling of Submerged and Coastal Landslide Propagation [chapter]

P. Mazzanti, F. Bozzano, M. V. Avolio, V. Lupiano, S. Di Gregorio
2010 Submarine Mass Movements and Their Consequences  
A Cellular Automata model is described which has been specifically designed for combined subaerial-submerged landslides.  ...  Calibration and validation of these models upon a real and well constrained coastal debris flow at Lake Albano (Rome, Italy) is also presented.  ...  The Cellular Automata Code SCIDDICA SS2: Theory and Example SCIDDICA-SS2 model is a Macroscopic Cellular Automaton for simulating subaerialsubaqueous flow-type landslides specifically developed by some  ... 
doi:10.1007/978-90-481-3071-9_11 fatcat:bsv5u2agozd4hgm26knfnqtwxi

Survey on Modelling and Techniques for Friction Estimation in Automotive Brakes

Vincenzo Ricciardi, Klaus Augsburg, Sebastian Gramstat, Viktor Schreiber, Valentin Ivanov
2017 Applied Sciences  
temperature distribution; (ii) non-uniform pressure distribution over the pad surface owing to calliper deformation, especially for low-pressure applications; (iii) the presence of residual grinding torque  ...  As an example, friction modelling has been a matter of study for control engineering due to the necessity of developing estimators to compensate for the friction forces of the electric machines for high-precision  ...  We acknowledge support for the Article Processing Charge by the German Research Foundation and the Open Access Publication Fund of the Technische Universität Ilmenau.  ... 
doi:10.3390/app7090873 fatcat:q2nmxeqm3jeonebq6nw55riubq

Modeling the Friction Boundary Layer of an Entire Brake Pad with an Abstract Cellular Automaton

Georg-Peter Ostermeyer, Joshua Merlis
2018 Lubricants  
The "Abstract Cellular Automaton" simulations accurately model the patch coverage state of a brake pad surface based on the system's load history.  ...  The associated phenomena are primarily responsible for the dynamics of brake systems.  ...  For example, the highly-detailed patch shape and location information attained using the grid-based cellular automata does not have a significant influence on the global macroscopic results.  ... 
doi:10.3390/lubricants6020044 fatcat:rnfurku4p5bbnhaf6qcbiqmq7y

Cellular Automaton for Realistic Modelling of Landslides [article]

Enrico Segre, Istituto di Cosmogeofisica, CNR, Torino, Italy and Chiara Deangeli, Dipartimento di Georisorse e Territorio, Politecnico, Torino, Italy
1995 arXiv   pre-print
The model is based on a lattice, in which debris can be transferred among nearest neighbors according to established empirical relationships for granular flows.  ...  A numerical model is developed for the simulation of debris flow in landslides over a complex three dimensional topography.  ...  This work has been carried on by means of the computer facilities at the Istituto di Cosmogefisica of the CNR, Torino, for whose warm hospitality we are grateful. E. S. wishes also to thank C.  ... 
arXiv:comp-gas/9407002v2 fatcat:kf2edszlyjamto7a4th6iu6jyu

A Preliminary Approach of 3D Simulation of Soil Surface Degradation by Rainfall [article]

Gilles Valette, Michel Herbin, Laurent Lucas, Joël Léonard
2005 Eurographics Workshop on Natural Phenomena  
Erosion modelling has been addressed by soil scientists but also by computer graphic scientists in order to add realism to virtual landscapes.  ...  A soil surface degradation model could allow to predict this evolution of the soil surface structure, and even to help choosing adequate tillage practices and sowing dates.  ...  [ACD * 03] suggest a Cellular Automata (CA) model for soil erosion by water.  ... 
doi:10.2312/nph/nph05/041-049 fatcat:gxn2b2k6qjenth32qezvduiyfm

Modeling of debris flow depositional patterns according to the catchment and sediment source area characteristics

Davide Tiranti, Chiara Deangeli
2015 Frontiers in Earth Science  
Debris flow simulations have been performed with a 3D numerical code based on Cellular Automata Method.  ...  SIMULATION OF DEPOSITIONAL PATTERNS Debris flow deposition patterns in the selected catchments have been simulated by a 3D numerical code based on Cellular Automata Method.  ... 
doi:10.3389/feart.2015.00008 fatcat:kwnvxdemhzhcvhd22h4sk4jaxu

Multiphysics Modeling and Numerical Simulation in Computer-Aided Manufacturing Processes

Tomasz Trzepieciński, Francesco dell'Isola, Hirpa G. Lemu
2021 Metals  
Numerical modeling is used to predict stress and temperature distribution, springback, material flow, and prediction of phase transformations, as well as for determining forming forces and the locations  ...  Intelligent production driven by the concept of Industry 4.0 and the demand for high-quality equipment in the aerospace and automotive industries forces the development of manufacturing techniques to progress  ...  [82] presented the innovation of coupling an FE-based model with a cellular automata (CA) model to predict microstructure evolution during selective electron beam melting (SEBM).  ... 
doi:10.3390/met11010175 fatcat:gytpvjy2kbc23ebgisrlmwky4e

Predicting solid compounds via global exploration of the energy landscape of solids on theab initiolevel without recourse to experimental information

J. Christian Schön, Klaus Doll, Martin Jansen
2010 Physica status solidi. B, Basic research  
In this contribution we demonstrate how novel developments have changed the field in recent years from a descriptive to a predictive approach and have led to the modeling of properties and functions of  ...  essential phenomena and processes in materials science and engineering.  ...  Also automaton models (lattice gas, cellular automata) and pseudoparticle dynamical approaches occur at that scale.  ... 
doi:10.1002/pssb.200945246 fatcat:z272jd2cardfnmewpgvmzepw6m

FRICTION BEHAVIOR OF ALUMINUM BRONZE REINFORCED BY BORON CARBIDE PARTICLES

Alexey Yu. Smolin, Andrey V. Filippov, Evgeny V. Shilko
2021 Facta Universitatis. Series: Mechanical Engineering  
A promising composite material for tribotechnical applications based on aluminum bronze with reinforcing boron carbide particles fabricated by a special electron beam additive deposition technique was  ...  Tribological experiments showed that reinforcing by carbide particles allowed reducing the coefficient of friction from 0.26 to 0.19 and improving the wear resistance by 2.2 times.  ...  Actually, the plastic flow theory using the von Mises criterion is adopted for modeling plasticity in MCA. A pair of automata can be in one of two possible states: bonded and unbonded.  ... 
doi:10.22190/fume201226013s fatcat:uxelurxuofaudgxudpbzmvp43a
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