Results 131 to 140 of about 296,315 (170)

Simulation of traffic flows in a network

Communications of the ACM, 1969
A computer simulation program which deals with traffic flows in the network of a large area is described. Each road is segmented into blocks of several ten-meter lengths and is represented by a bidirectional list in computer memory. The movement of cars, i.e. the transfer of cars from one block to the next, is expressed by a proper formula.
Toshiyuki Sakai, Makoto Nagao
openaire   +2 more sources

Simulation of Flow and Motion of Lifeboats

Volume 5: Polar and Arctic Sciences and Technology; CFD and VIV, 2009
Lifeboats are important for safety of passengers and crew on floating vessels and offshore platforms. They need to be designed so that evacuation can be performed quickly and safely in case of emergency. This requires that the lifeboat is not damaged during water entry, that it moves afterwards away from the dangerous area, and that accelerations ...
Mørch, Hans Jørgen, Peric, Milovan, Schreck, Eberhard, el Moctar, Bettar Ould, Zorn, Tobias   +4 more
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Numerical simulation of glottal flow

Computers in Biology and Medicine, 2013
In cases of permanent immobility of both vocal folds patients have difficulties with breathing but rarely with voicing. However, clinical experience shows that the shape of the larynx (voice box) seems to have a significant influence on the degree of airflow and breathing pattern.
Anna Hundertmark-Zausková, Ragnar Lehmann, Markus M. Hess, Frank Müller 0007   +3 more
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Numerical Simulation of Incompressible Fluid Flows

Concurrency: Practice and Experience, 1990
AbstractIn this paper we discuss temporal, spatial, and architectural aspects of the numerical simulation of time‐dependent incompressible fluid flows. In particular, we consider: high‐order operator‐integration‐factor time‐splitting methods; sliding‐mesh spectral mortar‐element spatial discretizations; and data‐parallel distributed‐memory medium ...
George Anagnostou, Yvon Maday, Anthony T. Patera, Paul F. Fischer, Einar M. Rønquist   +4 more
openaire   +1 more source

Flow Simulation in Stochastic Porous Media

SIMULATION, 2000
A family of gamma distributions can be used to model the pore size distributions in a range of stochastic porous media. Our simu lator generates distributional and net flow data for different fluid flow regimes through such networks. The outputs from the simu lation show strong relationships between mean flow and the variance of pore radii for ...
Dodson, C. T.J., Sampson, W. W.; id_orcid 0000-0003-2249-9116   +1 more
openaire   +3 more sources

An Embedded Flow Simulation Methodology for Flow over Fence Simulations

2017
In this paper, we report the development of embedding a flow simulation methodology (FSM) (Fasel HF, von Terzi DA, Sandberg RD (2006) A methodology for simulating compressible turbulent flows. J Appl Mech 3:405–412 [1]), (Weinmann M, Sandberg RD, Doolan C (2014) Tandem cylinder flow and noise predictions using a hybrid RANS/LES approach. Int. J.
K. Anupindi, R. D. Sandberg
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Flow-forming and flow formability simulation

The International Journal of Advanced Manufacturing Technology, 2008
Forward flow forming of tubes have been simulated using an explicit commercial finite element program. Variation of contact geometry considering plastic flow has been calculated based on the proposed criterion. Also flow formability of tube materials have been calculated during forward flow-forming process.
M. H. Parsa, A. M. A. Pazooki, M. Nili Ahmadabadi   +2 more
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Numerical Simulation of a Flow Conditioner

2004
During the last decade, numerical techniques have been used for the simulation of flow conditioners, and therefore a validation based on experimental data is necessary. In this paper the finite volumes technique is employed to model the use of the New Zanker flow conditioner under low-level disturbance conditions, such as those produced by an out of ...
H. F. Abdulrahman, A. Frattolillo, N. Massarotti   +2 more
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Flow Simulations on Overlapping Grids

2002
Computations on composite overlapping grids require a mix of structured and unstructured operations. We describe a computational framework for parallel computers using data parallel arrays for the structured component grids. The unstructured interpolation is efficiently parallelized outside the data parallel environment using MPI.
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Simulation of in-plane flow imaging

Concepts in Magnetic Resonance, 1999
Two methods of simulating the imaging process in magnetic resonance (MR) are explained: namely, the k-space and the isochromat summation methods. The latter method is more closely related to the actual behavior of magnetic spins, and is used in the remainder of this work.
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