14,415 research outputs found
The origin of interparticle potential of electrorheological fluids
The particles of electrorheological fluids can be modelled as dielectric
spheres (DS) immersed in a continuum dielectric. When an external field is
applied, polarization charges are induced on the surfaces of the spheres and
can be represented as point dipoles placed in the centres of the spheres. When
the DSs are close to each other, the induced charge distributions are distorted
by the electric field of the neighbouring DSs. This is the origin of the
interaction potential between the DSs. The calculation of this energy is very
time consuming, therefore, the DS model cannot be used in molecular
simulations. In this paper, we show that the interaction between the point
dipoles appropriately approximates the interaction of DSs. The polarizable
point dipole model provides better results, but this model is not pair-wise
additive, so it is not that practical in particle simulations.Comment: 10 pages, 5 figure
Real Time Wake Computations using Lattice Boltzmann Method on Many Integrated Core Processors
This paper puts forward an efficient Lattice Boltzmann method for use as a wake simulator suitable for
real-time environments. The method is limited to low speed incompressible flow but is very efficient and
can be used to compute flows “on the fly”. In particular, many-core machines allow for the method to be
used with the need of very expensive parallel clusters. Results are shown here for flows around
cylinders and simple ship shapes
Real Time Wake Computations using Lattice Boltzmann Method on Many Integrated Core Processors
This paper puts forward an efficient Lattice Boltzmann method for use as a wake simulator suitable for
real-time environments. The method is limited to low speed incompressible flow but is very efficient and
can be used to compute flows “on the fly”. In particular, many-core machines allow for the method to be
used with the need of very expensive parallel clusters. Results are shown here for flows around
cylinders and simple ship shapes
Main specifications of CFD codes for WUIVIEW activities
CFD simulations will be the core activity of the WUVIEW performance based fire safety analysis. The purpose of this document is to provide WUIVIEW partners with a general overview of the CFD codes to be used in the Action.
The general simulation framework is described, particularly highlighting data inputs and scenario description requirements, to be developed in subsequent WUIVIEW WPs. This TN provides the technical foundations and main specifications of the databases to be designed within the WUIVIEW working program (ongoing action by UPC).Postprint (updated version
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