Results 51 to 60 of about 11,390 (166)

Polyhedral meshing as an innovative approach to computational domain discretization of a cyclone in a fluidized bed CLC unit

open access: yesE3S Web of Conferences, 2017
Chemical Looping Combustion (CLC) is a technology that allows the separation of CO2, which is generated by the combustion of fossil fuels. The majority of process designs currently under investigation are systems of coupled fluidized beds.
Sosnowski Marcin   +2 more
doaj   +1 more source

Towards reproducible experimental studies for non-convex polyhedral shaped particles

open access: yesEPJ Web of Conferences, 2017
The packing density and flat bottomed hopper discharge of non-convex polyhedral particles are investigated in a systematic experimental study. The motivation for this study is two-fold.
Wilke Daniel N.   +3 more
doaj   +1 more source

A polyhedral approach to the multi-layer crossing minimization problem [PDF]

open access: yes, 1997
We study the multi-layer crossing minimization problem from a polyhedral point of view. After the introduction of an integer programming formulation of the multi-layer crossing minimization problem, we examine the 2-layer case and derive several classes of facets of the associated polytope. Preliminary computational results for 2- and 3-layer instances
Michael Jünger   +3 more
openaire   +3 more sources

The influence of air duct geometry on air jet direction in aircraft cabin ventilated by mixing ventilation.

open access: yesEPJ Web of Conferences, 2013
The paper deals with instigation of influence of air duct geometry on air jet direction in aircraft cabin ventilated by mixing ventilation. CFD approach was used for investigation and model geometry was based on small aircraft cabin mock-up geometry ...
Jícha M., Fišer J.
doaj   +1 more source

A Polyhedral Approach for Scalar Promotion

open access: yes, 2021
Memory accesses are a well known bottleneck whose impact might be mitigated by using properly the memory hierarchy until registers. In this paper, we address array scalarization, a technique to turn temporary arrays into a collection of scalar variables to be allocated to registers.
Sadler, Alec   +2 more
openaire   +2 more sources

Indoor Characterization of Power Delay Profile Using Equivalent Antenna Representation in Uniform FDTD Lattices

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
It is shown that proper representation of transmitting and receiving antennas in indoor environments are decisive for accurate prediction of electromagnetic power transfer parameters using the standard 3D-FDTD method.
Bruno W. Martins   +4 more
doaj   +1 more source

Numerical Analysis of Flow in Building Arrangement: Computational Domain Discretization

open access: yesApplied Sciences, 2019
The progress in environmental investigations such as the analysis of building arrangements in an urban environment could not have been expanded without the use of computational fluid dynamics (CFD) as a research tool.
Marcin Sosnowski   +4 more
doaj   +1 more source

Numerical simulation of the compaction of crushable grains in 3D

open access: yesEPJ Web of Conferences, 2017
Grain fragmentation is simulated by means of a three-dimensional discrete element approach called bonded-cell method (BCM). In this method, grains and potential fragments may have any polyhedral shape and size, capturing the geometrical complexity of ...
Cantor David   +3 more
doaj   +1 more source

Stability Analysis of Concrete Dam Foundations Using a Particle/Surface Interface Model for Large Displacements

open access: yesInfrastructures
In concrete dam foundations, failure mechanisms are primarily influenced by natural rock discontinuities, the dam foundation interface, or weaker strata.
Nuno Monteiro Azevedo   +2 more
doaj   +1 more source

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