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Accuracy comparison of different approaches for vortex sheet discretization on the airfoil in vortex particles method
(CIMNE, 2017)
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The hierarchy of numerical schemes is developed for the solution of the boundary integral equation which arises in the vortex particles method. Two different approaches are considered and numerical schemes are presented, ...
Modelling of chemical reactions in metallurgical processes
(CIMNE, 2017)
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Since the last three decades, the study of reduction of iron-ore has gained much attention as it is considered a core process for the steel industry. Fluidized bed and moving bed reactors are utilized to reduce the iron-ore ...
MPM simulations of granular column collapse with a new constitutive model for the solid-fluid transition
(CIMNE, 2017)
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Dry granular flows are very common both in many natural phenomena (flow-like landslides) as well as in industrial processes. To model granular flows in the framework of continuum mechanics, a key issue is the formulation ...
Particle concentration and stokes number effects in multi-phase turbulent channel flows
(CIMNE, 2017)
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This investigation examines the effect that particle concentration has on the dynamics of two-phase turbulent channel flows at low and high density ratios. In the literature, little explanation is offered for the existence ...
Investigations of quasi-static vortex-structures in 3D sand specimens based on DEM and Helmholtz-Hodge vector field decomposition
(CIMNE, 2017)
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The paper presents some three-dimensional simulation results of granular vortex-structures in cohesionless initially dense sand during quasi-static plane strain compression. The sand behaviour was simulated using the ...
Treatment volume of aedes albopictus with X rays generated from electrons
(CIMNE, 2017)
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Irradiation is a common method used for sterilizing objects in several fields. In the entomology sector, insects are sterilized through irradiation and released in to the wild to sexually compete with the population at ...
A model of granular materials partially cemented by bacterial calcite
(CIMNE, 2017)
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Nature aggregates granular materials such as sand, silt and clay into form beach rocks, anthills and other forms of microbialites. A common bio-geo-chemical cementation occurs due to the mineralization of calcium through ...
Calculation of nitrogen flow in nickel micronozzle based on numerical approaches of gas and molecular dynamics
(CIMNE, 2017)
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The work is devoted to the modeling of gas flows in micronozzles. The complexity of studying such processes is connected both with the small sizes of technical system that makes it difficult to carry out the natural ...
Smooth plasticity and damage model for the material point method
(CIMNE, 2017)
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In the Material Point Method (MPM) the structure is discretized into a set of material points that hold all the state variables of the system [1] such as stress, strain, velocities etc. A background grid is employed and ...
Comparison of two DEM strategies for modelling cortical meshes
(CIMNE, 2017)
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This work deals with the particle-based modelling of cortical wire meshes. Such meshes are being used in many engineering applications but their modelling is particularly complex because of the common large displacement ...