CFD Modelling and Simulation
Browse by
Recent Submissions
-
Normal lubrication force between spherical particles immersed in a shear-thickening fluid
(Physics of Fluids, 2018-12-07)In this work, the inverse bi-viscous model [Physics of Fluids 29, 103104 (2017)] is used to describe a shear-thickening fluid. An analytical velocity profile in a planar Poiseuille flow is utilized to calculate an approximate ... -
Apparent slip mechanism between two spheres based on solvent rheology: Theory and implication for the shear thinning of non-Brownian suspensions
(Physical Review Fluids, 2018-12-10)Analytical results for the apparent slip between two spheres in a simple biviscous model of a shear thinning fluid are presented. Velocity profiles and apparent slip lengths along the surfaces are analyzed in order to ... -
On intermediate-scale open-sea experiments on floating offshore structures: Feasibility and application on a spar support for offshore wind turbines
(Marine Structures, 2018-06-28)Experimental investigation of floating structures represents the most direct way for achieving their dynamic identification and it is particularly valuable for relatively new concepts, such as floating supports for offshore ... -
On Adomian Based Numerical Schemes for Euler and Navier-Stokes Equations, and Application to Aeroacoustic Propagation
(2018-03-12)In this thesis, an Adomian Based Scheme (ABS) for the compressible Navier-Stokes equations is constructed, resulting in a new multiderivative type scheme not found in the context of fluid dynamics. Moreover, this scheme ... -
A numerical study on the hydrodynamic impact of device slenderness and array size in wave energy farms in realistic wave climates
(Ocean Engineering, 2017-07-10)The future of wave energy converters lies in the design and realization of farms comprising of several devices, given the level of actual power flow for the individual devices and because of several operational issues. ... -
Layout Optimisation of Wave Energy Converter Arrays
(Energies, 2017-08-24)This paper proposes an optimisation strategy for the layout design of wave energy converter (WEC) arrays. Optimal layouts are sought so as to maximise the absorbed power given a minimum q-factor, the minimum distance between ... -
Group-level progressive alterations in brain connectivity patterns revealed by diffusion-tensor brain networks across severity stages in Alzheimer's disease
(Frontiers in Aging Neuroscience, 2017-07-01)Alzheimer’s disease (AD) is a chronically progressive neurodegenerative disease highly correlated to aging. Whether AD originates by targeting a localized brain area and propagates to the rest of the brain across ... -
New Simplified Algorithm for the Multiple Rotating Frame Approach in Computational Fluid Dynamics
(Journal of Fluids Engineering, 2017-06-02)This paper deals with rotating effects simulation of steady flows in turbomachinery. To take into account the rotating nature of the flow, the frozen rotor approach is one of the widely used approaches. This technique, ... -
High-order mixed weighted compact and non-compact scheme for shock and small length scale interaction
(International Journal of Computer Mathematics, 2013-12-31)It is critical for a numerical scheme to obtain numerical results as accurate as possible with limited computational resources. Turbulent processes are very sensitive to numerical dissipation, which may dissipate the small ... -
A Bochev-Dohrmann-Gunzburger stabilization method for the primitive equations of the ocean
(Applied Mathematics Letters, 2013-12-31)We introduce a low-order stabilized discretization of the primitive equations of the ocean with highly reduced computational complexity. We prove stability through a specific inf-sup condition, and weak convergence to a ... -
A variational finite element model for large-eddy simulations of turbulent flows
(Chinese Annals of Mathematics. Series B, 2013-12-31)The authors introduce a new Large Eddy Simulation model in a channel, based on the projection on finite element spaces as filtering operation in its variational form, for a given triangulation {T h}h>0. The eddy viscosity ... -
Identification of defects originated during the filling of cast pieces through particles modelling
(11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014, 2014-12-31)In casting processes, strong recirculation zones may trap air, gases and strip particles of sand off the mold affecting seriously the quality of the cast pieces. Especially during the filling of molten pieces with large ... -
Discontinuous high-order finite-volume/finite-element method for inviscid compressible flows
(53rd AIAA Aerospace Sciences Meeting (2015), 2015-12-31)The discontinuous, hybrid control-volume/finite-element method merges the desirable conservative properties and intuitive physical formulation of the finite-volume technique, with the capability of local arbitrary high-order ... -
Efficient Rotating Frame Simulation in Turbomachinery
(Proceedings of ASME Turbo Expo 2014: Turbine Technical Conference and Exposition; Dusseldorf, Germany, June 16-20 2014", 2014-12-31)This paper deals with the simulation of steady flows in tur- bomachinery. Two approaches are proposed, the first one is the classical multiple-rotating frame method (MRF) by multi- zone approach where the different zones ... -
BBIPED: BCAM-Baltogar Industrial Platform for Engineering Design
(18th International Conference on Circuits, Systems, Communications and Computers (CSCC 2014); Advances in Engineering Mechancis and Materials, Proc.the International Conference; on Industrial Engineering (INDE 2014)", 2014-12-31)Currently, commercial software for computational fluid dynamics offers a good set of features to deal with traditional designs. Within a competitive market industrial innovation is a key factor that must be faced by ... -
SimTek - an edX-based platform for Mathematical Multi-physics Simulation
(International Conference on MOOCs in Scandinavia, 2015-12-31)[No abstract available] -
Spray Drag Effect of Fluidized Sand for a Supersonic Vehicle
(Journal of Coupled Systems and Multiscale Dynamics, 2014-12-31)This paper deals with fluidized sand simulation in order to estimate the impact of sand particle motion on the BLOODHOUND SuperSonic Car (SSC) drag forces, such phenomenon is known as a spray drag effect. A gas-particle ... -
High order discontinuous finite-volume/finite-element method for CFD applications
(11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014, 2014-12-31)The proposed method naturally merges the desirable conservative properties and intuitive physical formulation of the widely used finite-volume (FV) technique, with the capability of local arbitrary high-order accuracy and ... -
Unstructured, curved elements for the two-dimensional high order discontinuous control-volume/finite-element method
(International Journal for Numerical Methods in Engineering, 2014-12-31)Quadrilateral and triangular elements with curved edges are developed in the framework of spectral, discontinuous, hybrid control-volume/finite-element method for elliptic problems. In order to accommodate hybrid meshes, ... -
Numerical investigation of the aerodynamic performance for a wells-type turbine in a wave energy converter
(MARINE 2015 - Computational Methods in Marine Engineering VI, 2015-12-31)Ocean waves constitute an extensive energy resource, whose extraction has been the subject of intense research activity in the last three decades. Among the different variants of Wave Energy Converters, the principle of ...
RSS 1.0