Searched for: subject:"numerical%5C+analysis"
(1 - 20 of 33)

Pages

document
Struzziero, G. (author), Teuwen, J.J.E. (author)
The paper deals with the influence of the convection coefficient and laminate thickness on multi-objective optimisation of the vacuum assisted resin transfer moulding cure stage for the manufacturing of wind turbine components. An epoxy resin system widely used in the wind turbine industry has been chemically characterised and the...
journal article 2019
document
van Hooijdonk, I.G.S. (author), Clercx, Herman J.H. (author), Ansorge, Cedrick (author), Moene, Arnold F. (author), van de Wiel, B.J.H. (author)
We perform direct numerical simulation of the Couette flow as a model for the stable boundary layer. The flow evolution is investigated for combinations of the (bulk) Reynolds number and the imposed surface buoyancy flux. First, we establish what the similarities and differences are between applying a fixed buoyancy difference (Dirichlet) and...
journal article 2018
document
Struzziero, G. (author), Skordos, A. A. (author)
This paper addresses the multi-objective optimisation of the cure stage of composites manufacture. The optimisation aims to minimise the cure process duration and maximum temperature overshoot within the curing part by selecting an appropriate thermal profile. The methodology developed combines a finite element solution of the heat transfer...
journal article 2017
document
Syed, H.A.M.S. (author), Primeau, F.W. (author), Deleersnijder, E.L.C. (author), Heemink, A.W. (author)
Lagrangian forward and backward models are introduced into a coarse-grid ocean global circulation model to trace the ventilation routes of the deep North Pacific Ocean. The random walk aspect in the Lagrangian model is dictated by a rotated isopycnal diffusivity tensor in the circulation model, and the effect of diffusion is explicitly...
journal article 2017
document
Scalici, T. (author), Pitarresi, G. (author), Catalanotti, G. (author), van der Meer, F.P. (author), Valenza, A (author)
Several problems arise when measuring the mode II interlaminar fracture toughness using a Transverse Crack Tension specimen; in particular, the fracture toughness depends on the geometry of the specimen and cannot be considered a material parameter. A preliminary experimental campaign was conducted on TCTs of different sizes but no fracture...
journal article 2016
document
Jiang, X. (author), Song, Jie (author), Qiang, X. (author), Kolstein, M.H. (author), Bijlaard, F.S.K. (author)
Influence of moisture absorption/desorption on the flexural properties of Glass-fibre-reinforced polymer (GFRP) laminates was experimentally investigated under hot/wet aging environments. To characterize mechanical degradation, three-point bending tests were performed following the ASTM test standard (ASTM D790-10A). The flexural properties...
journal article 2016
document
Sadeghi Tehrani, F. (author), Thi Viet Phuong, N. (author), Brinkgreve, R.B.J. (author), van Tol, A.F. (author)
In this study, installation of jacked piles in sand is simulated using Press-Replace Method (PRM) and Material Point Method (MPM) and the results are compared together. This comparison is important because a realistic and yet efficient simulation of installation of jacked piles is an appealing step towards the design and analysis of this type of...
journal article 2016
document
Katsigiannis, G. (author), Schweiger, H.F. (author), Ferreira, P. (author), Fuentes, R. (author)
This paper focuses on the derivation of design prop loads for supported excavations in stiff clay with increasing excavation depth and number of prop levels. For multi-propped walls there are a number of empirical graphs to obtain the design prop forces. CIRIA C517 (Twine & Roscoe, 1999) enhancing Terzaghi & Peck's work (Terzaghi & Peck (1967)...
conference paper 2015
document
Schulz, E. (author), Schuttelaars, H.M. (author), Grawe, U. (author), Burchard, H. (author)
The dependency of the estuarine circulation on the depth-to-width ratio of a periodically, weakly stratified tidal estuary is systematically investigated here for the first time. Currents, salinity, and other properties are simulated by means of the General Estuarine Transport Model (GETM) in cross-sectional slice mode, applying a symmetric...
journal article 2015
document
Van 't Wout, E. (author)
The aim of this thesis is to design a computational method that can be used in modern stealth technology. In particular, the computational method should be capable to simulate scattering of ultra-wideband radar signals for military aircraft constructed with ferromagnetic radar absorbent materials. A full-wave boundary element method has been...
doctoral thesis 2013
document
Brändle de Motta, J.C. (author), Breugem, W.P. (author), Gazanion, B. (author), Estivalezes, J.L. (author), Vincent, S. (author), Climent, E. (author)
A general model is presented for short-range hydrodynamic interactions and head-on particle-particle/wall collisions. The model has been embedded in two distinct numerical methods for fully resolved simulation of finite-size particles in a viscous fluid. It accounts for the material properties of the particles and lubrication effects prior to...
journal article 2013
document
De Belie, N. (author), Van der Zwaag, S. (author), Gruyaert, E. (author), Van Tittelboom, K. (author), Debbaut, B. (author)
Symposium organised by Ghent University, Department of Structural Engineering and Delft University of Technology, Aerospace Structures & Materials. Materials play an extremely important role in our lives. These materials may be of a very different nature ranging from metals over concrete to polymers and composite materials. They all have in...
book 2013
document
Ooms, G. (author), Pourquie, M.J.B.M. (author), Beerens, J.C. (author)
A numerical study has been made of horizontal core-annular flow: the flow of a high-viscosity liquid core surrounded by a low-viscosity liquid annular layer through a horizontal pipe. Special attention is paid to the question how the buoyancy force on the core, caused by a density difference between the core and the annular layer, is...
journal article 2013
document
Hoang, D.A. (author), Van Steijn, V. (author), Portela, L.M. (author), Kreutzer, M.T. (author), Kleijn, C.R. (author)
Modeling of low-Capillary number segmented flows in microchannels is important for the design of microfluidic devices. We present numerical validations of microfluidic flow simulations using the volume-of-fluid (VOF) method as implemented in OpenFOAM. Two benchmark cases were investigated to ensure the reliability of OpenFOAM in modeling complex...
conference paper 2012
document
Kenjeres, S. (author)
Motivated by the concept of interdependency of turbulent flow and electromagnetic fields inside the spiraling galaxies, we explored the possibilities of generating a localized Lorentz force that will produce a three-dimensional swirling flow in weakly conductive fluids. Multiple vortical flow patterns were generated by combining arrays of...
journal article 2011
document
Sheng, Z. (author)
The present development of modern integrated circuits (IC’s) is characterized by a number of critical factors that make their design and verification considerably more difficult than before. This dissertation addresses the important questions of modeling all electromagnetic behavior of features on the chip, efficient methods to solve large...
doctoral thesis 2010
document
Markovinovic, R. (author)
This thesis is concerned with low-order modelling of heterogeneous reservoir systems for the purpose of efficient simulation and optimization of flooding processes with multiple injection and production (smart) wells. Typically, one is initially equipped with a physics-based ('white-box') model consisting of O(103-106) equations and parameters...
doctoral thesis 2009
document
Leentvaar, C.C.W. (author)
Multi-asset options are based on more than one underlying asset, in contrast to standard vanilla options. A very significant problem within the pricing techniques for multi-asset options is the curse of dimensionality. This curse of dimensionality is the exponential growth of the complexity of the problem when the dimensionality increases,...
doctoral thesis 2008
document
Wenneker, I. (author), Groeneweg, J. (author)
report 2007
document
Vledder, G.P. van (author), Zijlema, M. (author), Rogers, W.E. (author), Groeneweg, J. (author)
report 2007
Searched for: subject:"numerical%5C+analysis"
(1 - 20 of 33)

Pages