Exploració per tema "Level set"
Ara es mostren els items 1-11 de 11
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A level set-based actuator disc model for turbine realignment in wind farm simulation: meshing, convergence and applications
(2022-11-24)
Article
Accés obertWe present a novel meshing and simulation approach for wind farms, featuring realignment and mesh adaptation. The turbines are modeled with actuator discs, which are discretized by means of an adaptation process to represent ... -
Adaptive breakwaters with inflatable elements for coastal protection. Preliminary numerical estimation of their performance
(2022-05)
Article
Accés obertExcessive erosion of sand beaches defines a serious problem worldwide and is particularly pronounced in the Mediterranean region. One of the typical mea- sures for alleviating this erosion consists in building rigid ... -
An embedded approach for the solution of the full potential equation with finite elements
(2022-01)
Article
Accés obertRecent developments in numerical simulations in the aerodynamics field are focused on reducing the computational cost of the solvers, targeting their use at the initial design steps. Under the right assumptions, potential ... -
An unfitted method with elastic bed boundary conditions for the analysis of heterogeneous arterial sections
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-04-06)
Article
Accés obertThis manuscript presents a novel formulation for a linear elastic model of a heterogeneous arterial section undergoing uniform pressure in a quasi-static regime. The novelties are twofold. First, an elastic bed support on ... -
Enhancing level set-based topology optimization with anisotropic graded meshes
(Elsevier, 2023-06)
Article
Accés restringit per política de l'editorialWe propose a new algorithm for the design of topologically optimized lightweight structures, under a minimum compliance requirement. The new process enhances a standard level set formulation in terms of computational ... -
Numerical approximation of internal discontinuity interface problems
(2013-10-23)
Article
Accés obertThis work focuses on the finite element discretization of boundary value problems whose solution features either a discontinuity or a discontinuous conormal derivative across an in- terface inside the computational domain. ... -
Numerical simulation of orbitally shaken viscous fluids with free surface
(2013-01-30)
Article
Accés obertOrbitally shaken bioreactors are an emerging alternative to stirred-tank bioreactors for large-scale mam- malian cell culture, but their fluid dynamics is still not well defined. Among the theoretical and practical issues ... -
On the solution of the problem of a drop falling against a plane by using a level set-moving mesh-immersed boundary method
(WIT Press, 2018)
Article
Accés obertA coupled Conservative Level Set – Moving Mesh – Immersed Boundary method is formulated and validated against the three-dimensional gravity-driven falling drop problem. First, by employing Conservative Level-Set (CLS) ... -
Recent ship hydrodynamics developments in the parallel two-fluid flow solver Alya
(Elsevier, 2013-07-10)
Article
Accés obertCFD modeling of turbulent free surface flows has become an important tool in the design of ship hulls. A two-fluid flow solver that can predict the flow pattern, free surface shape and the forces on the ship hull is ... -
Study of dehomogenization methods in topology optimization
(Universitat Politècnica de Catalunya, 2023-07-17)
Treball Final de Grau
Accés obertThe field of topology optimization involves the use of numerical optimization techniques to design efficient engineering structures. The primary objective of this thesis is to examine and implement a de-homogenization ... -
The Fixed-Mesh ALE approach for the numerical approximation of flows in moving domains
(2008-07-30)
Article
Accés obertIn this paper we propose a method to approximate flow problems in moving domains using always a given grid for the spatial discretization, and therefore the formulation to be presented falls within the category of ...