Searched for: subject%3A%22structure%255C+preserving%22
(1 - 9 of 9)
document
Zhang, Yi (author), Palha, A. (author), Gerritsma, M.I. (author), Yao, Qinghe (author)
In this work, we present a mass, energy, enstrophy and vorticity conserving (MEEVC) mixed finite element discretization for two-dimensional incompressible Navier-Stokes equations as an alternative to the original MEEVC scheme proposed in A. Palha and M. Gerritsma (2017) [5]. The present method can incorporate general boundary conditions....
journal article 2024
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Klein, Robin (author)
In this master thesis several novel DEIM formulations are proposed that enable the construction of non-linearly stable hyper-reduced order models (hROMs) of the incompressible Navier-Stokes equations. The hROMs have the same mass, momentum and energy conservation properties as the previously proposed ROM, but they do not suffer of prohibitively...
master thesis 2022
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Zhang, Y. (author)
Structure-conserving numerical methods that aim at preserving certain structures of the PDEs at the discrete level have been an interesting research topic for many decades. The mimetic spectral element method, a recently developed arbitrary order structure-preserving method on orthogonal or curvilinear meshes, has also been drawing increasingly...
doctoral thesis 2022
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López-Pérez, Lidia (author), López-Martínez, Marco Antonio (author), Djanashvili, K. (author), Góra-Marek, Kinga (author), Tarach, Karolina A. (author), Borges, María Emma (author), Melián-Cabrera, Ignacio (author)
Mesoporous materials are of vital importance for use in separation, adsorption, and catalysis. The first step in their preparation consists of synthesizing an organic-inorganic hybrid in which a structuring directing agent (SDA, normally a surfactant) is used to provide the desired porosity. The most common method to eliminate the SDA, and...
journal article 2020
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Wei, Mingqiang (author), Tian, Yang (author), Pang, Wai-Man (author), Wang, C.C. (author), Pang, Ming-Yong (author), Wang, Jun (author), Qin, Jin (author), Heng, Pheng-Ann (author)
Bas-relief is characterized by its unique presentation of intrinsic shape properties and/or detailed appearance using materials raised up in different degrees above a background. However, many bas-relief modeling methods could not manipulate scene details well. We propose a simple and effective solution for two kinds of bas-relief modeling (i...
journal article 2019
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Polman, J.D. (author)
master thesis 2017
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Janssen, S.R. (author)
Double degree. Supervision of the thesis also at: Faculty Applied Mathematics, Department Numerical Analysis, Programme M.Sc. Applied Mathematics. Structure-preserving discretization techniques preserve fundamental structure of operators and operands found in partial differential equations. Classical discretization techniques sometimes neglect...
master thesis 2016
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Ravichandran, T.K. (author)
The field of Hyper-reduction for Nonlinear Finite Element Method attempts to address the large durations due to repeated evaluation and assembly of the internal force and Jacobian. Stability, accuracy and speed are three aspects of thesemethods that has been dealt with in this thesis. There are two methods that are popular within the...
master thesis 2016
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Van Oers, A.M. (author)
A DGFEM discretization has been developed for the Hamiltonian dynamics of stratified incompressible linear fluid flow. The developed discretization can handle the numerical challenges posed by wave attractors: the three dimensionality of the domain, the focusing of wave energy and the incompressibility of the flow. The discretization is...
master thesis 2015
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