Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Joris C. G. Verschaeve"'
Publikováno v:
Journal of Fluid Mechanics. 836:740-772
In the present work, a stability analysis of the bottom boundary layer under solitary waves based on energy bounds and non-modal theory is performed. The instability mechanism of this flow consists of a competition between streamwise streaks and two-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0c8c65b5396a344d78c22d37f2f3b15
https://doi.org/10.1017/jfm.2017.825
https://doi.org/10.1017/jfm.2017.825
Autor:
Joris C. G. Verschaeve, Geir Pedersen
Publikováno v:
Journal of Fluid Mechanics. 761:62-104
In the present treatise, the stability of the boundary layer under solitary waves is analysed by means of the parabolized stability equation. We investigate both surface solitary waves and internal solitary waves. The main result is that the stabilit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d71a2a53f2f6426039c274f3289353c
https://doi.org/10.1017/jfm.2014.617
https://doi.org/10.1017/jfm.2014.617
Publikováno v:
Coastal Engineering. 91:1-17
The paper presents a benchmark of four freely available solvers for Navier–Stokes equations: Gerris, OpenFOAM, Thetis and Truchas. These models are selected because they have been reported to deal successfully with oceanographic and coastal enginee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a68afa426f7b7d730f9bdc7418cb14d8
https://doi.org/10.1016/j.coastaleng.2014.04.012
https://doi.org/10.1016/j.coastaleng.2014.04.012
Publikováno v:
Journal of Fluid Mechanics. 753:554-559
We address two shortcomings in the article by Liu, Park & Cowen (J. Fluid Mech., vol. 574, 2007, pp. 449–463), which gave a theoretical and experimental treatise of the bottom boundary-layer under a solitary wave.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3975e2ab366ed28ea8b597a02de2d961
https://doi.org/10.1017/jfm.2014.52
https://doi.org/10.1017/jfm.2014.52
Efficient preconditioners for saddle point systems with trace constraints coupling 2D and 1D domains
We study preconditioners for a model problem describing the coupling of two elliptic subproblems posed over domains with different topological dimension by a parameter dependent constraint. A pair of parameter robust and efficient preconditioners is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37044a2b03c78d484aa249d8e9fee7ef
http://arxiv.org/abs/1605.07198
http://arxiv.org/abs/1605.07198
Autor:
Joris C. G. Verschaeve
The weighted extended B-spline method (Hollig, 2003) is applied to bending and buckling problems of plates with different shapes and stiffener arrangements. The discrete equations are obtained from the energy contributions of the different components
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9167a4bfe771cd4db98e8dbc7741aa13
http://arxiv.org/abs/1512.04276
http://arxiv.org/abs/1512.04276
Publikováno v:
Mathematics and Computers in Simulation. 81:2632-2645
In the present discussion a no-slip boundary condition for walls with a tangential movement is derived. The resulting closure is local, conserves mass exactly and is second order accurate with respect to the grid spacing. In addition it avoids the nu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::694bc1805d186325db2da82d85d9e449
https://doi.org/10.1016/j.matcom.2011.05.004
https://doi.org/10.1016/j.matcom.2011.05.004
Autor:
Joris C. G. Verschaeve
Publikováno v:
Computers & Fluids. 46:486-492
We derive an alternative formulation for the interface reconstruction problem within the framework of the volume of fluid method. This leads to an interpolation problem which can be solved systematically by means of B-spline interpolation allowing a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53acb55b11d9937613fa31ba5f2b01fe
https://doi.org/10.1016/j.compfluid.2010.11.028
https://doi.org/10.1016/j.compfluid.2010.11.028
Autor:
Joris C. G. Verschaeve
Publikováno v:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 369:2184-2192
By means of the continuity equation of the incompressible Navier–Stokes equations, additional physical arguments for the derivation of a formulation of the no-slip boundary condition for the lattice Boltzmann method for straight walls at rest are o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a1b6bf6195aabc14e68f5693d686184
https://doi.org/10.1098/rsta.2011.0045
https://doi.org/10.1098/rsta.2011.0045
Publikováno v:
Journal of Computational Physics. 229:6781-6803
We present a generalization of the no-slip boundary condition by Latt et al. [J. Latt, B. Chopard, O. Malaspinas, M. Deville, A. Michler, Straight velocity boundaries in the lattice Boltzmann method, Physical Review E 77 (5) (2008) 056703] from strai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed40f53456154f8f4ec47a7d85935874
https://doi.org/10.1016/j.jcp.2010.05.022
https://doi.org/10.1016/j.jcp.2010.05.022