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van den Bos, L.M.M. (author), Koren, B (author), Dwight, R.P. (author)
The problem of non-intrusive uncertainty quantification is studied, with a focus on two computational fluid dynamics cases. A collocation method using quadrature or cubature rules is applied, where the simulations are selected deterministically. A one-dimensional quadrature rule is proposed which is nested, symmetric, and has positive weights....
conference paper 2016
document
Barenghi, A (author), Hocquet, C (author), Bol, D (author), Standaert, FX (author), Regazzoni, F. (author), Koren, I (author)
journal article 2014
document
Koren, G.B. (author)
The HPLWR (High Performance Light Water Reactor) is the European version of the SCWR (Supercritical Water Reactor) and is one of the Generation IV concepts that have enhanced safety, improved efficiency and less nuclear waste compared to current nuclear reactors. A possible way to enhance the safety is by using natural convection as the driving...
bachelor thesis 2010
document
Koren, G.W. (author)
An analysis and exploration of opportunities for the production of high value bamboo products by craftsmen for the Western market, using a new bamboo material.
master thesis 2010
document
Hassen, Y. (author), Koren, B. (author)
An accurate method, using a novel immersed-boundary approach, is presented for numerically solving advection problems. As is standard in immersed-boundary methods, moving bodies are embedded in a fixed, ‘Cartesian,’ finite-volume grid. The essence of the present method is that specific fluxes in the vicinity of a moving body are computed in such...
conference paper 2009
document
Straathof, M.H. (author), Van Tooren, M.J.L. (author), Voskuijl, M. (author), Koren, B. (author)
The Multi-Disciplinary Design Optimisation (MDO) process can be supported by partial automation of analysis and optimisation steps. Design and Engineering Engines (DEE) are useful concepts to structure this type of automation. Within the DEE, a product can be parameterically defined using Knowledge Based Engineering (KBE). This parameteric...
conference paper 2008
document
Hassen, Y.J. (author), Koren, B. (author)
conference paper 2008
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Wackers, J. (author), Koren, J. (author)
journal article 2007
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Naber, J. (author), Koren, B. (author)
In this work a numerical method for the solution of the two-dimensional Euler equations describing unsteady compressible two-fluid flow is presented. The method is based on the combination of a Runge-Kutta discontinuous Galerkin discretization of the Euler equations and a level-set method for the treatment of the two-fluid interface. The...
conference paper 2006
document
Wackers, J. (author), Koren, B. (author)
A surface capturing method is developed for steady water-air flow with gravity. Second-order accuracy is obtained with flux limiting and turbulence is modeled with Menter's model. The model is solved efficiently with a combination of multigrid and defect correction. Results for two test cases confirm the efficiency and accuracy of the method.
conference paper 2006
document
Cnossen, J.M. (author), Bijl, H. (author), Gerritsma, M.I. (author), Koren, B. (author)
For goal-oriented model adaptation a model-error estimator is required to drive the adaptation process. In recent years publications have appeared on the dual-weighted residual (DWR) method in the application of model-error estimation in output functionals. In this paper we study the application of the DWR method for convection-diffusion...
conference paper 2006
document
Cnossen, J.M. (author), Bijl, H. (author), Gerritsma, M.I. (author), Koren, B. (author)
For goal-oriented model adaptation a model-error estimator is required to drive the adaptation process. In recent years publications have appeared on the dual-weighted residual (DWR) method in the application of model-error estimation in output functionals. In this paper we study the application of the DWR method for convection-diffusion...
conference paper 2006
document
Wackers, J. (author), Koren, B. (author)
A surface capturing method is developed for steady water-air flow with gravity. Second-order accuracy is obtained with flux limiting and turbulence is modeled with Menter's model. The model is solved efficiently with a combination of multigrid and defect correction. Results for two test cases confirm the efficiency and accuracy of the method.
conference paper 2006
document
Naber, J. (author), Koren, B. (author)
In this work a numerical method for the solution of the two-dimensional Euler equations describing unsteady compressible two-fluid flow is presented. The method is based on the combination of a Runge-Kutta discontinuous Galerkin discretization of the Euler equations and a level-set method for the treatment of the two-fluid interface. The...
conference paper 2006
document
Carpentieri, G. (author), Van Tooren, M.J.L. (author), Koren, B. (author)
An optimization framework for aerodynamic design on unstructured meshes has been implemented. It includes a finite volume solver based upon a median-dual discretization, its discrete adjoint, and shape parameterization and mesh moving/deforming algorithms. The framework elements are coupled and linked to a Sequential Quadratic Programming (SQP)...
conference paper 2006
document
Carpentieri, G. (author), Van Tooren, M.J.L. (author), Koren, B. (author)
An optimization framework for aerodynamic design on unstructured meshes has been implemented. It includes a finite volume solver based upon a median-dual discretization, its discrete adjoint, and shape parameterization and mesh moving/deforming algorithms. The framework elements are coupled and linked to a Sequential Quadratic Programming (SQP)...
conference paper 2006
document
Koren, Jan Vilhelm (author)
report 2005
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Koren, B. (author)
public lecture 2003
document
Koren, G.F. (author)
master thesis 2003
document
Koren, A.E. (author), Van Leeuwen, J.C.M. (author), Spruijt, R.A. (author), Weststrate, J. (author)
report 1998
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