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Vermolen, F.J. (author), Vuik, C. (author), van der Zwaag, S. (author)A general model for the dissolution of stoichiometric particles, taking into account the influences of cross-diffusion, in multi-component alloys is proposed and analyzed using a diagonalisation argument. We give a self-similar solution for the resulting Stefanproblem and state when the solutions are mass-conserving. We also give criteria for...report 2001
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- Hart, K.P. (author), Dow, A. (author) journal article 2001
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Vermolen, F.J. (author), Vuik, C. (author), Van der Zwaag, S. (author)A general model for the dissolution of stoichiometric particles in multi-component alloys is proposed and analysed. We introduce the concept of mass-conserving solutions and give a self-similar solution for the resulting Stefan-problem. Furthermore, we show that particle dissolution in multi-component alloys can under certain circumstances be...report 2001
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- De Wolf, P.P. (author) doctoral thesis 1999
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De Groot, J.K. (author)In deze studie wordt de weerstand tegen strorning in de Gorai rivier onderzocht. Als basis voor deze studie zijn veldmetingen gebruikt die gedaan zijn door een joint venture van Baggermaatschappijen onder leiding van Koninklijke Boskalis Westminister. Deze studie is gedaan in opdracht van Koninklijke Boskalis Westminister. De ruwheid is een...master thesis 1999
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- Wang, W.M. (author), Sluys, L.J. (author), De Borst, R. (author) journal article 1997
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- Petit, H.A.H. (author), Bosch, P. van den (author) report 1997
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Sijtsma, P. (author)A theory is presented to calculate acoustic modes in a circular flow duct lined with porous material. The porous material is divided into annular segments by a rigid structure, which prevents axial sound propagation from one segment into the other. Single modes cannot exist in such a configuration, but it is shown that approximate solutions of...report 1996
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- Petit, H.A.H. (author), Bosch, P. van den (author), Gent, M.R.A. van (author) report 1994
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Van Swol, F.J.P. (author)As a result of recent floods caused by mountain rivers, more insight in the morphological processes concerning sedimentation problems and the bottom roughness to predict the expected water levels, is necessary to preclude future catastrophes. The aim of the study is to obtain more insight in the prediction of bottom roughness for situations...master thesis 1993
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- Sluys, L.J. (author), De Borst, R. (author), Muhlhaus, H.B. (author) journal article 1993
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Noback, R. (author)The Deterministic Power-Spectral-Density method can be derived from the Design Envelope Analysis of the continuous P.S.D.-method. It provides a method to determine a deterministic function that gives a maximum response equal to the P.S.D.-design load for linear systems. The P.S.D.-design load is undefined for nonlinear systems. In this report a ...report 1992
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Noback, N. (author)The Deterministic Power-Spectral-Density-method has been derived directly from the continuous P.S.D.-method. It can be regarded as a "translation" from the frequency domain to the space or time domain. The critical gust profile, giving maximum response, is obtained directly. The D.P.S.D.-method gives the same results as the continuous P.S.D.-...report 1992
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- Sluys, L.J. (author), De Borst, R. (author) journal article 1992
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- Van der Beek, C.G.A. (author) doctoral thesis 1989
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- Khalil, M. (author) doctoral thesis 1989
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Labrujère, T.E. (author)A method is described, which is the result of further work on a measured boundary condition method developed at NLR, aiming at on-line application. The method requires a minimum of measured tunnel-wall pressures and applies a fast algorithm for the calculation of the wall interference. Some numerical test results are discussed.report 1989
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Schippers, H. (author)A description is given of TULIPS - a method for Transonic Unsteady Lifting Inviscid Potential-flow Simulation. The Mathematical formulation and the numerical approach are presented for flow about oscillating airfoils. TULIPS is based on the numerical integration of the unsteady full-potential equation in generalized coordinates. The equation is...report 1988
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van Beek, C.M. (author)The application of a boundary integral or "panel" method to duct flows is described. The method is capable of computing the three dimensional, steady state, subsonic, linearized (Prandtl-Glauert) potential flow about general configurations. The method is characterized by the application of a Dirichlet boundary condition and of "compressible"...report 1987
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Noback, R. (author)This report gives an outline of the method to generate equal probility design load conditions. The various steps are described.report 1985