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Kosari, A. (author), Zandbergen, H.W. (author), Tichelaar, F.D. (author), Visser, P. (author), Terryn, H.A. (author), Mol, J.M.C. (author)Identifying corrosion initiation events in metals and alloys demands techniques that can provide temporal and spatial resolution simultaneously. Transmission electron microscopy (TEM) enables one to obtain microstructural and chemical descriptors of materials at atomic/nanoscopic level and has been used in corrosion studies of many metal...review 2020
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- Wittenberg, H. (author), Korting, P.A.O.G. (author), Zandbergen, B.T.C. (author), Wijchers, T. (author), Elands, P.J.M. (author), de Wilde, J.P. (author), Dijkstra, F. (author) report 1988
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- Wittenberg, H. (author), Korting, P.A.O.G. (author), Zandbergen, B.T.C. (author), Wijchers, T. (author), Elands, P.J.M. (author), de Wilde, J.P. (author), Dijkstra, F. (author) report 1990
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Zandbergen, T. (author)An experimental investigation was carried out in the low speed wind tunnel LST to study aircraft engine noise generation by rotor/stator interaction. Reported is a follow-up experiment including detailed acoustic measurements in the duct downstream of a rotor with cylindrical pins to complement earlier tests whereby rotor wake velocities and...report 1987
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van der Walle, F. (author), Zandbergen, P.J. (author)This report presents a new method to find shapes that attain minimum wave drag under certain constraints. The constraints considered here are given values for the base area and the lift. The configuration is assumed to be embedded in a volume enclosed by two opposing circular Mach cones, one going through the most forward point of the...report 1964
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- Zandbergen, B.T.C. (author) report 1995
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- Mooij, E. (author), Maree, A.G.M. (author), Zandbergen, B.T.C. (author) report 1993
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Zandbergen, P.J. (author), van der Walle, F. (author)A method is given for the calculation of the noise field of a propeller. This method is slightly different from that of Garrick and Watkins. It is believed that the differences in the results indicate the order of the inaccuracy due to the approximations inherent in the two methods. The noise field of two propellers is calculated to show these...report 1962
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- Erdmann, S.F. (author), Zandbergen, P.J. (author) report 1969
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Zandbergen, T. (author), Maarsingh, R.A. (author), Joosen, C.J.J. (author)With the intent to test the qualities of the theoretical models used in two different calculation methods, pressure distributions have been measured on a simple half model wing-in-jet combination. The position of the jets relative to the wing was varied, mainly in a plane perpendicular to the span. Jet velocities of 1, 2 and 3 times the tunnel...report 1977
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- Zandbergen, T. (author), de Wolf, W.B. (author), Schulten, J.B.H.M. (author) report 1983
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- Wittenberg, H. (author), Korting, P.A.O.G. (author), Zandbergen, B.T.C. (author), Wijchers, T. (author), Elands, P.J.M. (author), de Wilde, J.P. (author), Dijkstra, F. (author) report 1989
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Labrujere, Th.E. (author), Zandbergen, P.J. (author)The Coanda effect, being an expedient for the application of blowing boundary layer control^, has been investigated by the NLH to gain an insight into the basic principle and the laws by which it is governed, Within the framework of this investigation a potential theory is developed which, at any rate leads to a qualitative prediction of the...report 1963
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Zandbergen, T. (author), Sarin, S.L. (author), Donnelly, R.P. (author)Results of sound pressure measurements on the fuselage wall of a twin engine propeller driven model are presented. The tests were carried out in the German-Dutch low speed wind tunnel DNW in the Netherlands. The model was equipped with either metallic propeller blades or composite blades. The propeller diameter was 0.762 m. Six microphones were...report 1984
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van der Walle, F. (author), Raat, J. (author), Zandbergen, P.J. (author)In this report a method is presented to determine optimum shapes of bodies of revolution taking into account the shape dependent part of the base drag. The latter is achieved by using the Chapman assumption that the base pressure coefficient, when correlated with conditions at a suitable point near the base, depends only on the free-stream Mach...report 1964
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Labrujere, E. (author), Zandbergen, P.J. (author)Results are presented which are obtained by a new elaborate method developed at NLR for the determination of the characteristics of thin wings in subsonic flow. Attention is paid to the rate of convergence of the numerical solutions, especially with respect to the number of collocation points. Two rectangular wings have been treated in order to...report 1971
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Loeve, W. (author), Zandbergen, P.J. (author)In this paper, a discussion is given of some of the aerodynamic difficulties involved in the design of wings for high-subsonic speeds, and of the theoretical methods available to calculate sub-critical pressure distributions. It appears that until now only one of these methods, being in fact a semi-emperical one, is developed far enough to be of...report 1966
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Baurdour, H.I. (author), Zandbergen, P.J. (author)In this report the drag-coefficient of an optimum body with a conical nose has been determined. The body was designed for a Mach number of the undisturbed stream equal to 3. It is found that the curve for the drag coefficient shows a definite kink at the design Mach number. The conclusion is reached that a more general approach for designing...report 1964
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Zandbergen, T. (author), Maarsingh, R.A. (author)Based on comparison with results from special experiments, an evaluation has been performed of the method of Levinsky, Thommen, Yager and Holland, which is intended to calcxilate the spanwise lift distribution on wings immersed in propulsive jets. Various modifications of the original method have been investigated. It was found that the method,...report 1979
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- Zandbergen, T. (author), Joosen, C.J.J. (author) report 1974