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Buob, M.O. (author), Uhlig, S. (author), Meulle, M. (author)
BGP is used today by all Autonomous Systems (AS) in the Internet. Inside each AS, iBGP sessions distribute the external routes among the routers. In large ASs, relying on a fullmesh of iBGP sessions between routers is not scalable, so route-reflection is commonly used. The scalability of route-reflection compared to an iBGP full-mesh comes at...
conference paper
document
Loeve, W. (author)
For the aerospace laboratory NLR in the Netherlands the considerations are discussed that formed the basis of along-term plan to realize an optimal computer network. In the optimization process up to now the laboratory switched from a situation in which in each of both settlements one central close shop computer centre was available to a...
report 1975
document
Labrujere, T.E. (author)
The present report describes a method for the design of airfoils in incompressible flow which, subject to geometrical constraints generate approximately a given distribution of the pressure coefficient along the projection of the airfoil chord on an axis parallel to the onset flow. The flow is simulated by means of a distribution of...
report 1976
document
Verhaeghe, R.J. (author)
report 1978
document
van Egmond, J.A. (author), Rozendal, D. (author)
The design and experimental verification of a thick (18 %), shock free airfoil is described. The design was performed, using the NLR hodograph theory for transonic airfoil design. The airfoil was experimentally investigated in the NLR Pilot tunnel.
report 1978
document
Samson, J. (author), Dijkman, J.P.M. (author)
report 1981
document
Abraham, G. (author), Beek, E. van (author)
report 1982
document
van den Dam, R.F. (author)
An interactive computer program system has been developed which provides induced-drag analysis, optimization and configuration-design capabilities. The program system employs subsonic far-field (Trefftzplane) analysis, and novel mathematical formulations of the constrained optimization problems which are based on calculus of variations. The...
report 1982
document
Verhaeghe, R.J. (author), Tholen, N. (author)
report 1983
document
Labruijere, T.E. (author)
A program system has been developed as a tool for interactive analysis and design of multi-element airfoils in incompressible viscous flow. A global description of the system is given. It involves the application of three computational methods, one for the analysis of viscous flow and one for the analysis of inviscid flow around multi-element...
report 1983
document
Slooff, J.W. (author)
An overview is provided of computational methods that can be used in solving the design problem of aerodynamics; i.e. the problem of finding the detailed shape of (parts of) configurations of which the gross geometric characteristics have already been determined in a preliminary, overall design process, and that, subject to certain constraints,...
report 1984
document
Ottens, H.H. (author)
A survey of computational methods to improve dynamic analytical models described in the literature is made. Both the matrix methods and the optimal correction method of the dynamic model using the measured modes are discussed.
report 1984
document
van den Dam, R.F. (author)
The use of numerical simulation and optimization techniques is rapidly expanding in all fields of engineering design. The place and the potential of these techniques in the design process, as well as their use by the designer, are discussed. The principles underlying these techniques are outlined and an overall view is given of the various...
report 1985
document
Daniels, H.A.M. (author)
In this paper the CAD system DESTIP is described. DESTIP is developed at the NLR for designing compression panels in wing box structures. Application of the system yields optimal panels in the sense that they meet all the requirements imposed by the designer and have minimum weight per unit width. Weight reductions ranging from 0 to 10% have...
report 1985
document
van den Dam, R.F. (author)
The central issue discussed in this paper is how a designer may profit from the use of mathematical simulation and optimization techniques. These techniques can be useful tools to support the designer in solving his design problem. The place and the potential of these techniques in the design process, as well as their use by the designer, are...
report 1985
document
De Haan, W. (author)
The computation of the optimum rubble-mound breakwater crosssection is executed on a micro-computer. The RUMBA computer package consists of two main parts: the optimization process is executed by a Turbo Pascal programme, the second part consists of editing functions written in AutoLISP. AutoLISP is the programming language within AutoCAD. The...
report 1989
document
Bleeker, F.J. (author), Bons, C.A. (author)
report 1993
document
ten Dam, A.A. (author)
A system of linear homogeneous inequalities determines a convex polyhedral cone of feasible solutions. It is investigated under which conditions polyhedral cones can be represented also by a system that contains equalities as well as inequalities. Different representations of the same convex polyhedral cone are related by elementary...
report 1993
document
Babuska, R. (author), Sousa, J. (author), Verbruggen, H.B. (author)
conference paper 1995
document
Heerschap, M.E. (author)
report 1995
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