Illustrative examples of optimization techniques for quantitative and qualitative water management: Report on investigation

SAMID: An interactive System for the Analysis and Constrained Minimization of Induced Drag of aircraft configurations

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...

Optimalisatie op basis van lineair programmeren (LP) en dynamisch programmeren (DP): Mogelijkheden en beperkingen

Optimalisatietechnieken in kwantitatief waterbeheer: Ontwerp van beheerstrategieën in PAWN

The design and aerodynamic characteristics of an 18% thick shock-free airfoil (NLR 7501)

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.

Optimalisatietechnieken in kwantitatief en kwalitatief waterbeheer

Airfoil design by the method of singularities via parametric optimization of a geometrically constrained least squares object function

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...

An hierarchic multi-suppliers computer network of a research laboratory with two settlements

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...

Conception de réseau iBGP

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...