- document
- Wang, H. (author), Van Mieghem, P. (author) conference paper 2008
- document
-
Fenicia, F. (author)This thesis describes an approach to model development based on the concept of iterative model improvement, which is a process where by trial and error different hypotheses of catchment behaviour are progressively tested, and the understanding of the system proceeds through a combined process of modelling and experimenting. We show a number of...doctoral thesis 2008
- document
- Marinescu, O. (author), Bociort, F. (author) journal article 2008
- document
- Marinescu, O. (author), Bociort, F. (author) journal article 2008
- document
-
Abrasive Waterjet (AWJ) Machining is a recent non-traditional machining process. This technology is widely used in industry for cutting difficult-to-machine-materials, milling slots, polishing hard materials etc. AWJ machining has many advantages, e.g. it can cut net-shape parts, no heat is generated during the cutting process, it is...doctoral thesis 2008
- document
-
Model-based lifecycle optimization of well locations and production settings in petroleum reservoirsZandvliet, M.J. (author)The coming years there is a need to increase production from petroleum reservoirs, and there is an enormous potential to do so by increasing the recovery factor. This is possible by making better use of recent technological developments, such as horizontal wells, downhole valves and sensors. However, actually making better use of these improved...doctoral thesis 2008
- document
- Marinescu, O. (author), Bociort, F. (author) journal article 2008
- document
- Karimi Nejadasl, F. (author), Gorte, B.G.H. (author), Hoogendoorn, S.P. (author), Snellen, M. (author) conference paper 2008
- document
-
van der Helm, A.W.C. (author)Drinking water treatment plants automation becomes more sophisticated, more on-line monitoring systems become available and integration of modeling environments with control systems becomes easier. This gives possibilities for model-based optimization. In operation of drinking water treatment plants, the processes are usually optimized...doctoral thesis 2007
- document
-
Van Turnhout, M. (author), Bociort, F. (author)Local optimization algorithms, when they are optimized only for speed, have in certain situations an unpredictable behavior: starting points very close to each other lead after optimization to different minima. In these cases, the sets of points, which, when chosen as starting points for local optimization, lead to the same minimum (the so...conference paper 2007
- document
-
Bociort, F. (author), Van Turnhout, M. (author), Marinescu, O. (author)Saddle-point construction (SPC) is a new method to insert lenses into an existing design. With SPC, by inserting and extracting lenses new system shapes can be obtained very rapidly, and we believe that, if added to the optical designer’s arsenal, this new tool can significantly increase design productivity in certain situations. Despite the...conference paper 2007
- document
- Kumar, P. (author), Bauer, P. (author) conference paper 2007
- document
-
Hol, C.W.J. (author)In many application areas of mechanical servo-systems the high demands on the performance often imply a tightly tuned feedback controller, that takes dynamical interaction into account. Model-based H-optimal controller synthesis is a well-suited technique for this purpose. However, the state-of-the-art synthesis approach yields controllers with...doctoral thesis 2006
- document
-
Daumas, L. (author), Dinh, Q.V. (author), Kleinveld, S. (author), Rogé, G. (author)Preliminary results on shape optimization of a wing-body configuration aiming at reducing sonic boom overpressure will be discussed. The optimization process uses a CAD modeler and an Euler CFD code with adjoint. Thickness, scale, twist and camber at section level were used to obtain gains in ground pressure signature.conference paper 2006
- document
-
Papadimitriou, D.I. (author), Giannakoglou, K.C. (author)This paper summarizes progress, recently made in the Lab. of Thermal Turbomachines of NTUA, on the formulation and use of the continuous adjoint methods in aerodynamic shape optimization problems. The basic features of state of the art adjoint methods and tools which are capable of handling arbitrary objective functions, cast in the form of...conference paper 2006
- document
- Pironneau, O. (author) conference paper 2006
- document
- Homsi, P. (author) conference paper 2006
- document
-
Mirzaei, M. (author), Roshanian, J. (author), Nasrin Hosseini, S. (author)A gradient based method is presented for optimization of an airfoil configuration. The flow is governed by two dimensional, compressible Euler equations. A finite volume code based on unstructured grid is developed to solve the equations. The procedure is carried out for optimizing an airfoil with initial configuration of NACA 0012. The...conference paper 2006
- document
-
Bletzinger, K.U. (author), Gallinger, T. (author), Kupzok, A. (author), Wüchner, R. (author)In this paper the possibility of the optimization of coupled problems in partitioned approaches is discussed. As a special focus, surface coupled problems of fluid-structure interaction are considered. Well established methods of optimization are analyzed for usage in the context of coupled problems and in particular for a solution through...conference paper 2006
- document
-
Wild, J. (author), Brezillon, J. (author), Mertins, R. (author), Quagliarella, D. (author), Germain, E. (author), Amoignon, O. (author), Moens, F. (author)The design activity within the EUROLIFT II project is targeted towards an improvement of the take-off performance of a generic transport aircraft configuration by a re-design of the trailing edge flap. The involved partners applied different optimization strategies as well as different types of flow solvers in order to cover a wide range of...conference paper 2006