Sökning: "curvilinear coordinates"
Visar resultat 1 - 5 av 6 avhandlingar innehållade orden curvilinear coordinates.
1. Handling of curvilinear coordinates in a PDE solver framework
Sammanfattning : By the use of object-oriented analysis and design combined with variability modeling a highly flexible software model for the metrics handling functionality of a PDE solver framework was obtained. This new model was evaluated in terms of usability, particularly with respect to efficiency and flexibility. LÄS MER
2. A hybrid high order method for simulation of turbulent flow in complex geometries
Sammanfattning : .... LÄS MER
3. Design of High Performance Computing Software for Genericity and Variability
Sammanfattning : Computer simulations have emerged as a cost efficient complement to laboratory experiments, as computers have become increasingly powerful. The aim of the present work is to explore the ideas of some state of the art software development practices, and ways in which these can be useful for developing high performance research codes. LÄS MER
4. Stäckel multipliers in Euclidean space
Sammanfattning : In order to apply the method of separation of variables to the natural Hamilton-Jacobi equation in Euclidean space, one has to find new curvilinear coordinates in which the transformed equation admits a complete separated solution . For a potential V(q) given in Cartesian coordinates, the main difficulty is to decide if such a transformation x(q) exists and to effectively determine it explicitly. LÄS MER
5. A high order method for simulation of fluid flow in complex geometries
Sammanfattning : A numerical high order difference method is developed for solution of the incompressible Navier-Stokes equations. The solution is determined on a staggered curvilinear grid in two dimensions and by a Fourier expansion in the third dimension. LÄS MER