Sökning: "Extended grid method"
Visar resultat 11 - 15 av 29 avhandlingar innehållade orden Extended grid method.
11. High order summation-by-parts methods in time and space
Sammanfattning : This thesis develops the methodology for solving initial boundary value problems with the use of summation-by-parts discretizations. The combination of high orders of accuracy and a systematic approach to construct provably stable boundary and interface procedures makes this methodology especially suitable for scientific computations with high demands on efficiency and robustness. LÄS MER
12. Partitioned methods for time-dependent thermal fluid-structure interaction
Sammanfattning : The efficient simulation of thermal interaction between fluids and structures is crucial in the design of many industrial products, e.g. turbine blades or rocket nozzles. LÄS MER
13. Power Flow Analysis of the Swedish Railway Electrical System
Sammanfattning : This thesis deals with analysis of the steady state power flow in the Swedish railway electrical system. Finding the steady state of the system means that all voltages and power flows in the system are known. The trains are supplied from the public grid using frequency converters. LÄS MER
14. Time-varying Waveform Distortion in Low voltage network
Sammanfattning : The progressive advancement in new technologies has introduced new types of equipment into the grid. Some of these devices, which have gained significant popularity in the last few decades are photovoltaic (PV) systems and wind power systems from the generation side, and energy-efficient lighting i.e. LÄS MER
15. Level-set methods and geodesic distance functions
Sammanfattning : The work in this thesis focuses on efficient implementations of level-set methods and geodesic distance functions. The level-set method is a grid based design that inherits many favorable traits from implicit geometry. LÄS MER