Sökning: "polynomial chaos"
Hittade 5 uppsatser innehållade orden polynomial chaos.
1. Uncertainty quantification for offshore wind turbines
Master-uppsats, KTH/Matematik (Avd.)Sammanfattning : Wind energy is a field with a large number of uncertainties. The random nature of the weather conditions, including wind speed, wind direction, and turbulence intensity, influences the energy output and the structural safety of a wind farm, making its performance fluctuate and difficult to predict. LÄS MER
2. Analys av osäkerheter vid hydraulisk modellering av torrfåror
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Hydraulisk modellering är ett viktigt verktyg vid utvärdering av lämpliga åtgärder för torrfåror. Modelleringen påverkas dock alltid av osäkerheter och om dessa är stora kan en modells simuleringsresultat bli opålitligt. Det kan därför vara viktigt att presentera dess simuleringsresultat tillsammans med osäkerheter. LÄS MER
3. Application of Polynomial Chaos Expansion for Climate Economy Assessment
Master-uppsats, KTH/Optimeringslära och systemteoriSammanfattning : In climate economics integrated assessment models (IAMs) are used to predict economic impacts resulting from climate change. These IAMs attempt to model complex interactions between human and geophysical systems to provide quantifications of economic impact, typically using the Social Cost of Carbon (SCC) which represents the economic cost of a one ton increase in carbon dioxide. LÄS MER
4. Stochastic Optimal Trajectory Generation via Multivariate Polynomial Chaos
Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknikSammanfattning : This thesis presents a framework that has been developed in order to compute stochastic optimal trajectories. This is achieved by transforming the initial set of stochastic ordinary differential equations into their deterministic equivalent by application of Multivariate Polynomial Chaos. LÄS MER
5. Numerical Analysis of Burgers' Equation with Uncertain Boundary Conditions using the Stochastic Galerkin Method
Uppsats för yrkesexamina på avancerad nivå, Institutionen för informationsteknologiSammanfattning : Burgers' equation with stochastic initial and boundary conditions is investigated by a polynomial chaos expansion approach where the solution is represented as a series of stochastic, orthogonal polynomials. The analysis of wellposedness for the stochastic Burgers' equation follows the pattern of that of the deterministic Burgers' equation. LÄS MER