Essays about: "Daniel Lilja"

Found 2 essays containing the words Daniel Lilja.

1. 1. Computing Equivalent hydropower models in Sweden using inflow clustering

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Daniel Lilja; [2023]
   Keywords : Hydropower; Equivalent; Bilevel; Optimization; Clustering; Inflow; Sweden; Vattenkraft; Ekvivalent; Bilevel; Optimering; Klusteranalys; Inflöde; Sverige;

   Abstract : To simulate a hydropower system, one can use what is known as a Detailed model. However, due to the complexity of river systems, this is often a computationally heavy task. Equivalent models, which aim to reproduce the result of a Detailed model, are used to significantly reduce the computation time for these simulations. READ MORE

3. 2. Computation of Eigenmodes in Three-Dimensional Structures

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Daniel Lilja; Olof Hummelgren; [2020]
   Keywords : ;

   Abstract : In this thesis the eigenmodes and eigenvalues of three dimensional structures are analyzed using the Python environment FEniCS in combination with an implementation of the Arnoldi method in MATLAB for calculation of eigenpairs. This is done by considering separable solutions of the wave equation and subsequently expressing these as the solutions to an eigenvalue problem. READ MORE