Search for dissertations about: "panel method"

Showing result 1 - 5 of 184 swedish dissertations containing the words panel method.

2. 1. Potential Flow Panel Methods for the Calculation of Free-surface Flows with Lift

   Author : Carl-Erik Janson; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; desingularized; shape optimization; Rankine source; waves; OCTOPUS; dipole; MMA; Dawson operator; boundary layer; vortex; Method of Moving Asymptotes; nonlinear; sailing yacht; four point operator; surface piercing wing; Navier-Stokes; numerical method; lift force; raised panel method; discrete Fourier transform; collocation point shift; potential flow; CFD; free surface; induced drag; SHIPFLOW; dispersion; damping; analytical method; hydrofoil;

   Abstract : Two non-linear Rankine-source panel methods are developed and implemented in the same computer code. The first method uses a four-point upwind operator on the free-surface to compute the velocity derivatives and to enforce the radiation condition while the second method uses an analytical expression for the velocity derivatives and a collocation point shift one panel upstream to prevent upstream waves. READ MORE

4. 2. A Panel Method for Supersonic Flow

   Author : David Pettersson; Per Weinerfeldt; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; MATHEMATICS; MATEMATIK;

   Abstract : Supersonic airflow is usually described by a nonlinear hyperbolic system of equations. In this thesis we consider an aircraft represented by a union of thin plates orthogonal to the direction of Right, and describe the derivation of an approximate linear model for the airflow around it. The linear model is reduced to a system of integral equations. READ MORE

5. 3. Investigations of unconventional marine structures by the finite element method

   Author : Mats Heder; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; OBO-vessels; hull strength; stiffened panel; finite element method; passenger ship; thermal stress; buckling; residual strength;

   Abstract : .... READ MORE

6. 4. Municipal Energy Planning : Scope and Method Development

   Author : Jenny Stenlund Nilsson Ivner; Olof Hjelm; Lena Neij; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy planning; energy systems; environmental assessment; decision-making; participation; Other industrial engineering and economics; Övrig industriell teknik och ekonomi;

   Abstract : Swedish municipalities are required to produce a municipal energy plan for their energy supply and use. Whether energy planning is suitable to manage local energy systems, however, is subject to debate. This thesis maps municipal energy planning: the scopes of energy plans and whether goals stated in energy plans are fulfilled. READ MORE

7. 5. A Factor Analytical Approach to Dynamic Panel Data Models

   Author : Milda Norkute; Nationalekonomiska institutionen; []
   Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Dynamic panel data models; Factor analytical method; Bias; Incidental trends; MA errors; Factor-GMM;

   Abstract : This thesis deals with the development and application of new estimation approaches based on factor analysis for estimation and inference in dynamic panel data models with fixed-effects. A new factor analytical method (FA) for the estimation of fixed-effects dynamic panel data models is proposed in Bai ("Fixed-Effects Dynamic Panel Models, A Factor Analytical Method". READ MORE