Search for dissertations about: "Mesh Motion"

Showing result 1 - 5 of 29 swedish dissertations containing the words Mesh Motion.

  1. 1. Adaptive Mesh Refinement and Simulations of Unsteady Delta-Wing Aerodynamics

    University dissertation from Stockholm : Farkost och flyg

    Author : Yann Le Moigne; KTH.; [2004]
    Keywords : delta wing; high angle of attack; vortex; pitching; mesh refinement; UCAV; vortex sensor; tensor ofvelocity gradients;

    Abstract : This thesis deals with Computational Fluid Dynamics (CFD)simulations of the flow around delta wings at high angles ofattack. These triangular wings, mainly used in militaryaircraft designs, experience the formation of two vortices ontheir lee-side at large angles of attack. READ MORE

  2. 2. Weld Pool Simulations

    University dissertation from Göteborg : Department of Mathematical Sciences

    Author : Marcus Edstorp; Högskolan Väst.; Göteborgs universitet.; Gothenburg University.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MATHEMATICS Applied mathematics; MATEMATIK Tillämpad matematik; TECHNOLOGY Industrial engineering and economy Manufacturing engineering and work sciences Manufacturing engineering; TEKNIKVETENSKAP Industriell teknik och ekonomi Produktion och arbetsvetenskap Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik; Arc Welding; Weld Pool; Multiphysics Simulations; Moving Boundaries; Free Surfaces; Mesh Motion; Two-Phase Flow; Incompressible Flow; Electromagnetics; Finite Element Methods;

    Abstract : This investigation is devoted to the study of welding and its effect on the workpiece, focusing on the thermo and fluid dynamical phenomena occuring during a autogenous or nonautogenous arc fusion welding process. Its aim is to simulate the behaviour of the weld pool and analyze the consequence of the solid-liquid phase change, thus obtaining a methodology for predicting the appearance of weld defects related to solidification and cooling. READ MORE

  3. 3. Exploring the Interactive Landscape of Lipid Bilayers

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Christian L. Wennberg; KTH.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular Dynamics; lipid bilayer; cholesterol; permeability; long-range interactions; Lennard-Jones; dispersion; particle-mesh Ewald; Biologisk fysik; Biological Physics;

    Abstract : One of the most important aspects for all life on this planet is theact to keep their cellular processes in a state where they do notreach equilibrium. One part in the upholding of this imbalanced stateis the barrier between the cells and their surroundings, created bythe cell membrane. READ MORE

  4. 4. Computational Models for Animating 3D Virtual Faces

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Marco Fratarcangeli; Linköpings universitet.; Linköpings universitet.; [2013]

    Abstract : Automatic synthesis of facial animation in Computer Graphics is a challenging task and although the problem is three decades old by now, there is still not a unified method to solve it. This is mainly due to the complex mathematical model required to reproduce the visual meanings of facial expressions coupled with the computational speed needed to run interactive applications. READ MORE

  5. 5. Kinematics of the heart : strain and strain-rate using time-resolved three-dimensional phase contrast MRI

    University dissertation from Linköping : Linköpings universitet

    Author : Pernilla Selskog; Linköpings universitet.; Linköpings universitet.; [2004]

    Abstract : During the cardiac cycle, the myocardium (heart muscle) undergoes large elastic deformations as a consequence of the active muscle contraction along the muscle :fibers and their relaxation, respectively. A four-dimensional (4D) description (three spatial dimensions + time) of the kinematics of the myocardium would bring increased understanding of the mechanical properties of the heart and may be of interest in assessing regional myocardial function. READ MORE