Search for dissertations about: "Two- phase problems"

Showing result 1 - 5 of 277 swedish dissertations containing the words Two- phase problems.

  1. 1. Two Problems in non-linear PDE’s with Phase Transitions

    University dissertation from KTH Royal Institute of Technology

    Author : Karl Jonsson; Henrik Shahgholian; Tomas Sjödin; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Conductivity jump; Free boundary problem; Quasilinear elliptic equation; Mathematical techniques; Nonlinear analysis; Free boundary; Free-boundary problems; Quasi-linear elliptic; Quasilinear elliptic equations; Hele-Shaw flow; non-local; implicit function theorem; Heterogeneous Multi Scale; HMM; Finite Element; FEM; FE; Matematik; Mathematics;

    Abstract : This thesis is in the field of non-linear partial differential equations (PDE), focusing on problems which show some type of phase-transition. A single phase Hele-Shaw flow models a Newtoninan fluid which is being injected in the space between two narrowly separated parallel planes. READ MORE

  2. 2. Two Optimization Problems in Genetics Multi-dimensional QTL Analysis and Haplotype Inference

    University dissertation from KTH Royal Institute of Technology

    Author : Carl Nettelblad; Sverker Holmgren; José M. Álvarez-Castro; Jukka Corander; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; quantitative trait loci; genome-wide association studies; hidden Markov models; numerical optimization; linkage analysis; haplotype inference; genotype imputation; high performance computing;

    Abstract : The existence of new technologies, implemented in efficient platforms and workflows has made massive genotyping available to all fields of biology and medicine. Genetic analyses are no longer dominated by experimental work in laboratories, but rather the interpretation of the resulting data. READ MORE

  3. 3. Regularity properties of two-phase free boundary problems

    University dissertation from Stockholm : KTH

    Author : Erik Lindgren; Henrik Shah gholian; Regis Monneau; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; MATHEMATICS Algebra; geometry and mathematical analysis Mathematical analysis; MATEMATIK Algebra; geometri och analys Analys;

    Abstract : This thesis consists of four papers which are all related to the regularity properties of free boundary problems. The problems considered have in common that they have some sort of two-phase behaviour.In papers I-III we study the interior regularity of different two-phase free boundary problems. READ MORE

  4. 4. Adaptive Finite Element Methods for Compressible Two-Phase Flow

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Erik Burman; Göteborgs universitet.; Gothenburg University.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; adaptive finite element methods; two-phase flow; compressible flow; conservation laws; hyperbolic systems; a posteriori error estimates; streamline diffusion; stability analysis; quantitative error control; adaptive algorithms; quantitative error control; conservation laws; adaptive algorithms; compressible flow; stability analysis; hyperbolic systems; two-phase flow; streamline diffusion; a posteriori error estimates;

    Abstract : In this thesis we develop, apply and analyse adaptive finite element methods with error control for compressible flow problems, focusing in particular on two-phase flow. The adaptive algorithms, aiming at quantitative error control with efficient use of computational resources, are based on a posteriori error estimates, where the error is estimated in terms of the computed solution, the local mesh-size and certain stability factors. READ MORE

  5. 5. Modelling of Moving Contact Lines in Two-Phase Flows

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Hanna Holmgren; Gunilla Kreiss; Stefan Turek; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computational fluid dynamics; Two-phase flow; Contact lines; Scientific Computing; Beräkningsvetenskap;

    Abstract : Moving contact line problems appear in many natural and industrial processes. A contact line is formed where the interface between two immiscible fluids meets a solid wall. Examples from everyday life include raindrops falling on a window and water bugs resting on water surfaces. READ MORE