Search for dissertations about: "mesoscale models"

Showing result 1 - 5 of 17 swedish dissertations containing the words mesoscale models.

  1. 1. On Mesoscale Modelling of Coupled Chloride-Moisture Transport in Concrete

    Author : Filip Nilenius; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; coupled diffusion; concrete; moisture; mesoscale; chloride ions.; Multiscale modelling; computational homogenization;

    Abstract : The service life behaviour of concrete structures is highly influenced by the ingress of chloride ions. At sufficiently high concentrations, chloride ions can initiate corrosion of embedded reinforcement bars, which may substantially reduce the structure's bearing capacity and ultimately lead to structural collapse. READ MORE

  2. 2. Mesoscale Simulations of Atmospheric Flow in Complex Terrain

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Matthias Mohr; Sergej Zilitinkevich; Leif Enger; Dieter P. Eppel; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Meteorology; Mesoscale modeling; Flow in complex terrain; Atmospheric dispersion; Model comparison; Boundary conditions; Numerical modeling; Atmospheric pressure; Gravity waves; Meteorologi; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Meteorology; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Meteorologi; Meteorology; meteorologi;

    Abstract : The MIUU mesoscale model was further developed, in order to include information on large-scale atmospheric fields from global or regional atmospheric climate- and weather-prediction models. For this purpose, a new lateral boundary condition was developed and implemented into the model. READ MORE

  3. 3. Optical Turbulence Characterization for Ground-Based Astronomy

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Susanna Hagelin; Anna Rutgersson; Elena Masciadri; Valentina Zitelli; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; site testing; atmospheric effects; turbulence; optical turbulence; applied meteorology; mesoscale models; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Meteorology; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Meteorologi; NATURAL SCIENCES Physics Astronomy and astrophysics; NATURVETENSKAP Fysik Astronomi och astrofysik; Meteorologi; Meteorology;

    Abstract : The optical turbulence, which creates perturbations of the wavefronts coming from the stars, is caused by small-scale fluctuations in the index of refraction of the atmosphere and is a problem for astronomers because it limits the maximum resolution of the ground-based telescopes. One way of identifying the best sites to build astronomical observatories, where the influence of the optical turbulence is as small as possible, is to use the standard meteorological parameters to get a first idea of the potential of a site. READ MORE

  4. 4. Stochastic Simulation of Reaction-Diffusion Processes

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Stefan Hellander; Per Lötstedt; Johan Elf; Koichi Takahashi; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; stochastic simulation; microscale; mesoscale; Smoluchowski s equation; hybrid methods; Beräkningsvetenskap med inriktning mot numerisk analys; Scientific Computing with specialization in Numerical Analysis;

    Abstract : Numerical simulation methods have become an important tool in the study of chemical reaction networks in living cells. Many systems can, with high accuracy, be modeled by deterministic ordinary differential equations, but other systems require a more detailed level of modeling. READ MORE

  5. 5. Mesoscale processes in the polar atmosphere radar remote sensing, balloon-borne in situ measurements and modelling

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Maria Mihalikova; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Space Technology; Rymdteknik;

    Abstract : Mesoscale processes (atmospheric phenomena with horizontal scales ranging from a few tens to several hundred kilometres and lasting from a few tens of minutes to a few days) have the potential to influence the chemical composition of the troposphere. Tropopause folds and mountain waves are two important types of mesoscale processes. READ MORE