Search for dissertations about: "scalar age"

Found 4 swedish dissertations containing the words scalar age.

  2. 1. The age of transported scalars in fluid mechanics

    Author : Federico Ghirelli; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; grate furnace; velocity correlation; fluid age; scalar age; turbulence model; residence time; energy spectrum; turbulence age;

    Abstract : Computational fluid dynamics (CFD) is applied to the reacting flow in the freeboard of a 30MW biofuel fired grate furnace and results are validated by comparison with data from an extensive measurement campaign. The influence of the fuel bed model on the results of the freeboard model is investigated. READ MORE

  4. 2. Fluxes and Mixing Processes in the Marine Atmospheric Boundary Layer

    Author : Erik Olof Nilsson; Anna Rutgersson; Harm Jonker; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Waves; Growing sea; Swell; Marine boundary layer; Air-sea interaction; Mixing; Momentum flux; Wind stress; Flux attenuation; Sensor separation; Large eddy simulation; Multiresolution analysis; Coupling; Wave model; Climate model; Wave age; Meteorology; Meteorologi;

    Abstract : Atmospheric models are strongly dependent on the turbulent exchange of momentum, sensible heat and moisture (latent heat) at the surface. Oceans cover about 70% of the Earth’s surface and understanding the processes that control air-sea exchange is of great importance in order to predict weather and climate. READ MORE

  5. 3. Studying earnings trajectories as functional outcomes

    Author : Kreske Ecker; Xavier de Luna; Lina Schelin; Jose Peña; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; functional data analysis; causal inference; earnings trajectories; simultaneous confidence bands; missing data; Statistics; statistik;

    Abstract : In this thesis, we present methods for studying patterns of income accumulation over time using functional data analysis. This is made possible by the availability of large-scale longitudinal register data in Sweden. READ MORE

  6. 4. Psychology for sustainable shared mobility: An investigation of the use of private cars and carsharing services

    Author : Erika Martins Silva Ramos; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; carsharing; travel behaviour; sustainable transportation; trip purpose;

    Abstract : What are people’s travel patterns – both users and non-users of carsharing and private cars in European cities? What are the main psychological aspects of and motives for making a travel mode choice? This thesis aims to investigate the relationship of habits with attitudinal, normative and motivational aspects to understand the use of private cars and carsharing. Study I presents a classification of motives considered relevant when selecting a mode of transport. READ MORE