Search for dissertations about: "Lagrangian"

Showing result 1 - 5 of 164 swedish dissertations containing the word Lagrangian.

  1. 1. Atmospheric & Oceanic Applications of Eulerian and Lagrangian Transport Modelling

    University dissertation from Stockholm : Department of Meteorology, Stockholm University

    Author : Joakim Kjellsson; Stockholms universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Eulerian; Lagrangian; trajectory; climate; atmosphere; ocean; modelling; drifter; thermodynamic; climate change; atmosfärvetenskap och oceanografi; Atmospheric Sciences and Oceanography;

    Abstract : This thesis presents several ways to understand transports of air and water masses in the atmosphere and ocean, and the transports of energy that they imply. It presents work using various kinds of observations as well as computer simulations of the atmosphere and oceans. READ MORE

  2. 2. On Sahelian-Sudan rainfall and its moisture sources

    University dissertation from Stockholm : Department of Meteorology, Stockholm University

    Author : Abubakr A. M. Salih; Stockholms universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sudan; Sahel; rainfall; land use; deforestation; moisture sources; moisture transport; Lagrangian; moisture tagging; regional model; climate modeling; Atmospheric Sciences and Oceanography; atmosfärvetenskap och oceanografi;

    Abstract : The African Sahel is one of the most vulnerable regions to climate variability at different time scales. It is an arid to semi-arid region with limited water resources. The summer rainfall is one of these sources, but it exhibits pronounced interannual variability. This thesis presents several aspects of Sahelian Sudan rainfall. READ MORE

  3. 3. Lagrangian CFD Modeling of Impinging Diesel Sprays for DI HCCI

    University dissertation from Stockholm : KTH

    Author : Per Strålin; KTH.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HCCI; Diesel; early direct-injection; impinging nozzle; CFD; Lagrangian modeling; collision models; O’Rourke; TECHNOLOGY Engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik;

    Abstract : The homogeneous charge compression ignition (HCCI) concept has been acknowledged as a potential combustion concept for engines, due to low NOx and soot emissions and high efficiency, especially at part-load.Early direct-injection (DI) during the compression stroke is an option when Diesel fuel is used in HCCI. READ MORE

  4. 4. Eulerian-Lagrangian Simulations of Fuel Mixing in Fluidized Beds

    University dissertation from Stockholm : KTH

    Author : Meisam Farzaneh; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluidization; Eulerian-Lagrangian simulations; fuel mixing; multigrid technique;

    Abstract : Fluidized-bed technology has been commercially applied over several decades. However, there is still a lack of knowledge that can provide detailed understanding of the combustion process in the furnace. READ MORE

  5. 5. Orienting Moduli Spaces of Flow Trees for Symplectic Field Theory

    University dissertation from Uppsala : Department of Mathematics

    Author : Cecilia Karlsson; Uppsala universitet.; [2016]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Contact manifolds; Legendrian submanifolds; Lagrangian immersions; Legendrian contact homology; Morse flow trees; Determinant line bundles; Orientation of moduli spaces; Exact Lagrangian cobordisms; Mathematics; Matematik;

    Abstract : This thesis consists of three scientific papers dealing with invariants of Legendrian and Lagrangian submanifolds. Besides the scientific papers, the thesis contains an introduction to contact and symplectic geometry, and a brief outline of Symplectic field theory with focus on Legendrian contact homology. READ MORE