Search for dissertations about: "inflow conditions"

Showing result 1 - 5 of 74 swedish dissertations containing the words inflow conditions.

  1. 1. Large Eddy Simulation of Impinging Jets

    Author : Thomas Hällqvist; Laszlo Fuchs; Pierre Sagaut; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Impinging jet; large eddy simulation; heat transfer; vortex formation; circular jet; forcing; inflow conditions; implicit modeling.; Fluid mechanics; Strömningsmekanik;

    Abstract : This thesis deals with Large Eddy Simulation (LES) of impinging air jets. The impinging jet configuration features heated circular jets impinging onto a flat plate. The problem addressed here is of generic nature, with applications in many engineering devices, such as cooling of components in gas turbines, in cars and electronic devices. READ MORE

  2. 2. Hydrogeological Methods in Geotechnical Engineering: Applied to settlements caused by underground construction

    Author : Jenny Persson; Chalmers University of Technology; []
    Keywords : excavation; tunnel; hydrogeology; consolidation; pumping test; Groundwater; inflow rate; settlement; transmissivity; pore pressure; clay;

    Abstract : Improvement in the infrastructure in urban areas generally involves underground construction with tunneling and deep excavations. One important consideration when constructing in cities founded on soft soil is settlement resulting from groundwater drawdown. The potential cost of excessive settlement in these projects is immense. READ MORE

  3. 3. Modelling Techniques for Large-Eddy Simulation of Wall-Bounded Turbulent Flows

    Author : Timofey Mukha; Mattias Liefvendahl; Hrvoje Jasak; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Wall modelling; Inflow generation; Large-eddy simulation; OpenFOAM; Computational fluid dynamics; Scientific Computing; Beräkningsvetenskap;

    Abstract : Large-eddy simulation (LES) is a highly accurate turbulence modelling approach in which a wide range of spatial and temporal scales of the flow are resolved. However, LES becomes prohibitively computationally expensive when applied to wall-bounded flows at high Reynolds numbers, which are typical of many industrial applications. READ MORE

  4. 4. Baltic shore-lands facing climate change

    Author : Alma Strandmark; Sara Cousins; Martin Entling; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Arthropod diversity; Baltic shores; Beetles; Climate change; Energy flows; Marine inflow; Sea level rise; Shore ecosystems; Species distribution; Spiders; Plant Ecology; växtekologi;

    Abstract : This thesis provides new insight concerning drivers behind differences in arthropod diversity and abundance in Baltic shore ecosystems and how the arthropod communities might be affected when the conditions in the Baltic Sea are altered due to climate change.  The focus has been on climate related changes that are unique for coastal ecosystems, especially sea level rise and changes in the inflow of marine nutrients. READ MORE

  5. 5. Computational fluid dynamics for dispersion calculation in urban surroundings

    Author : Jan Burman; Anna Rutgersson; Sven-Erik Gryning; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; CFD; RANS; LES; Toxicological effects; Synthetic boundary conditions; Stable boundary layer.; Meteorologi; Meteorology;

    Abstract : Increased knowledge on dispersion processes in urban environment will enhance the ability in the society to handle events where releases of toxic substances can occur. Also, the ability to increase preparedness at locations where such events potentially can emerge. READ MORE