Sökning: "inhomogeneous fluid"

Visar resultat 11 - 15 av 28 avhandlingar innehållade orden inhomogeneous fluid.

  1. 11. Cavitation Mechanisms Related to Erosion Studies on Kaplan Turbines, Foils, and Propellers

    Författare :Mikael Grekula; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cavitation; experimental studies; cavitation erosion; cavitation mechanisms; hydrodynamics; cavitation noise; cavitation assessment;

    Sammanfattning : The overall aim of this thesis work is to study cavitation behaviours related to erosion. The focus is on processes of observable scale, i.e. the process prior to the micro scale level at which the actual damage is generated. LÄS MER

  3. 12. Boundary Conditions for Spectral Simulations of Atmospheric Boundary Layers

    Författare :Erik Boström; Philipp Schlatter; Bernard J. Geurts; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : An atmospheric boundary layer (ABL) is generally a very high Reynolds number boundary layer over a fully rough surface that is influenced by different external forces. Numerical simulations of ABLs are typically demanding, particularly due to the high Reynolds numbers. LÄS MER

  4. 13. Numerical modelling of sound propagation to closed urban courtyards

    Författare :Maarten Hornikx; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; courtyard; urban noise abatement schemes; pseudospectral; road traffic noise; equivalent sources method; scale model study; urban canyon;

    Sammanfattning : Because modern urban environments suffer from excessive levels of road traffic noise, access to closed courtyards is essential in order to offer urban sound environments of high quality with regard to health and perceived sound. To reach this quality, which is described by the quiet side definition, the 24-hour equivalent noise level should be below 45 dB(A). LÄS MER

  5. 14. Electromagnetic Fields in Moving and Inhomogeneous Media

    Författare :Paul Piwnicki; KTH; []
    Nyckelord :Moving Media; Light; Genaral Relativity;

    Sammanfattning : The present thesis deals with electromagnetic effectscreated by the motion or inhomogeneity of a dielectricmedium.In the first paper the quantum R\"ontgen effect isdiscussed. Here a rotating Bose-Einstein condensate -- oranother kind of quantum fluid -- is placed in a chargedcapacitor. The medium's rotation creates a magnetic field. LÄS MER

  7. 15. Extension of PC-SAFT to model inhomogeneous and transport properties

    Författare :Gulou Shen; Georgios Kontogeorgis; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy Engineering; Energiteknik;

    Sammanfattning : CO2 separation plays an important role in greenhouse gas emission mitigation, in bio-fuel production via biomass gasification as well as in biogas upgrading. The current CO2 separation technologies are energy intensive, and new cost-effective CO2 separation technologies are needed. LÄS MER