Sökning: "large eddy simulation"

Visar resultat 31 - 35 av 173 avhandlingar innehållade orden large eddy simulation.

1. 31. Large eddy simulation of particulate turbulent channel flows

   Författare :Koji Fukagata; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

3. 32. Large eddy simulation of particulate turbulent channel flows

   Författare :Koji Fukagata; KTH; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER

4. 33. Direct and Large-Eddy Simulations of Turbulent  Boundary Layers with Heat Transfer

   Författare :Qiang Li; Philipp Schlatter; Dan S Henningson; Gary Coleman; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; direct numerical simulation DNS ; large-eddy simulation LES ; turbulent boundary layer; passive scalar; coherent structures; free-stream t urbulence FST ; structure ensemble dynamics SED ; massively parallel simulations;

   Sammanfattning : .... LÄS MER

5. 34. Numerical and modelling aspects of large-eddy and hybrid simulations of turbulent flows

   Författare :Matteo Montecchia; Arne V. Johansson; Gert Brethouwer; Stefan Wallin; Dominic Von Terzi; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbulence; wall-bounded flows; large-eddy simulation; SGS modelling; OpenFOAM; hybrid RANS-LES; Engineering Mechanics; Teknisk mekanik;

   Sammanfattning : In this study, the explicit algebraic sub-grid scale (SGS) model (EAM) has been extensively validated in wall-resolved large-eddy simulations (LES) of wall-bounded turbulent flows at different Reynolds numbers and a wide range of resolutions. Compared to eddy-viscosity based models, the formulation of the EAM is more consistent with the physics and allows to accurately capture SGS anisotropy,which is relevant especially close to walls. LÄS MER

7. 35. Large Eddy Simulation of Non-Local Turbulence and Integral Measures of Atmospheric Boundary Layers

   Författare :Igor Esau; Frans Nieuwstadt; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Meteorology; Planetary boundary layers; large eddy simulations; non-local turbulence; Meteorologi; Meteorology; Meteorologi; Meteorology; meteorologi;

   Sammanfattning : A new large eddy simulation (LES) code is developed and used to investigate non-local features of turbulent planetary boundary layers (PBLs). The LES code is based on filtered Navier-Stokes equations, which describe motions of incompressible, Boussinesq fluid at high Reynolds numbers. LÄS MER