Sökning: "turbulence"
Visar resultat 26 - 30 av 700 avhandlingar innehållade ordet turbulence.
26. Space-adaptive simulation of transition and turbulence in shear flows
Sammanfattning : Transitional and turbulent shear flows are ubiquitous, from the boundary layer developing on an aeroplane wing to the flow within the aortic arch. In this thesis, we study wall-bounded and free shear flows through direct numerical simulations. LÄS MER
27. Studies of turbulent boundary layer flow throughdirect numerical simulation
Sammanfattning : .... LÄS MER
28. Edge states and transition to turbulence in boundary layers
Sammanfattning : The focus of this thesis is the numerical study of subcritical transition to turbulence in boundary-layer flows. For the most part, boundary layers with uniform suction are considered. Constant homogeneous suction counteracts the spatial growth of the boundary layer, rendering the flow parallel. LÄS MER
29. Mean Wind and Turbulence Conditions in the Boundary Layer above Forests
Sammanfattning : As wind turbines have grown, new installation areas become possible. Placing wind turbines in forested landscapes introduce uncertainties to the wind resource estimation. LÄS MER
30. An Experimental Study of Reynolds Stress Closures in Shear Free and Weakly Sheared Turbulence
Sammanfattning : The objective of this thesis work is to obtain data enabling evaluation of closure hypotheses used in the Reynolds stress transport (RST) equations. Special attention has been devoted to studies of flow fields with shear free and weakly sheared turbulence. LÄS MER