Sökning: "wall turbulence"
Visar resultat 6 - 10 av 178 avhandlingar innehållade orden wall turbulence.
6. Fundamental studies of non-premixed combustion in turbulent wall jets using direct numerical simulation
Sammanfattning : The present thesis deals with the fundamental aspects of turbulent mixingand non-premixed combustion in wall-jet flows. Direct numerical simulations(DNS) of compressible turbulent flows are performed in a wall-jet configura-tion, which has a close resemblance to many industrial combustion applica-tions. LÄS MER
7. Lagrangian Particles in Turbulence and Complex Geometries
Sammanfattning : Wall-dominated turbulent dispersed multiphase flows occur in a variety of industrial, biological and environmental applications. The complex nature of the arrier and the dispersed phase is elevated to a higher level introducing geometrical complexities such as curved walls. LÄS MER
8. Experimental studies of the plane turbulent wall jet
Sammanfattning : .... LÄS MER
9. 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
10. Turbulence modeling of compressible flows with large density variation
Sammanfattning : In this study we highlight the influence of mean dilatation and mean density gradient on the Reynolds stress modeling of compressible, heat-releasing and supercritical turbulent flows.Firstly, the modeling of the rapid pressure-strain correlation has been extended to self-consistently account for the influence of mean dilatation. LÄS MER