Search for dissertations about: "Dan Prof Henningson"
Showing result 1 - 5 of 11 swedish dissertations containing the words Dan Prof Henningson.
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1. Edge states and transition to turbulence in boundary layers
Abstract : 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. READ MORE
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2. Simulations of turbulent boundary layers with heat transfer
Abstract : .... READ MORE
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3. Nonlinear dynamics in transitional wall-bounded flows
Abstract : This thesis focuses on numerical studies of subcritical transition to turbulence in shear flows. The thesis employs a framework based on nonlinear dynamics in the subsequent studies. The geometrical approach to subcritical transition pivots the concepts of edge manifold and edge state. READ MORE
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4. Receptivity, Stability and Sensitivity analysis of two- and three-dimensional flows
Abstract : This work deals with various aspects of boundary-layer stability. Modal and non-modal approaches are first used in the study of the global stability of a jet in crossflow. READ MORE
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5. Feedback and adjoint based control of boundary layer flows
Abstract : Linear and nonlinear optimal control have been investigated in transitional channel and boundary layer .ows. The flow phenomena that we study are governed by the incompressible Navier–Stokes equations and the main aim with the control is to prevent transition from laminar to turbulent flows. READ MORE