Search for dissertations about: "flow control"

Showing result 6 - 10 of 1159 swedish dissertations containing the words flow control.

  2. 6. Adjoint based control and optimization of aerodynamic flows

    Author : Mattias Chevalier; KTH; []
    Keywords : transition control; flow control; nonlinear optimal control; boundary layer flow; Falkner-Skan-Cooke flow; quasi-1D flow; shape optimization; adjoint equations; DNS;

    Abstract : .... READ MORE

  4. 7. Extremum Seeking Control : Stability, Accuracy, and Applications

    Author : Khalid Atta; Ying Tan; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Reglerteknik; Control Engineering;

    Abstract : In many applications, there is a variable that indicates the overall performance and that must be maximized, such as the output of a hydro power turbine or a mineral processing plant, or that must be minimized, such as CO2 emissions or the consumption of resources. Extremization of this variable (maximization or minimization) through adjusting the influencing manipulated variables is occasionally required without prior knowledge of the optimal values of the manipulated variables or of the optimized variable. READ MORE

  5. 8. Global stability and feedback control of boundary layer flows

    Author : Espen Åkervik; Dan S. Henningson; Luca Brandt; Dwight Barkley; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Stability; Global Stability; Feedback Control; Control; Estimation; Absolute Convective Instabilities; Model Reduction; Fluid mechanics; Strömningsmekanik;

    Abstract : In this thesis the stability of generic boundary layer flows is studied from a global viewpoint using optimization methods. Global eigenmodes of the incompressible linearized Navier-Stokes equations are computed using the Krylov subspace Arnoldi method. READ MORE

  6. 9. Flexible Information-Flow Control

    Author : Daniel Schoepe; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; software security; information-flow control; program verification; language-based security;

    Abstract : As more and more sensitive data is handled by software, its trustworthiness becomes an increasingly important concern. This thesis presents work on ensuring that information processed by computing systems is not disclosed to third parties without the user's permission; i.e. to prevent unwanted flows of information. READ MORE

  7. 10. Distributed control of interconnected systems and its application in traffic control

    Author : Azita Dabiri; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Linear Matrix Inequality; Distributed control; Traffic flow modelling and control; Input saturation;

    Abstract : Over the past few decades, the need for mobility and road transportation has been significantly increased over the world. This turned as a dilemma in many metropolitan areas as traffic congestion costs energy and takes time of all individuals who live in big cities. READ MORE