Search for dissertations about: "stall"

Showing result 16 - 20 of 45 swedish dissertations containing the word stall.

  2. 16. Investigation of boundary layer transition for transonic flow over compressor and turbine airfoils

    Author : Susanne Svensdotter; KTH; []
    Keywords : ;

    Abstract : This thesis considers the laminar-turbulent transition overcompressor and turbine airfoils at high subsonic and transonicflow conditions.First, experiments on the laminar-turbulent transition on anisolated airfoil in high subsonic and transonic flow wereperformed. READ MORE

  4. 17. Dynamics of peptide chains during co-translational translocation, membrane integration & domain folding

    Author : Rickard Hedman; Gunnar von Heijne; Daniel N. Wilson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ribosome; membrane integration; translocation; folding; arrest peptide; SecM; Biochemistry; biokemi;

    Abstract : The biosynthesis of proteins occurs at the ribosomes, where amino acids are linked together into linear chains. Nascent protein chains may undergo several different processes during their synthesis. Some proteins begin to fold, while others interact with chaperones, targeting factors or processing enzymes. READ MORE

  5. 18. Analytic Parameterization of Stabilizing Controllers for the Moore-Greitzer Compressor Model

    Author : Alina Andersson; Institutionen för reglerteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nonlinear control; Moore-Greitzer compressor model; Dynamic output feedback; Compressors; Nonlinear control systems; Stability robustness; Constraints; Nonlinearity; Lyapunov stability;

    Abstract : This work presents an extension, simplification and application of a design procedure for dynamic output feedback design for systems with nonlinearities satisfying quadratic constraints (QC). Our method was motivated by the challenges of output feedback control design for the three-state Moore-Greitzer (MG) compressor model. READ MORE

  6. 19. Large Eddy Simulation of the Flow around a High-Lift Airfoil

    Author : Simon Dahlström; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; mildly separation; hybrid RANS LES; incompressible finite volume; airfoil; transition; large Eddy simulation; approximate wall boundary condition;

    Abstract : The work presented in this thesis concerns the efforts of conducting a Large Eddy Simulation (LES) around an airfoil. The airfoil is close to stall, near maximum lift and the Reynolds number is high. In the flow a transitional separation bubble is present. READ MORE

  7. 20. Data Prefetching Techniques Targeting Single and a Network of Processing Nodes

    Author : Magnus Karlsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis considers two approaches to the design of high-performance computers. In a single processing node with one processor, performance is degraded when requested data is not found in the cache, because it has to be retrieved from slower memory. READ MORE