Search for dissertations about: "unsteady aerodynamic load"

Found 4 swedish dissertations containing the words unsteady aerodynamic load.

  2. 1. Development of Vortex Filament Method for Wind Power Aerodynamics

    Author : Hamidreza Abedi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; unsteady aerodynamic load; atmospheric turbulence; fatigue loads; Free wake model; forest canopy; wind turbine; vortex method; large-eddy simulation;

    Abstract : Wind power is currently one of the cleanest and widely distributed renewable energy sources serving as an alternative to fossil fuel generated electricity. Exponential growth of wind turbines all around the world makes it apt for different research disciplines. READ MORE

  4. 2. Experimental Investigation of Performance, Flow Interactions and Rotor Forcing in Axial Partial Admission Turbines

    Author : Jens Fridh; Torsten Fransson; Björn Laumert; Jürgen Seume; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; axial turbine; partial admission; part loads; experimental investigation; turbine performance; losses; dynamic rotor forces; forced response; unsteady flow; axialturbin; partialpådrag; dellaster; reglersteg; experimentell undersökning; turbinprestanda; förluster; dynamiska krafter; rotorvibration; instationär strömning;

    Abstract : The thesis comprises a collection of four papers with preceding summary and supplementary appendices. The core investigation solely is of experimental nature although reference and comparisons with numerical models will be addressed. READ MORE

  5. 3. Analysis of Dynamic Flight Loads

    Author : Natascha Jansson; Ulf Ringertz; David Eller; Peter Linde; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis deals with the determination of loads on an aircraft struc- ture during flight. The focus is on flight conditions where the loads are significantly time-dependent. Analysis of flight loads is primarily motivated to ensure that structural failure is avoided. READ MORE

  6. 4. Numerical investigation of blade flutter at or near stall in axial turbomachines

    Author : Wolfgang Höhn; KTH; []
    Keywords : ;

    Abstract : During the design of the compressor and turbine stages oftoday's aeroengines aerodynamically induced vibrations becomeincreasingly important since higher blade load and betterefficiency are desired. Aerodynamically induced vibrations inturbomachines can be classified into two general categories,i.e. READ MORE