Search for dissertations about: "Wake"

Showing result 1 - 5 of 184 swedish dissertations containing the word Wake.

  1. 1. Analysis of the Base Wake on Passenger Vehicles

    University dissertation from Chalmers University of Technology

    Author : Lennert Sterken; Chalmers tekniska högskola.; Chalmers University of Technology.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; External aerodynamics; Wake; Wind tunnel; CFD; Pressure measurements; Local drag;

    Abstract : Car manufacturers are presented by a continuous increase in fuel prices and by ever more strict legislations regarding CO2-emissions. Decreasing the driving resistance and hence the fuel consumption of their vehicles helps to improve their market share. READ MORE

  2. 2. Wind Tunnel Studies of Turbulent Wakes

    University dissertation from Chalmers University of Technology

    Author : Murat Tutkun; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningsmekanik; Fluid mechanics; wake; wind tunnel; axisymmetric wake; turbulence; proper orthogonal decomposition; pod; two-point correlation; surface visualization; hot-wire anemometry; bump; separation;

    Abstract : .... READ MORE

  3. 3. Birds in the Flow: Flight Mechanics, Wake Dynamics and Flight Performance

    University dissertation from Mikael Rosén, Ecology Building, SE-223 62 Lund, Sweden

    Author : Mikael Rosén; Lunds universitet.; Lund University.; [2003]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Djurekologi; Animal ecology; Eleonora s falcon.; hunting; optimum wingspan; tail posture; wingbeat kinematics; wake topology; DPIV; flight performance; wake dynamics; flight mechanics; wind tunnel; Flight; bird;

    Abstract : Popular Abstract in Swedish Fåglars flygförmåga I alla tider har vi fascinerats av fåglars förmåga att flyga, och många försök att förstå och efterlikna dem har gjorts. Kanske den förste som på allvar intresserade sig för mekanismerna bakom fåglars flykt var Leonardo da Vinci som runt år 1500 funderade på hur fåglar alstrar lyftkraft. READ MORE

  4. 4. Numerical computations of wind turbine wakes and wake interaction Optimization and control

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Karl Nilsson; KTH.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Actuator disc method; Actuator line method; Blade element momentum method; Wind turbine wake; Wake interaction; CFD; LES; EllipSys3D;

    Abstract : In the present thesis the wake flow behind wind turbines is analyzed numerically using large-eddy simulations. The wind turbine rotors are modeled by using either the actuator disc method or the actuator line method in which the blades are represented by body forces computed with airfoil data. READ MORE

  5. 5. The Axisymmetric Turbulent Wake

    University dissertation from Chalmers University of Technology

    Author : Peter B. V. Johansson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fysik; Physics; Teknisk mekanik; Engineering mechanics;

    Abstract : This thesis presents a theoretical and experimental study of the turbulent axisymmetric wake. In the theoretical part, an equilibrium similarity solution of the far wake was derived that was found to admit to two different solutions for this flow. READ MORE