Sökning: "drag"

Visar resultat 1 - 5 av 380 avhandlingar innehållade ordet drag.

  1. 1. Snacka om (o)synlighet : Familjeföretagarens nästa drag

    Författare :Henrietta Nilson; Monika Kostera; Frederic Bill; Anne Kovalainen; Linnéuniversitetet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; family business; invisibility; visibility; Freire; critical interactive method; dialogue.; Business administration; Företagsekonomi;

    Sammanfattning : The aim of this thesis is to identify and understand the phenomena of invisibility and visibility ((in)visibility) in families' situation in family business. As (in)visibility are phenomena that surrounds us in our every day life and the consciousness about them is limited, a critical perspective is embraced. LÄS MER

  2. 2. Drag reduction using plasma actuators

    Författare :Romain Futrzynski; Gunilla Efraimsson; P. Henrik Alfredsson; Charles Mockett; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; flow control; drag reduction; plasma actuator; DMD; LES; optimization; pulsating flow; strömningskontroll; motståndsminskning; plasma ställdon; DMD; LES; optimering; pulserande flöde; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : This thesis is motivated by the application of active flow control on the cabin of trucks, thereby providing a new means of drag reduction. Particularly, the work presented strives to identify how plasma actuators can be used to reduce the drag caused by the detachment of the flow around the A-pillars. LÄS MER

  3. 3. Vehicle wakes subject to side wind conditions

    Författare :Magnus Urquhart; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; drag; surrogate model; cavity; Latin Hypercube Sampling; wake; aerodynamics; real world conditions; Proper Orthogonal Decomposition; wind averaged drag; Radial Basis Functions; side wind; optimization; tapered extensions; cycle averaged;

    Sammanfattning : Passenger vehicles are associated with travel flexibility, today it is clear that this flexibility impacts the environment. Passenger vehicles account for more than one-tenth of all greenhouse gasses in Europe with approximately a quarter of the vehicle's energy consumption wasted as aerodynamic drag. LÄS MER

  4. 4. Real Time Drag Minimization

    Författare :Marianne Jacobsen; Ulf Ringertz; Anders Forsgren; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aeronautics; optimization; experimental verification; Vehicle engineering; Farkostteknik;

    Sammanfattning : This thesis focuses on the use of multiple redundant control surfaces to increase performance during flight. There is no clear-cut definition of performance. It may differ between applications, but here, the amount of drag for a given flight condition is used. LÄS MER

  5. 5. Vissa drag i Badelundaåsens geohydrologi : (Sträckan Mälaren - Sätra brunn)

    Författare :Jan De Geer; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : Undersökningen har genomförts som en hydrogeologisk, lokalregional inventering av Badelundaåsen och dess biåsar. Den speciellt inriktade kartering, som utfördes i skalan 1:20 000 omfattade själva åsen jämte dalens begränsning. LÄS MER