Sökning: "crosswinds"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet crosswinds.

  1. 1. Unsteady aerodynamic effects on the driving stability of passenger vehicles

    Författare :Adam Brandt; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aerodynamics; wake dynamics; high speed; Vehicle dynamics; driving stability; crosswinds;

    Sammanfattning : The passenger car is a vital part of modern society, giving people the freedom of flexible travel. As technology advances, customers increase their demand for future products. The automotive industry must therefore adapt to society's requirements for energy-efficient travel, where developing low-drag vehicles is key. LÄS MER

  3. 2. Driving stability of passenger vehicles under crosswinds

    Författare :Adam Brandt; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; crosswind; high speed; aerodynamics; driving stability; vehicle dynamics;

    Sammanfattning : Passenger cars are a vital part of modern society, giving people the freedom of flexible travel. As technology advances, customers increase their demands for future products. The automotive industry must, therefore, adapt to society's requirements of energy-efficient travel, where developing low drag vehicles is key. LÄS MER

  4. 3. On motion resistance estimation and modeling for heterogeneous road vehicles

    Författare :Mikael Askerdal; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; road vehicles; motion resistance; passenger cars.; Range estimation; commercial heavy vehicle combinations; rolling resistance; air resistance; state estimation;

    Sammanfattning : Climate change is driving the development of CO2 reducing technologies within the transportation industry. One of the most promising technologies is battery electric vehicles. LÄS MER

  5. 4. Adaptive flexibility in migratory behaviour of shorebirds

    Författare :Johanna Grönroos; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bird migration; compensation; departure decision; flight distance; migration speed; migration strategy; orientation; shorebird; stopover; wind drift; wind selectivity;

    Sammanfattning : The phenomenon of bird migration has long fascinated us humans and it has prompted questions like where do they go or come from and how do they find their way? Arctic shorebirds are well known for their spectacular long-distance migrations with some species travelling more than 10 000 km every spring and autumn, and some even cover this distance in one single nonstop flight. The aim of my thesis was to investigate the flexibility of Arctic shorebirds when it comes to orientation behaviour, departure behaviour and migration strategy. LÄS MER

  7. 5. Aerodynamics simulations of ground vehicles in unsteady crosswind

    Författare :Tristan Favre; Gunilla Efraimsson; Michael Leschziner; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Detached-Eddy Simulations; Crosswind; Aerodynamics; ;

    Sammanfattning : Ground vehicles, both on roads or on rail, are sensitive to crosswinds and the handling, travelling speeds or in some cases, safety can be affected. Full modelling of the crosswind stability of a vehicle is a demanding task as the nature of the disturbance, the wind gust, is complex and the aerodynamics, vehicle dynamics and driver reactions interact with each other. LÄS MER