Search for dissertations about: "Local drag"

Showing result 1 - 5 of 40 swedish dissertations containing the words Local drag.

  1. 1. Deviation From Local Equilibrium During the Austenite to Ferrite Transformation in Steel-A Modelling Approach

    University dissertation from Stockholm : Materialvetenskap

    Author : Joakim Odqvist; KTH.; [2003]
    Keywords : Interface; Solute drag; Paraequilibrium; Simulation; Local Equilibrium;

    Abstract : This thesis highlights the role of phase interfaces on phasetransformations in metallic materials. The deviation from localequilibrium at the moving phase interface has been analysed interms of solute drag theory and finite interface mobility. Inparticular the planar growth of proeutectoid ferrite fromaustenite in steel has been studied. READ MORE

  2. 2. Passenger Car Wheel Aerodynamics

    University dissertation from Stockholm : Materialvetenskap

    Author : Christoffer Landström; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CFD; tyres; wind tunnel; Passenger car aerodynamics; ground simulation; wheel rotation; drag; wheels;

    Abstract : Current and future requirements for efficiency force the automotive industry to consider all aspects of reducing the energy consumption of road going vehicles. An important aspect of reducing fuel consumption is reduced aerodynamic drag, which at highway cruising speeds is dominating the total drag force for both cars and heavy goods vehicles. READ MORE

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

    University dissertation from Stockholm : Materialvetenskap

    Author : Lennert Sterken; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pressure measurements; External aerodynamics; Wind tunnel; Wake; Local drag; CFD;

    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 improvetheir market share. READ MORE

  4. 4. Fluid flow in wood fiber network

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Patrik Pettersson; Luleå tekniska universitet.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Abstract : Cellulose material is processed to pulp suspensions and MDF boards in order to produce products such as papers, magazines, laminate floors or door skins. A critical stage of these processes is when the cellulose fiber networks are compressed to specific densities and when most of the fluid originally positioned between and inside the fibers is forced to leave the network. READ MORE

  5. 5. Water resistance of Scots pine joints produced by linear friction welding

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Mojgan Vaziri; Luleå tekniska universitet.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science - Other processing assembly; wood; wood welding; crack; CT scanning; image processing; MRI; microdensitometry; CPMAS C NMR; density; water absorption; tensile-shear strength; Teknisk materialvetenskap - Övrig bearbetning sammanfogning; Träteknik; Wood Technology;

    Abstract : Wood welding is a mechanical friction process allowing the assembly of timber without any adhesives. The process consists of applying mechanical friction, under pressure, alternately to the two wood surfaces to be welded. READ MORE