Essays about: "Johan Wall"

Showing result 6 - 10 of 15 essays containing the words Johan Wall.

  1. 6. Turbulent flow control via nature inspired surface modifications

    University essay from KTH/Mekanik

    Author : Miguel Beneitez; Johan Sundin; [2017]
    Keywords : flow control; DNS; lattice-Boltzmann; surface coating; friction drag; surface structures; superhydrophobic; porous; fibers; micropillars;

    Abstract : Many of the flows in nature are turbulent. To modify turbulent flows, nature serves itself with different types of coatings. Sharks have riblets-like structures on their skin, fishes have slime with polymers and the surface of the lotus flower has superhydrophobic properties. READ MORE

  3. 7. Opportunities to realize benefits of IT investments: A case study of a shared service center at Atlas Copco

    University essay from Göteborgs universitet/Graduate School

    Author : Nathalie Andrén; Johan Nilsson Wall; [2016-09-15]
    Keywords : Management control; Cybernetic controls; Balanced Scorecard; Contingency; IT investments; Strategic Alignment; Strategic Emphasis; Information Systems;

    Abstract : Background and Problem: A large proportion of firms’ investments consist of information technology (IT) investments. The direct benefits of IT investments are best captured at the process level and to achieve business value, strategic alignment between business and IT is needed. Statistics show that to control IT investments is not an easy task. READ MORE

  4. 8. A CFD Method for Simulation of Gas-Liquid Flow in Cooling Systems : An Eulerian-Eulerian Approach

    University essay from Linköpings universitet/Mekanisk värmeteori och strömningslära

    Author : Malin Lind; Karl Johan Josefsson; [2016]
    Keywords : CFD; Gas-Liquid; Two-phase; Eulerian; Air bubbles; Flow; Eulerian-Eulerian; Cooling system;

    Abstract : When designing modern engines it is important to construct a cooling system that cools the engine structure efficiently. Within the cooling system there is always a certain amount of air which can accumulate and form air pockets in critical areas, such as the water jacket, which can lead to wall degradation. READ MORE

  5. 9. Modeling of Fuel Dynamics in a Small Two-Stroke Engine Crankcase

    University essay from Linköpings universitet/Fordonssystem; Linköpings universitet/Tekniska fakulteten

    Author : Johan Andersson; Oscar Wyckman; [2015]
    Keywords : Modeling; Event based modeling; Two-stroke engines; Crankcase; Fuel dynamics; Wall wetting; Gas mixing;

    Abstract : For any crankcase scavenged two-stroke engine, the fuel dynamics is not easily predicted. This is due to the fact that the fuel has to pass the crankcase volume before it enters the combustion chamber. READ MORE

  6. 10. Building and Tree Parameterization in Partiallyoccluded 2.5D DSM Data

    University essay from Linköpings universitet/Institutionen för systemteknik

    Author : Johan Källström; [2015]
    Keywords : building parameterization; tree identification; Polyhedral Building Models; DSM;

    Abstract : Automatic 3D building reconstruction has been a hot research area; a task which has been done manually even up today. Automating the task of building reconstruction enables more applications where up to date information is of great importance. READ MORE