Essays about: "boundary work"

Showing result 1 - 5 of 165 essays containing the words boundary work.

  1. 1. A new approach to simulating the draping of prepreg composites manufactured by hand layup

    University essay from KTH/Lättkonstruktioner

    Author : Vincent Maymard; [2017]
    Keywords : ;

    Abstract : Kinematic drape simulations, of applying woven reinforcements to complex geometries, have to date largely focused on characterising the ply shape and the deformations from fitting it to the surface of a mould; amongst other manufacturing management outputs. This is increasingly unsatisfactory: it does not allow for any prediction into the effect of geometry and changes on the layup; does not realistically simulate the draping process as achieved by operators; instruct on the process of how to manipulate a ply to achieve the deformations required, or; enable the information gathered to be exploited in simple useful formats. READ MORE

  2. 2. Aerodynamic performance of a wind-turbine rotor by means of OpenFOAM

    University essay from KTH/Mekanik

    Author : Evangelos Giannopoulos; [2017]
    Keywords : wind turbine; rotor; performance; CFD model; boundary layer; roughness;

    Abstract : In order for wind-farm operators to deal with challenges regarding their fleet management, it is useful for them to estimate their units’ performance for different conditions. To perform such estimations, Computational Fluid Dynamics (CFD) may be used. READ MORE

  3. 3. Turbulent flow control via nature inspired surface modifications

    University essay from KTH/Mekanik; 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

  4. 4. Predicting Flow Dynamics of an Entire Engine Cooling System Using 3D CFD

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik; Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Adam Johansson; Jonas Gunnarsson; [2017]
    Keywords : CFD; Engine cooling system; Volvo;

    Abstract : A combustion engine generates a lot of heat which need to be cooled to prevent damages to the engine and the surrounding parts. If the cooling system can not provide enough cooling to keep the engine in a well defined range of temperatures performance and durability will decrease and emissions increase. READ MORE

  5. 5. The Paradox of the Boundary Creature

    University essay from Handelshögskolan i Stockholm/Institutionen för marknadsföring och strategi

    Author : Jessica Backsell; [2017]
    Keywords : Conceptual boundaries; Law; Market formations; Performativity; Socio-technical agancement;

    Abstract : Within the burgeoning literature of how market representations is performing markets, recent research has suggested looking at how conceptual boundaries are affecting the market onto which they are drawn. One key aspect of this type of framing is the relation between market formations and the performative power of the law, of which relatively little has been written. READ MORE