Sökning: "laminar"

Visar resultat 16 - 20 av 91 uppsatser innehållade ordet laminar.

  1. 16. Optimization of sprue design for advanced investment casting through FEA analysis

    M1-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

    Författare :Kanthee Prathan; [2020]
    Nyckelord :Design; FEM; FEA; Investment casting; Sprue design;

    Sammanfattning : Investment casting is a complex manufacturing method with many challenges that must be solved before components of the right quality can be produced. TPC is a company that utilizes investment casting to produce a variety of products, lately the company has higher ambition in wanting to cast higher technical demanding component like heat resistant gas turbine blades. LÄS MER

  3. 17. Master Thesis - Towards a Virtual Climate Chamber : A numerical study using CFD software

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Yuvarajendra Anjaneya Reddy; [2020]
    Nyckelord :CFD; Ansys FLUENT; Power Spectral Density; Turbulence quanitification; Digital Twin;

    Sammanfattning : For each generation of electronic equipment there is a trend towards higher power den-sities. Increased heat generation is an undesired consequence that the thermal design unit in a company must handle. The goal of thermal design engineer/unit is to utilizethe same volume to more efficiently transfer more heat from the equipment. LÄS MER

  4. 18. Two-dimensional roughness and Tollmien-Schlichting waves: a study on transition

    Master-uppsats, KTH/Strömningsmekanik och Teknisk Akustik

    Författare :Derek Micheletto; [2020]
    Nyckelord :;

    Sammanfattning : Two-dimensional (2D) roughnesses induce premature transition to turbulence in laminar boundary layers by amplifying the disturbances in the flow and promoting the development of non-linearities. The present thesis aims at furthering our understanding of this phenomenon's underlying mechanisms and elucidating the effects of the different geometrical parameters of the roughness' cross section. LÄS MER

  5. 19. Fundamental combustion properties of alternative fuels for energy transition

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Förbränningsfysik

    Författare :Yijing Mao; [2020]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : Validation and improvement of chemical kinetic modelling require accurate experimental data. The over goal of the present work is to obtain accurate data by using techniques that have been previously implemented in common flames, e.g. LÄS MER

  7. 20. Analysis of Cooling System and Its Influence on Magnetic Flux Density in a Motor

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Ronaldo Gustav Pangihutan Hasibuan; [2020]
    Nyckelord :Generator; Motor; Permanent Machine;

    Sammanfattning : After Michael Faraday invented the magnetism theory in 1821, the application of the permanent magnet machine was rapidly developed. The permanent magnet synchronous machine is one of the popular applications of electromagnetic theory, which is implemented in most electric vehicles nowadays. LÄS MER