Sökning: "Adjoint"

Visar resultat 16 - 20 av 45 uppsatser innehållade ordet Adjoint.

  1. 16. On the Identification of Nonlinear Optima in Spatially Developing Boundary Layer Flow

    Master-uppsats, KTH/Strömningsmekanik och Teknisk Akustik

    Författare :Emanuel Taschner; [2021]
    Nyckelord :transition to turbulence; nonlinear stability analysis; boundary layer flow; övergång till turbulens; icke-linjär stabilitetsanalys; gränsskiktsflöden;

    Sammanfattning : The present thesis studies transition to turbulence in a spatially developing bound-ary layer for subcritical Reynolds numbers. A fully nonlinear iterative direct-adjoint optimisation technique is employed to identify finite amplitude perturbations triggering transition in an energy efficient way. LÄS MER

  3. 17. A Primer to Categorical Symmetries and Their Application to QCD in Two Dimensions

    Master-uppsats, Uppsala universitet/Teoretisk fysik

    Författare :Rikard Olofsson; [2021]
    Nyckelord :category theory; fusion category; topological defect lines; rational conformal field theory; Wess Zumino Witten-model; QCD;

    Sammanfattning : We introduce the formalism of categorical symmetries, and examine how these appear in quantum field theories. We discuss rational conformal field theories and their Verlinde lines, with the critical Ising model as an example. We introduce Wess Zumino Witten models and affine Lie algebras. An algorithm for the fusion rules is presented. LÄS MER

  4. 18. Parametric Adjoint Optimization of a Twisted Rudder

    Master-uppsats, KTH/Marina system

    Författare :Andreas Hörberg; [2020]
    Nyckelord :Maritime; CFD; Optimization; Adjoint method; Twisted rudder; Sjofart; CFD; Optimering; Adjointmetoden; Tvistat roder;

    Sammanfattning : Optimization methods are commonly used to develop new products and are also an importantstep in more incremental design improvements. In the maritime industry, these methodsare often used to create more ecient vessels and to ful ll the environmental requirementsimposed by the IMO. In recent years, the adjoint method have been used more frequently. LÄS MER

  5. 19. Energy optimization tool for mild hybrid vehicles with thermal constraints

    Master-uppsats, KTH/Fordonsdynamik

    Författare :Chitranjan Singh; Tamas Tamilinas; [2020]
    Nyckelord :Control Systems; Mild Hybrids; Energy Management System; Kinetic Energy Regenerative Systems; Equivalent Consumption Minimization Strategy; Hybrid Powertrain Controls; Kontrollsystem; Milda hybrider; energihanteringssystem; regenererande system för kinetisk energi; Ekvivalent konsumptions-minimeringsstrategi; hybridstyrningskontroll;

    Sammanfattning : The current global scenario is such where impact on the environment is becoming a rising concern. Global automotive manufacturers have focused more towards hybrid and electric vehicles as both more aware customers and governmental legislation have begun demanding higher emission standards. LÄS MER

  7. 20. Gleasons sats

    Kandidat-uppsats, Göteborgs universitet/Institutionen för matematiska vetenskaper

    Författare :David Lidell; Therese Karmstrand; Lorents Landgren; Johan Ulander; [2019-06-26]
    Nyckelord :;

    Sammanfattning : This paper aims to present Gleason’s theorem and a full proof, by the most elementary methods of analysis possible. Gleason’s theorem is an important theorem in the mathematical foundations of quantum mechanics. It characterizes measures on closed subspaces of separable Hilbert spaces of dimension at least 3. LÄS MER