Essays about: "Adjoint method"

Showing result 1 - 5 of 21 essays containing the words Adjoint method.

  1. 1. Adjoint optimization of a liquid-cooled heat sink

    University essay from KTH/Teknisk mekanik

    Author : Roven Pinto; [2023]
    Keywords : Adjoint method; topology optimization; porosity; OpenFOAM;

    Abstract : Improving the design of flow channels in a liquid-cooled heat sink is critical for boosting the capabilities of electronic components as well as reducing energy usage by the pump. This work explores the use of topology optimization to minimize the pressure difference across a heat sink and consequently, the energy used to supply the liquid. READ MORE

  3. 2. Aerodynamic Concept Evaluation of Formula Student Side Structure

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Gabriel Ågren; [2023]
    Keywords : Formula Student; KTH Formula Student; race car aerodynamics; CFD; Multi-element wing;

    Abstract : Formula Student is a global engineering competition where university students collaborate to design, construct, and race formula-style cars. Aerodynamics is one aspect in the vehicle design that can improve on-track performance by increasing cornering and straight-line speed. READ MORE

  4. 3. Optimization-Based Geometry Correction Of Blood Flow CFD Simulations Using 4D-Flow Data

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Fritiof Hegardt; [2022]
    Keywords : Technology and Engineering;

    Abstract : 4D-flow is a powerful tool capable of capturing 3-dimensional, time-resolved flow measurements of blood flow in the body. Their current use is limited by resolution and scan times. A proposed solution is to use Simulation Based Imaging (SBI). READ MORE

  5. 4. Approximating Quasistationary Distributions Using Deep Learning

    University essay from KTH/Matematisk statistik

    Author : Björn Wehlin; [2022]
    Keywords : Applied Mathematics; Deep Learning; Probability Theory; Stochastic Processes; Ito Diffusions; Quasistationary Distributions; Tillämpad matematik; djupinlärning; sannolikhetsteori; stokastiska processer; Ito-diffusioner; kvasistationära fördelningar;

    Abstract : We study a class of It\={o} diffusion processes on domains with smooth boundary, at which the process is killed. Such a process, when conditioned on non-extinction, gives rise to a stationary state known as a \emph{quasistationary distribution} (QSD). READ MORE

  6. 5. Computationally Efficient Methods in Topology Optimization

    University essay from Lunds universitet/Hållfasthetslära; Lunds universitet/Institutionen för byggvetenskaper

    Author : Vilmer Dahlberg; [2022]
    Keywords : Topology Optimization; Eigenfrequency; Eigenmode; Reduced Order Model; Sensitivity Analysis; Deflation; Technology and Engineering;

    Abstract : In topology optimization, iterative, gradient-based methods are used to find the material distribution of structures which maximizes some objective function, typically the structures' stiffness, or in some cases the fundamental frequency. Finite element analysis is used to compute the structural response in each iteration, leading to large systems of equations. READ MORE