Sökning: "ekvation matematik"

Visar resultat 1 - 5 av 44 uppsatser innehållade orden ekvation matematik.

  1. 1. Moderling Acoustic Transmission in Towed Array Sonars : Computations of the coupled acoustic and elastic wave equations

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Bill Claesson; [2023]
    Nyckelord :;

    Sammanfattning : This thesis presents a method of solving the Helmholtz equation coupled with the Navier-Cauchy equation over a cross section of a Towed Array Sonar (TAS) modeled as a simplified cylindrical shell. The purpose of solving these equations is to estimate the transfer function of the pressure between the outside boundary and a position inside the TAS. LÄS MER

  3. 2. Adjoint-based Formulation for Shape Optimization Problems in Computational Fluid Dynamics

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Anton Scotte; [2023]
    Nyckelord :;

    Sammanfattning : A continuous adjoint formulation for exterior optimization of Dirichlet data on the boundary for potential flow applications has been developed in this thesis. This has been performed by utilizing boundary integral methods for both the primal problem (Laplace’s equation) and for the corresponding adjoint equation (Poisson’s equation) on the unit disc. LÄS MER

  4. 3. Elevers svårigheter i problemlösning medekvationer : En kvalitativ studie av elevers lösningari att lösa problem med ekvation i årskurs åtta

    Uppsats för yrkesexamina på grundnivå, Örebro universitet/Institutionen för humaniora, utbildnings- och samhällsvetenskap

    Författare :Soulafa Ajmea; Rawaa Mokbel; [2023]
    Nyckelord :Problemlösning; ekvationer; svårigheter; algebra; matematik; årskurs 8.;

    Sammanfattning : Syftet med denna studie är att identifiera de svårigheter elever har och de misstag de gör när de individuellt löser ett ekvationsproblem i matematik. Totalt deltog åtta elever i årskurs åtta, samt åtta matematiklärare. Alla elever fick göra en uppgift, som handlade om att lösa en ekvation, sedan intervjuade vi eleverna. LÄS MER

  5. 4. Tug-of-War and the p-Laplace Equation : Exploring a Mathematical link between Game Theory and Nonlinear Elliptic PDE's

    Kandidat-uppsats, Umeå universitet/Institutionen för matematik och matematisk statistik

    Författare :Zackarias Chronéer; [2023]
    Nyckelord :p-Laplacian; tug-of-war;

    Sammanfattning : In this report the connection between p-harmonic functions and the tug-of-war game is presented and some applications are mentioned. Moreover, sufficient background information of solutions to the p-Laplace equation is given. And to finish, an example of the game is given with simulations. . LÄS MER

  7. 5. Computation of Acoustic Wave Propagation Under Water

    Master-uppsats, KTH/Matematik (Avd.)

    Författare :Frida Thörn; [2022]
    Nyckelord :Wave equation; Helmholtz equation; Waveholtz iteration; finite difference method; summation by parts; energy method; point source; curvilinear coordinates; vågekvationen; helmholtz ekvation; waveholtz iteration; finita differens methoden; energimetoden; punktkälla; kurvlinjära koordinater; kroklinjiga koordinater; SBP;

    Sammanfattning : In this thesis we look at acoustic wave propagation under water. We look in particular at waves generated by a point source and what happens with the propagation when we model the bottom as flat or as curvilinear. We assume the source to be working at a certain frequency and therefore we model this problem by solving the Helmholtz equation. LÄS MER