Sökning: "Johan Hoffman"

Visar resultat 11 - 15 av 18 avhandlingar innehållade orden Johan Hoffman.

  1. 11. Dissertatio politica, de vitiis, quibus imperium civile impar, ex occasione C. Taciti libr. III. c. LIII. Quam, ex consensu ampliss. ordinis philosophici, in regia academia Upsaliensi, præside ... Gustavo Ant. Boudrie ... publ. eruditorum subjicit examini pro summis in philos. honoribus auctor Johannes Hoffman, alumn. reg. Gothlandus. In aud. Carol. maj. d. 28. Maji 1776

    Författare :Gustaf Anton Boudrie; Johan Hoffman; Gustaf Anton Boudrie; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  3. 12. High performance adaptive finite element methods for turbulent fluid flow

    Författare :Niclas Jansson; Johan Hoffman; Sverker Holmgren; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Numerical analysis; Numerisk analys;

    Sammanfattning : Understanding the mechanics of turbulent fluid flow is of key importance for industry and society as for example in aerodynamics and aero-acoustics. The massive computational cost for resolving all turbulent scales in a realistic problem makes direct numerical simulation of the underlying Navier-Stokes equations impossible. LÄS MER

  4. 13. Cut finite element methods on parametric multipatch surfaces

    Författare :Tobias Jonsson; Mats G. Larson; Karl Larsson; Johan Hoffman; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cut finite element method; Nitsche method; a priori error estimation; Mathematics; matematik;

    Sammanfattning : .... LÄS MER

  5. 14. Cut isogeometric methods on trimmed multipatch surfaces

    Författare :Tobias Jonsson; Mats G. Larson; Karl Larsson; Johan Hoffman; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cut finite element method; isogeometric analysis; Nitsche s method; a priori error estimation; parametric geometry; interface problem; surface CAD;

    Sammanfattning : Partial differential equations (PDE) on surfaces appear in a variety of applications, such as image processing, modeling of lubrication, fluid flows, diffusion, and transport of surfactants.  In some applications, surfaces are drawn and modeled by using CAD software, giving a very precise patchwise parametric description of the surface. LÄS MER

  7. 15. Finite Element simulations: computations and applications to aerodynamics and biomedicine

    Författare :Massimiliano Leoni; Johan Hoffman; David Kamensky; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; radiofrequency ablation; finite elements; numerical simulations; partial differential equations; biomedical applications; HPC; Computer Science; Datalogi;

    Sammanfattning :   Partial Differential Equations describe a large number of phenomena of practical interest and their solution usually requires running huge simulations on supercomputing clusters.  Especially when dealing with turbulent flows, the cost of such simulations, if approached naively, makes them unfeasible, requiring modelling intervention. LÄS MER