Search for dissertations about: "gravity equation"

Showing result 6 - 10 of 34 swedish dissertations containing the words gravity equation.

  2. 6. Unravelling Consistent Spin-2 Interactions

    Author : Mikael von Strauss; Sayed Fawad Hassan; Mikhail Volkov; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Modified Gravity; Massive Spin-2; Spin-2 Interactions; teoretisk fysik; Theoretical Physics;

    Abstract : Recently, a unique formulation of a classically consistent theory of massive spin-2 fields has emerged. In this thesis I address a few of the primary questions that arise once such a theory is available. READ MORE

  4. 7. Steady waves in local and nonlocal models for water waves

    Author : Tien Truong; Matematik (naturvetenskapliga fakulteten); []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; The steady Euler equations; the Whitham equation; solitary waves; highest waves; periodic waves; transverse dynamics; The steady Euler equations; the Whitham equation; solitary waves; highest waves; periodic waves; transverse dynamics;

    Abstract : We study the steady Euler equations for inviscid, incompressible, and irrotational water waves of constant density. The thesis consists of three papers. The first paper approaches the Euler equations through a famous nonlocal model equation for gravity waves, namely the Whitham equation. READ MORE

  5. 8. Spectral/hp Discontinuous Galerkin Methods for Computational Hydraulics

    Author : Claes Eskilsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spectral hp elements; surface gravity waves; Boussinesq-type equations; shallow water equations; discontinuous Galerkin method;

    Abstract : We present the concept of spectral/hp element methods, i.e. finite element methods of arbitrarily (high) polynomial order, and apply the methods to computational hydraulics. READ MORE

  6. 9. Eulerian Numerical Study of the Sedimentation of Fibre Suspensions

    Author : Feng Zhang; Anders Dahlkild; Fredrik Lundell; Staffan Lundström; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fokker-Planck equation; particle fluid flow; suspension; instability;

    Abstract :  Sedimenting suspensions exist in a varity of natural phenomena and industrial applications. It is already observed in experiments that the dilute fibre suspensions experience a hydrodynamics instability under gravity at low Reynolds numbers. Initially well-mixed suspensions become inhomogeneous and anisotropic due to this instability. READ MORE

  7. 10. Gravitational waves from primordial magnetic sources

    Author : Yutong He; Axel Brandenburg; David Weir; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This licentiate thesis gives an overview of modified gravity and primordial magnetic fields,bridged by gravitational waves (GWs) as a phenomenological probe of both sectors.First we derive the GW equation in a homogeneous and isotropic background from general relativity. READ MORE