Axisymmetric two‐phase flow simulations on space‐time meshes

Guiding-center simulations on curvilinear meshes

The purpose of this work is to design simulation tools for magnetised plasmas in the ITER project framework. The specific issue we consider is the simulation of turbulent transport in the core of a Tokamak plasma, for which a 5D gyrokinetic model is generally used, where the fast gyromotion of the particles in the strong magnetic field is averaged in order to remove the associated fast time-sca...

On the Axisymmetric Surface Diffusion Flow

Axisymmetric Suction Flow 3

Compressible Fluid-flow Ale Formulation on Changing Topology Meshes for Aeroelastic Simulations

The analysis of unsteady fluid flows on moving domains is a very complex task, that may be often tackled using domain remeshing techniques. In the present paper a novel mesh movement strategy is presented. It is based on the blending of simple local edge-swapping with mesh deformation by means of the elastic analogy. To deal with mesh topology changes an extension of the classical Arbitary Lagr...

Cumulative Dragging - An Intrinsic Characteristic of Stationary Axisymmetric Spacetime

The Cumulative Drag Index defined recently by Prasanna [1] has been generalised to include the centrifugal acceleration. We have studied the behaviour of the drag index for the Kerr metric and the Neugebauer-Meinel metric representing a self-gravitating rotating disk and their Newtonian approximations. The similarity of the behaviour of the index for a given set of parameters both in the full a...