Artículos de revistas
Flow visualization and field line advection in computational fluid dynamics: Application to magnetic fields and turbulent flows
Fecha
2008-12Registro en:
Mininni, Pablo Daniel; Lee, Ed; Norton, Alan; Clyne, John; Flow visualization and field line advection in computational fluid dynamics: Application to magnetic fields and turbulent flows; IOP Publishing; New Journal of Physics; 10; 12-2008; 1-23
1367-2630
CONICET Digital
CONICET
Autor
Mininni, Pablo Daniel
Lee, Ed
Norton, Alan
Clyne, John
Resumen
Accurately interpreting three dimensional (3D) vector quantities output as solutions to high-resolution computational fluid dynamics (CFD) simulations can be an arduous, time-consuming task. Scientific visualization of these fields can be a powerful aid in their understanding. However, numerous pitfalls present themselves ranging from computational performance to the challenge of generating insightful visual representations of the data. In this paper, we briefly survey current practices for visualizing 3D vector fields, placing particular emphasis on those data arising from CFD simulations of turbulence. We describe the capabilities of a vector field visualization system that we have implemented as part of an open source visual data analysis environment. We also describe a novel algorithm we have developed for illustrating the advection of one vector field by a second flow field. We demonstrate these techniques in the exploration of two sets of runs. The first comprises an ideal and a resistive magnetohydrodynamic (MHD) simulation. This set is used to test the validity of the advection scheme. The second corresponds to a simulation of MHD turbulence. We show the formation of structures in the flows, the evolution of magnetic field lines, and how field line advection can be used effectively to track structures therein. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.