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Triangulating Radiation: Radiative Transfer on Unstructured Grids
Jelle Ritzerveld, Vincent Icke, Erik-Jan Rijkhorst
We present a new numerical approach that is able to solve the multi-dimensional radiative transfer equations in all opacity regimes on a Lagrangian, unstructured network of charact…
Three-Dimensional Adaptive Mesh Refinement Simulations of Point-Symmetric Nebulae
Erik-Jan Rijkhorst, Vincent Icke, Garrelt Mellema
Previous analytical and numerical work shows that the generalized interacting stellar winds model can explain the observed bipolar shapes of planetary nebulae very well. However, m…
3D AMR Simulations of Point-Symmetric Nebulae
Erik-Jan Rijkhorst, Vincent Icke, Garrelt Mellema
At the end of their lives low mass stars such as our Sun lose most of their mass. The resulting planetary nebulae show a wide variety of shapes, from spherical to highly bipolar. A…
The effect of grain drift on the structure of (Post-) AGB winds
Yvonne Simis, Carsten Dominik, Vincent Icke
We have developed an implementation for the momentum transfer force in numerical two fluid hydrodynamics. This form of the frictional coupling between gas and grains is consistent…