Numerical Methods for Quantity Remapping in the Context of Indirect Arbitrary Lagrangian-Eulerian (ALE) Hydrodynamics
Typ dokumentu
habilitation thesishabilitační práce
Autor
Kuchařík, Milan
Metadata
Zobrazit celý záznamAbstrakt
For hydrodynamic simulations of fast
flows, the indirect Arbitrary Lagrangian Eulerian (ALE) methods represent one
of the few state of the art numerical approaches, which are efficient, accurate,
and robust enough for realistic calculations. In this approach, a Lagrangian
solver is used to advance the solution
along with the computational mesh in
time, while its robustness is achieved by
smoothing (regularization) of the mesh.
Remapping is one of the essential parts
of the ALE algorithm, conservatively interpolating the fluid quantities between
different computational meshes. This habilitation thesis summarizes the contribution of the author in the field of remapping methods. After a brief description
of the ALE algorithm, it focuses on the
description of the remapping approaches
and emphasizes the input of the author
in the form of his commented articles.
It mainly includes his work related to a
combination of intersection- and sweptbased remapping approaches, the remap
in multi-material problems, and the development of compatible algorithms for
the remap of all fluid quantities. Finally,
several applications are presented, especially from the field of hydrodynamic laserplasma simulations.
Kolekce
K tomuto záznamu jsou přiřazeny následující licenční soubory: