Moments-based interface reconstruction, remap and advection
Journal Article
·
· Journal of Computational Physics
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Here, we present a new moment-of-fluid (MOF2) interface reconstruction method. It uses the zeroth, first, and second moments of the fragment of material inside a cell of the mesh to reconstruct a convex material polygon or a union of convex polygons that approximate the respective material fragment. The new method requires information about the material moments only for the cell under consideration. The MOF2 method allows to exactly reproduce several convex shapes: corners, filaments, and some concave shapes: cell-complements to corners and filaments. Interface reconstruction is formulated as a local (for each cell), non-linear, equality constrained optimization problem, which does not require additional communication and allows for an efficient parallel implementation. We present an extensive set of test problems, both for interface reconstruction on a single cell, and for reconstruction of a variety of shapes on a variety of meshes. We describe how to perform two-material advection using the MOF2 method and present the results for the classical advection tests. We also show the examples of material interface remapping needed in the framework of multi-material arbitrary Lagrangian-Eulerian methods, and give a brief description of a procedure that can be used to update the material moments on the Lagrangian stage of those methods.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); USDOE National Nuclear Security Administration (NNSA), Office of Defense Programs (DP)
- Grant/Contract Number:
- 89233218CNA000001
- OSTI ID:
- 2446675
- Alternate ID(s):
- OSTI ID: 2000144
- Report Number(s):
- LA-UR--22-32547
- Journal Information:
- Journal of Computational Physics, Journal Name: Journal of Computational Physics Vol. 479; ISSN 0021-9991
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Moments-based interface reconstruction, remap and advection
An adaptive moments-based interface reconstruction using intersection of the cell with one half-plane, two half-planes and a circle
Thirty years at LANL - case study [Slides]
Technical Report
·
Tue Aug 09 00:00:00 EDT 2022
·
OSTI ID:1881770
An adaptive moments-based interface reconstruction using intersection of the cell with one half-plane, two half-planes and a circle
Journal Article
·
Sat Sep 09 20:00:00 EDT 2023
· Journal of Computational Physics
·
OSTI ID:2005849
Thirty years at LANL - case study [Slides]
Technical Report
·
Tue Jan 23 23:00:00 EST 2024
·
OSTI ID:2282507