Abstract
In this work, we devise fast solvers and adaptive mesh generation procedures based on the Monge–Ampère Equation using B-Splines Finite Elements, within the Isogeometric Analysis framework. Our approach ensures that the constructed mapping is a bijection, which is a major challenge in Isogeometric Analysis. First, we use standard B-Splines Finite Elements to solve the Monge–Ampère Equation. An analysis of this approach shows serious limitations when dealing with high variations near the boundary. In order to solve this problem, a new formulation is derived using compatible B-Splines discretization based on a discrete DeRham sequence. A new fast solver is devised in this case using the Fast Diagonalization method. Different tests are provided and show the performance of our new approach.
Original language | English |
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Article number | 116570 |
Journal | Computer Methods in Applied Mechanics and Engineering |
Volume | 418 |
DOIs | |
State | Published - 5 Jan 2024 |
Externally published | Yes |
Keywords
- B-spline discretization
- Isogeometric Analysis
- Mesh generation
- Multi level
- Optimal transport
- r-refinement