| Titre : |
High-Order Numerical Methods for Shock-Bubble Interaction Computations |
| Titre original : |
Méthodes numériques d’ordre élevé pour la simulation d’interactions choc-interface |
| Type de document : |
thèse |
| Auteurs : |
Ksenia KOZHANOVA, Auteur ; Éric GONCALVES DA SILVA, Directeur de thèse ; Yannick HOARAU, Directeur de thèse ; Institut PPRIME UPR CNRS 3346 - FTC, Commanditaire ; Philippe HELLUY, Rapporteur ; Alistair REVELL, Rapporteur ; Christian TENAUD, Rapporteur ; Ashwin CHINNAYYA, Examinateur ; Marica PELANTI, Examinateur |
| Année de publication : |
2022 |
| Importance : |
118 p. |
| Note générale : |
NNT 2022ESMA0001
Remerciements
Résumé étendu
Contents
Appendices
References
Abstract
Keywords
|
| Catégories : |
Analyse numérique
Bulles:Dynamique
Écoulement diphasique
Equations, Systèmes d':Solutions numériques
Ondes de choc
Simulation, Méthodes de
Tubes à choc
|
| Résumé : |
INTRODUCTION AND BACKGROUND
The context of a shock-induced bubble collapse
Basic numerical methods
High-order numerical methods
Stretched mesh and numerical methods
Objectives and outline of the thesis
MATHEMATICAL MODEL AND BASIC DISCRETIZATION
Mathematical model
Basic discretization
Inlet and outlet boundary conditions
Synthesis
HIGH-ORDER NUMERICAL METHODS
High-order numerical methods overview
Piecewise parabolic method
Monotonicity preserving method
Weighted essentially non-oscillatory method
Synthesis
NUMERICAL VALIDATION
Methodology
1D shock-tube problem
1D Expansion tube with initial velocity |u0|=2 m/s
1D Expansion tube with initial velocity |u0|=100 m/s
Synthesis
2D air-helium shock-bubble interaction
Conclusion
2D SHOCK-INDUCED BUBBLE COLLAPSE
Bubble collapse in a free-field
Bubble collapse near a wall
Synthesis
MESH STRETCHING
Non-uniform mesh overview
Evaluation of distribution functions
Construction of one-dimensional stretching functions
WENO formulation for non-uniform mesh
2D COMPUTATIONS ON NON-UNIFORM MESH
Air-helium shock-bubble interaction
Bubble collapse in a free-field
Bubble collapse near a wall
Synthesis
3D COMPUTATIONS ON NON-UNIFORM MESH
3D SCB solver
Bubble collapse near a wall, Psh = 1200 bar
Bubble collapse near a wall, Psh = 353 bar
Synthesis
GENERAL CONCLUSION AND PERSPECTIVES
General conclusion
Perspectives |
| En ligne : |
https://tel.archives-ouvertes.fr/tel-03666688 |
Faire une suggestion Affiner la recherche6th Symposium on Hybrid RANS-LES Methods, Strasbourg, France, 26-28 September 2016. Progress in Hybrid RANS-LES Modelling / Yannick HOARAU
