Modeling Acoustic Cavitation Using a Pressure-Based Algorithm for Polytropic Fluids
| Autor: | Denner, Fabian, Evrard, Fabien, Wachem, Berend van |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Fluids, Vol 5, Iss 69, p 69 (2020) Fluids Volume 5 Issue 2 |
| ISSN: | 2311-5521 |
| Popis: | A fully coupled pressure-based algorithm and finite-volume framework for the simulation of the acoustic cavitation of bubbles in polytropic gas&ndash liquid systems is proposed. The algorithm is based on a conservative finite-volume discretization with collocated variable arrangement, in which the discretized governing equations are solved in a single linear system of equations for pressure and velocity. Density is described by the polytropic Noble&ndash Abel stiffened-gas model and the interface between the interacting bulk phases is captured by a state-of-the-art algebraic Volume-of-Fluid (VOF) method. The new numerical algorithm is validated using representative test-cases of the interaction of acoustic waves with the gas&ndash liquid interface as well as pressure-driven bubble dynamics in infinite and confined domains, showing excellent agreement of the results obtained with the proposed algorithm compared to linear acoustic theory, the Gilmore model and high-fidelity experiments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|