Name
Abstract | ||
|---|---|---|
This work is devoted to the development of a penalization method for the simulation of bubbly flows. Spherical bubbles are considered as moving penalized obstacles interacting with the fluid and a numerical method for ensuring the shear free condition at the liquid–bubble interface is proposed. Three test-cases (curved channel, inclined channel and 3D translating bubble) are used to validate the accuracy of the discretization ensuring the slip condition at the interface. Numerical simulations of a rising bubble in a quiescent liquid are performed for moderate Reynolds numbers. Considering bubble terminal velocities, initial accelerations and wake decay, the effect of the penalization viscosity used to ensure a uniform velocity in the penalized object is discussed. Finally, simulations of bubble swarms have been carried out in a fully periodic box with a large range of void fractions from 1% to 15%. The statistics provided by the simulations characterizing the bubble-induced agitation are found in remarkable agreement with the experiments. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1016/j.jcp.2018.07.042 | Journal of Computational Physics |
Keywords | Field | DocType |
Bubbly flows,Penalization method,Shear free condition,Bubble induced agitation | Discretization,Wake,Reynolds number,Shear (sheet metal),Mathematical analysis,Slip (materials science),Viscosity,Numerical analysis,Mathematics,Bubble | Journal |
Volume | ISSN | Citations |
374 | 0021-9991 | 0 |
PageRank | References | Authors |
0.34 | 6 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Antoine Morente | 1 | 0 | 0.34 |
| Jérôme Laviéville | 2 | 0 | 0.34 |
| Dominique Legendre | 3 | 17 | 3.14 |