Abstract
A method to predict sub-filter shear-induced velocities on a liquid-gas phase interface for use in a dual scale LES model is presented. The method reconstructs the sub-filter velocity field in the vicinity of the interface by introducing a vortex sheet at the interface. The vortex sheet is transported by an unsplit geometric volume and surface area advection scheme with a Piecewise Linear Interface Construction (PLIC) representation of the material interface. At each step and desired location the shear-induced velocities can be calculated by integrating the vortex sheet and other relevant quantities over the liquid-gas surface with the sub-grid velocity reconstruction limited to a small number of cells near the phase interface. The vortex sheet method is tested and compared against prior literature.
| Original language | English (US) |
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| State | Published - Aug 31 2021 |
| Externally published | Yes |
| Event | 15th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2021 - Edinburgh, United Kingdom Duration: Aug 29 2021 → Sep 2 2021 |
Conference
| Conference | 15th Triennial International Conference on Liquid Atomization and Spray Systems, ICLASS 2021 |
|---|---|
| Country/Territory | United Kingdom |
| City | Edinburgh |
| Period | 8/29/21 → 9/2/21 |
Keywords
- Dual Scale
- LES
- Sub-Filter Model
- Vortex Sheet Method
ASJC Scopus subject areas
- Surfaces, Coatings and Films