Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup
A hybrid VOF–Lagrangian method for simulating the aerodynamic breakup of liquid droplets induced by a traveling shock wave is proposed and tested. The droplet deformation and fragmentation, together with the subsequent mist development, are predicted by using a fully three-dimensional computational...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-08-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/12/16/8302 |
| _version_ | 1827618252757401600 |
|---|---|
| author | Viola Rossano Giuliano De Stefano |
| author_facet | Viola Rossano Giuliano De Stefano |
| author_sort | Viola Rossano |
| collection | DOAJ |
| description | A hybrid VOF–Lagrangian method for simulating the aerodynamic breakup of liquid droplets induced by a traveling shock wave is proposed and tested. The droplet deformation and fragmentation, together with the subsequent mist development, are predicted by using a fully three-dimensional computational fluid dynamics model following the unsteady Reynolds-averaged Navier–Stokes approach. The main characteristics of the aerobreakup process under the shear-induced entrainment regime are effectively reproduced by employing the scale-adaptive simulation method for unsteady turbulent flows. The hybrid two-phase method combines the volume-of-fluid technique for tracking the transient gas–liquid interface on the finite volume grid and the discrete phase model for following the dynamics of the smallest liquid fragments. The proposed computational approach for fluids engineering applications is demonstrated by making a comparison with reference experiments and high-fidelity numerical simulations, achieving acceptably accurate results without being computationally expensive. |
| first_indexed | 2024-03-09T10:02:04Z |
| format | Article |
| id | doaj.art-f9a843fc88114cadb06f6bfe2e9180f2 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T10:02:04Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-f9a843fc88114cadb06f6bfe2e9180f22023-12-01T23:22:29ZengMDPI AGApplied Sciences2076-34172022-08-011216830210.3390/app12168302Hybrid VOF–Lagrangian CFD Modeling of Droplet AerobreakupViola Rossano0Giuliano De Stefano1Engineering Department, University of Campania Luigi Vanvitelli, 81031 Aversa, ItalyEngineering Department, University of Campania Luigi Vanvitelli, 81031 Aversa, ItalyA hybrid VOF–Lagrangian method for simulating the aerodynamic breakup of liquid droplets induced by a traveling shock wave is proposed and tested. The droplet deformation and fragmentation, together with the subsequent mist development, are predicted by using a fully three-dimensional computational fluid dynamics model following the unsteady Reynolds-averaged Navier–Stokes approach. The main characteristics of the aerobreakup process under the shear-induced entrainment regime are effectively reproduced by employing the scale-adaptive simulation method for unsteady turbulent flows. The hybrid two-phase method combines the volume-of-fluid technique for tracking the transient gas–liquid interface on the finite volume grid and the discrete phase model for following the dynamics of the smallest liquid fragments. The proposed computational approach for fluids engineering applications is demonstrated by making a comparison with reference experiments and high-fidelity numerical simulations, achieving acceptably accurate results without being computationally expensive.https://www.mdpi.com/2076-3417/12/16/8302computational fluid dynamicsdiscrete phase modeldroplet aerobreakupfluids engineeringscale-adaptive simulationtwo-phase flow |
| spellingShingle | Viola Rossano Giuliano De Stefano Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup Applied Sciences computational fluid dynamics discrete phase model droplet aerobreakup fluids engineering scale-adaptive simulation two-phase flow |
| title | Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup |
| title_full | Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup |
| title_fullStr | Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup |
| title_full_unstemmed | Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup |
| title_short | Hybrid VOF–Lagrangian CFD Modeling of Droplet Aerobreakup |
| title_sort | hybrid vof lagrangian cfd modeling of droplet aerobreakup |
| topic | computational fluid dynamics discrete phase model droplet aerobreakup fluids engineering scale-adaptive simulation two-phase flow |
| url | https://www.mdpi.com/2076-3417/12/16/8302 |
| work_keys_str_mv | AT violarossano hybridvoflagrangiancfdmodelingofdropletaerobreakup AT giulianodestefano hybridvoflagrangiancfdmodelingofdropletaerobreakup |