Controlled coalescence with local front reconstruction method

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The physics of droplet collisions involves a wide range of length scales. This poses a difficulty to accurately simulate such flows with traditional fixed grid methods due to their inability to resolve all scales with affordable number of computational grid cells. A solution is to couple a fixed grid method with simplified sub grid models that account for microscale effects. In this paper, we incorporate such framework in the Local Front Reconstruction Method (Shin et al., 2011). To validate the new method, simulations of (near) head on collision of two equal tetradecane droplets are carried out at different Weber numbers corresponding to different collision regimes. The results show a better agreement with experimental data compared to other fixed grid methods like Front Tracking (Pan et al., 2008) and Coupled Level Set and Volume of Fluid (CLSVOF) (Kwakkel et al., 2013), especially at high impact velocities.
Originele taal-2Engels
TitelProgress in Applied CFD – CFD2017
SubtitelProceedings of the 12th International Conference on Computational Fluid Dynamics, 30 May - 1 June 2017, Trondheim, Norway
RedacteurenJ.E. Olsen, S.T. Johansen
Plaats van productieOslo
UitgeverijSINTEF Academic Press
Pagina's373-380
Aantal pagina's8
ISBN van elektronische versie978-82-536-1544-8
StatusGepubliceerd - 12 jun 2017
Evenement12th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries (CFD 2017)
- Scandic Nidelven Hotel, Trondheim, Noorwegen
Duur: 30 mei 20171 jun 2017
Congresnummer: 12
http://www.sintef.no/projectweb/cfd-2017/

Congres

Congres12th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries (CFD 2017)
Verkorte titelCFD 2017
LandNoorwegen
StadTrondheim
Periode30/05/171/06/17
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Rajkotwala, A. H., Mirsandi, H., Peters, E. A. J. F., Baltussen, M. W., van der Geld, C. W. M., Kuerten, J. G. M., & Kuipers, J. A. M. (2017). Controlled coalescence with local front reconstruction method. In J. E. Olsen, & S. T. Johansen (editors), Progress in Applied CFD – CFD2017: Proceedings of the 12th International Conference on Computational Fluid Dynamics, 30 May - 1 June 2017, Trondheim, Norway (blz. 373-380). Oslo: SINTEF Academic Press.