Change search
ReferencesLink to record
Permanent link

Direct link
Multirelaxation-time lattice Boltzmann model for droplet heating and evaporation under forced convection
2015 (English)In: Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, ISSN 1539-3755, E-ISSN 1550-2376, Vol. 91, no 4, 043012Article in journal (Refereed) PublishedText
Abstract [en]

We investigate the evaporation of a droplet surrounded by superheated vapor with relative motion between phases. The evaporating droplet is a challenging process, as one must take into account the transport of mass, momentum, and heat. Here a lattice Boltzmann method is employed where phase change is controlled by a nonideal equation of state. First, numerical simulations are compared to the D-2 law for a vaporizing static droplet and good agreement is observed. Results are then presented for a droplet in a Lagrangian frame under a superheated vapor flow. Evaporation is described in terms of the temperature difference between liquid-vapor and the inertial forces. The internal liquid circulation driven by surface-shear stresses due to convection enhances the evaporation rate. Numerical simulations demonstrate that for higher Reynolds numbers, the dynamics of vaporization flux can be significantly affected, which may cause an oscillatory behavior on the droplet evaporation. The droplet-wake interaction and local mass flux are discussed in detail.

Place, publisher, year, edition, pages
2015. Vol. 91, no 4, 043012
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:sh:diva-30093DOI: 10.1103/PhysRevE.91.043012ISI: 000353209300004ScopusID: 2-s2.0-84929118718OAI: diva2:932384
Swedish Research Council, VR2010-3938]Swedish Research Council, VR2011-5355]Swedish National Infrastructure for Computing (SNIC)EU, FP7, Seventh Framework Programme, RI-312763]
Available from: 2015-08-07 Created: 2016-06-01 Last updated: 2016-06-01Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Do, Quang MinhAmberg, Gustav
In the same journal
Physical Review E. Statistical, Nonlinear, and Soft Matter Physics
Fluid Mechanics and Acoustics

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 33 hits
ReferencesLink to record
Permanent link

Direct link