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Fluid-kinetic modelling for respiratory aerosols with variable size and temperature∗
- Source :
- ESAIM: Proceedings and Surveys, Vol 67, Pp 100-119 (2020)
- Publication Year :
- 2020
- Publisher :
- EDP Sciences, 2020.
-
Abstract
- In this paper, we propose a coupled fluid-kinetic model taking into account the radius growth of aerosol particles due to humidity in the respiratory system. We aim to numerically investigate the impact of hygroscopic effects on the particle behaviour. The air flow is described by the incompressible Navier-Stokes equations, and the aerosol by a Vlasov-type equation involving the air humidity and temperature, both quantities satisfying a convection-diffusion equation with a source term. Conservations properties are checked and an explicit time-marching scheme is proposed. Twodimensional numerical simulations in a branched structure show the influence of the particle size variations on the aerosol dynamics.
- Subjects :
- Applied mathematics. Quantitative methods
T57-57.97
Mathematics
QA1-939
Subjects
Details
- Language :
- English
- ISSN :
- 22673059
- Volume :
- 67
- Database :
- Directory of Open Access Journals
- Journal :
- ESAIM: Proceedings and Surveys
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.f6e356bfa6c5469cbfe4d672d840bea9
- Document Type :
- article
- Full Text :
- https://doi.org/10.1051/proc/202067007