Particles in flows
Localized air delivery system as a protection tool

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G1791 V1 Article

Particles in flows
Localized air delivery system as a protection tool

Authors : Johan CARLIER, Lionel FIABANE, Dominique HEITZ

Publication date: October 10, 2018 | Lire en français

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3. Particles in flows

3.1 Definition and characteristics

Particles can be defined as small inclusions suspended in a fluid. Particles can be of various natures and origins [G 1 710] : inert (such as dust) or living (bacteria or molds), but also solid or liquid (in the case of aerosols in particular), dry or sticky, or of mechanical, chemical, thermal or biological origin.

The great heterogeneity of particles, and the modelling difficulties that may be associated with it, can be circumvented by assuming, from a purely physical point of view, that the phase of the particles (solid or liquid) is different from that of the vector carrying them, i.e. air. As a result,...

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