Point-source dispersion of quasi-neutrally-buoyant inertial particles

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Afonso, MM (Author) FCUP; Sílvio Gama (Author) FCUP

Journal

Title: European Physical Journal E

Vol. 42

ISSN: 1292-8941

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: P-00Q-5CG

DOI: 10.1140/epje/i2019-11771-5

Abstract (EN): .We analyze the evolution of the distribution, both in the phase space and in the physical space, of inertial particles released by a spatially-localized (punctual) source and advected by an incompressible flow. The difference in mass density between fluid and particles is assumed to be small, and represents the basic parameter for a regular perturbative expansion. By means of analytical techniques such as Hermitianization, we derive a chain of equations of the advection-diffusion-reaction type, easily solvable at least numerically. Our procedure provides results also for finite particle inertia, away from the over-damped limit of quasi-tracer dynamics.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8