Premium
Numerical simulation of smoke clearing with nanoparticle aggregates
Author(s) -
Zhang N.,
Zheng Z. C.,
Maghirang R. G.
Publication year - 2007
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.2186
Subject(s) - collision , reduction (mathematics) , solver , mechanics , particle (ecology) , smoke , flow (mathematics) , computer simulation , particle size , particle number , simulation , computer science , materials science , physics , mathematics , mathematical optimization , engineering , chemical engineering , thermodynamics , meteorology , geometry , geology , oceanography , computer security , volume (thermodynamics)
Smoke reduction processes in an indoor room‐scale chamber are generated by injecting nanoparticle aggregates. A numerical model, with a flow solver implemented with a particle collision model, is used to simulate the smoke‐reduction effect. The collision model, developed particularly for simulating collisions among particles with significantly different sizes, enables real‐time simulations of three‐dimensional, two‐phase flow when flow/particle interactions need to be considered. The accuracy of the collision model is estimated by comparing with the exact solution from the Smoluchowski equation. The simulated smoke reduction results are compared with measured data with good agreement. Optimized particle size distributions are studied using the simulation. Copyright © 2007 John Wiley & Sons, Ltd.