Simulation of spray dispersal and deposition from a forestry airblast sprayer - Part I: Air jet model

Citation
Mm. Sidahmed et Rb. Brown, Simulation of spray dispersal and deposition from a forestry airblast sprayer - Part I: Air jet model, T ASAE, 44(1), 2001, pp. 5-10
Citations number
10
Categorie Soggetti
Agriculture/Agronomy
Journal title
TRANSACTIONS OF THE ASAE
ISSN journal
00012351 → ACNP
Volume
44
Issue
1
Year of publication
2001
Pages
5 - 10
Database
ISI
SICI code
0001-2351(200101/02)44:1<5:SOSDAD>2.0.ZU;2-I
Abstract
A computational fluid dynamics code (FLUENT (TM)) was evaluated for use in modeling the airflow field from round jets, which are characteristic of for estry airblast sprayers. The simulation was compared to turbulent jet theor y and validated with data collected from a small centrifugal fan and a comm ercial forestry airblast sprayer Both two-dimensional (2D) and three-dimens ional (30) schemes were employed The measured axial and transverse velocity profiles agreed well with the 3D free jet models from FLUENT and turbulent jet theory However FLUENT was superior to turbulent jet theory in predicti ng asymmetric velocity profiles. The 20 approximations of a round jet using FLUENT and turbulent jet theory were not satisfactory