The dispersion produced by a jet injecting microparticles in a cross stream is controlled by the interaction between dispersed species and large‐scale time‐dependent flow structures populating the transverse jet. These structures span over a wide range of spatial and temporal scales and are not equally effective in advecting and dispersing species. In many environmental and industrial applications, the species advected by the jet stream are expected to undergo rapid and homogeneous dilution away from the injection point. Preferential accumulation of particles into specific flow regions may have consequences on the overall industrial process. For instance, nonuniform particle distribution can severely downgrade the efficiency of postcombustion devices. In this work, we address the problem of identifying which of the flow structures in a jet in crossflow controls dispersion mechanisms of inertial particles, focusing specifically on the issue of their preferential distribution. The flow field produced by the transverse jet is calculated using a finite‐volume solver of Navier–Stokes equations and the dispersion of particles is computed using a Lagrangian approach. We investigate the behavior of particles of different sizes, examining 5 orders of magnitude of their inertial parameter—the particle timescale. The analysis of dispersion shows that particle distribution is not uniform and is dominated by specific flow structures. Examining the distribution of the different particles in connection with particle timescale and flow structure evolution, it is found that shear layer vortices initially control dispersion and segregation processes, whereas counterrotating vortices entrain and trap particles in the lee side of the jet. © 2004 American Institute of Chemical Engineers AIChE J, 51: 28–43, 2005
Aiche Journal – Wiley
Published: Jan 1, 2005
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera