Levich Institute Seminar Announcement, 11/19/2013
Tuesday, 11/19/2013
2:00 PM
Steinman Hall, Room #312
(Chemical Engineering Conference Room)

Hamed Haddadi
City College of CUNY
Levich Institute

"The Role of Inertia in Particle-Laden Flows"

ABSTRACT


Inertial flow of suspensions arises in applications from coating to flow of blood. In the presence of inertia the particle motions and dynamics of particle-particle interactions change drastically. New trajectory types emerge and the inertia force plays role in particle interactions. For inertial flow of neutrally buoyant particles, which is the subject of the presentation, the level of inertia carried by fluid and solid phases are the same, consequently simplifications made for Stokes flow behavior of the solvent for the case of heavy particle suspensions is inefficient.

In this presentation, I explain the major differences in the dynamics of the particle motion and many-body interactions in inertial suspensions with particular emphasize on the topology of the pair trajectories and the suspension microstructure. The stress system of the suspension and the mechanisms of the momentum transfer are another set of information which will be detailed. Finally, I will present motion of particles on closed streamlines as an example of inertial flow observed in microfluidic devices.

BRIEF ACADEMIC/EMPLOYMENT HISTORY

Mr. Haddadi is currently a Ph.D. student in Chemical Engineering under the supervision of Professor Jeffrey Morris



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