<div dir="ltr"><div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div class="gmail_quote"><p><font><span style="font-family:verdana,sans-serif">DATE: <b>Wednesday, Oct 15, 2014</b></span></font></p><font><span style="font-family:verdana,sans-serif">
</span></font><p><font><span style="font-family:verdana,sans-serif">TITLE: Drag and Lift Forces in Granular Media<br></span></font></p><font><span style="font-family:verdana,sans-serif">
</span></font><p><font><span style="font-family:verdana,sans-serif">TIME: 11 am<br></span></font></p><font><span style="font-family:verdana,sans-serif">
</span></font><p><font><span style="font-family:verdana,sans-serif">LOCATION: E 323L (3rd Floor Engineering)<br></span></font></p><font><span style="font-family:verdana,sans-serif">
</span></font><p><font><span style="font-family:verdana,sans-serif">SPEAKER: Dr. <span style="line-height:21px">Francois Guillard. University of Sydney <br></span></span></font></p><p><font><span style="font-family:verdana,sans-serif"><span style="line-height:21px">Abstract: </span></span></font></p><p><span style="line-height:115%">We study the forces experienced by
a cylinder moving perpendicular to gravity in a granular medium. The horizontal cylinder is rotated around the vertical axis and the forces in the
direction of the flow (drag) and perpendicular to the flow (lift) are measured experimentally.
On the first half rotation, before the cylinder travels again its own wake, a
strong lift force is measured, about 20 times the buoyancy of the cylinder. The
scaling laws of this force are studied experimentally and compared with the
prediction of recently proposed granular rheology in a continuous framework
using finite element method simulations. After several rotations and several
passings of the cylinder in its wake, an unexpected phenomenon arises.</span><font><span style="line-height:21px">
</span></font>
</p><font><span style="font-family:verdana,sans-serif">
</span></font><p><font face="arial, helvetica, sans-serif"><font><span style="font-family:verdana,sans-serif">HOST: Dr. Julio Valdes; Civil Engineering</span></font><span class=""></span></font></p><br></div></div></div></div></div>
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