<div dir="ltr"><div class="gmail_quote"><br><br><div lang="EN-US" link="#0563C1" vlink="#954F72"><div class="m_5574142148855973774WordSection1"><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Verdana",sans-serif;color:black"><img width="1017" height="115" style="width:10.5937in;height:1.1979in" id="m_5574142148855973774Picture_x0020_1" src="cid:image001.jpg@01D3A3DE.7CF4C6C0" alt="cid:image001.jpg@01D3A3DE.7CF4C6C0"></span><span style="font-family:"Verdana",sans-serif;color:black"><u></u><u></u></span></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Verdana",sans-serif;color:black">DATE:</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span><span style="font-size:13.5pt;font-family:"Verdana",sans-serif;color:black"> </span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">Friday, March 9, 2018</span></b><u></u><u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span><u></u><u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Verdana",sans-serif;color:black">TITLE:</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black">  </span><b><span style="font-size:20.0pt;font-family:"Verdana",sans-serif">Shocked Particle-Laden Flows: Multi-scale<br></span></b><b><span style="font-size:20.0pt;font-family:"Verdana",sans-serif">Simulation and Uncertainty Quantification<u></u><u></u></span></b></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Verdana",sans-serif;color:black"> </span><u></u><u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Verdana",sans-serif;color:black">TIME:</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span><span style="font-size:13.5pt;font-family:"Verdana",sans-serif;color:black"> </span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">3<span style="color:black">:30PM</span></span></b><u></u><u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span><u></u><u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Verdana",sans-serif;color:black">LOCATION:</span><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> <b> </b></span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">GMCS 314</span></b><u></u><u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-size:10.0pt;font-family:"Verdana",sans-serif;color:black"> </span><u></u><u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Verdana",sans-serif;color:black">SPEAKER:</span><span style="font-size:13.5pt;font-family:"Verdana",sans-serif;color:black">  </span><b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">Drs. Soren Taveniers and Vasilis Fountoulakis</span></b> <b><span style="font-size:18.0pt;font-family:"Verdana",sans-serif">, <br>Aerospace Engineering, SDSU</span></b><u></u><u></u></p><p class="MsoNormal" align="center" style="text-align:center"><span style="font-family:"Verdana",sans-serif;color:black"> </span><u></u><u></u></p><p class="MsoNormal"><span style="font-family:"Verdana",sans-serif;color:black">ABSTRACT:</span><u></u><u></u></p><h2><span class="m_5574142148855973774event-description"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;font-weight:normal">Shocked particle-laden flows occur in a number of engineering applications and natural environments like scramjet combustors, detonation of explosives, and volcanic eruptions. Such problems are often simulated in an Eulerian-Lagrangian framework that tracks particles as points (Particle-Source-In-Cell, or PSIC) in a co-moving frame while solving the carrier fluid on an Eulerian grid. On a process-scale level, computational constraints typically require particles to be amalgamated into macro-particles (Cloud-In-Cell, or CIC). We propose SPARSE, a two-way coupled CIC model, which can accurately describe the average dynamics of the particle cloud while using significantly less computational particles compared to standard PSIC models. While the current iteration of SPARSE still requires a priori closure of the Reynolds-equivalent stresses, the aim is to close the latter a posteriori using high-resolution meso-scale simulations. This requires the construction of meta models to link the meso- and macro-scales, which introduces epistemic uncertainty into the SPARSE model. We propose a framework for quantifying the propagation of this uncertainty to the particle and fluid quantities, and demonstrate that it accurately predicts the  uncertainty for problems governed by advection and Euler equations. The integration of this uncertainty quantification framework in the SPARSE algorithm will enable us to build an efficient, fully-predictive multi-scale modeling approach for shocked particle-laden flows.<u></u><u></u></span></span></h2><h2><span style="font-size:11.0pt;font-family:"Verdana",sans-serif;color:black;font-weight:normal">HOST:</span><span style="font-family:"Verdana",sans-serif;color:#1f497d">  </span><span class="m_5574142148855973774event-description"><span style="font-size:12.0pt;font-family:"Verdana",sans-serif;font-weight:normal">Gustaaf Jacobs</span></span><u></u><u></u></h2><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><span style="font-size:9.5pt;font-family:"Verdana",sans-serif;color:black"> </span><u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal"><span style="font-size:9.5pt;font-family:"Verdana",sans-serif;color:black">Dr. Jose E. Castillo<br>Director/Professor<br>Computational Science Research Center<br>5500 Campanile Drive<br>San Diego State University<br>San Diego, CA  92182-1245<br>(619) 59407205/3430, FAX </span><a href="tel:%28619%29%20594-2459" target="_blank"><span style="font-size:9.5pt;font-family:"Verdana",sans-serif">(619) 594-2459</span></a><u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p></div></div><br>______________________________<wbr>_________________<br>
SDSU Computational Science Research Center<br>
Mailing List<br></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">







<p>Jose E. Castillo  Ph.D.</p><p>Director / Professor </p>
<p>Computational Science Research Center</p>
<p>5500 Campanile Dr</p>
<p>San Diego State University</p>
<p>San Diego CA 92182-1245</p>
<p>619 5947205/3430, Fax 619-594-2459</p><p> <a href="http://www.csrc.sdsu.edu/mimetic-book/" target="_blank">http://www.csrc.sdsu.edu/mimetic-book/</a></p></div>
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