add new talk

Author: diehlpk

index.html

@@ -137,6 +137,23 @@ <h2>Overview</h2>
 
 <h2>Talks</h2>
 
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+<div id="fy262"></div>
+<h3>Shedding Light on Interaction Binaries: Radiation Hydrodynamics with Octo-Tiger</h3>
+Speaker: Dominic Marcello<br>
+Center for Computation & Technology<br>
+Louisiana State University<br><br>
+
+Abstract:
+<p>
+Octo-TIGER is an adaptive, octree-based code for modeling self-gravitating hydrodynamics in interacting binaries. We have extended Octo-TIGER to include gray radiation transport via the M1 moment method, coupling radiation energy and flux to the existing PPM hydrodynamics and FMM gravity solvers within a task-based HPX framework. Radiation variables are discretized on the same AMR mesh and evolved using an implicit-explicit scheme to handle both optically thick and thin regimes while conserving total energy and radiative flux. We validate the RHD module with standard radiation test problems, including a planar radiation front propagating through uniform media, radiative equilibration in matter–radiation coupling tests, and diffusion of a Gaussian radiation pulse. These benchmarks confirm the accuracy and efficiency of the M1 implementation in Octo-TIGER, laying the groundwork for forthcoming production runs of interacting binaries with full radiation feedback.
+</p>
+
+Bio:
+<p>
+Dominic Marcello is the lead developer of the Octo-TIGER project at the Center for Computation & Technology at Louisiana State University. After earning his PhD in Physics in 2011, he served as a postdoctoral researcher in LSU’s Physics Department before joining CCT as a staff researcher. His work focuses on high-performance computational methods for astrophysics, particularly simulating interacting binary systems using adaptive mesh techniques, advanced hydrodynamics solvers, and radiation transport.
+</p>
+
 <div id="fy264"></div>
 <h3>Chapel's Batteries-Included Approach for Portable Parallel Programming</h3>
 Speaker: Engin Kayraklioglu<br>