Radulescu Gasdynamics Laboratory

July 2017, She-Ming Lau-Chapdelaine and I attended the International Symposium on Shock Waves in Nagoya Japan.   Shem presented his paper on shock reflections in low-gamma gases, which earned him a best paper award!  We showed how the slip line jets forward with decreasing gama and increase in shock Mach number.  Clearly relevant for Mach reflections in detonations.

From left, Maxime La Fleche, Nick Sirmas, She-Ming Lau-Chapdelaine, me, Willstrong Rokotoarison, Qiang Xiao, Wentian Wang, Brian Maxwell and Ramki Murugesan Fun times in and out of the technical sessions: Julian and John Lee with Jenny Chao mike drop? awsome Edyta the karaoke-queen Road trip on the way back, pit stop in Magog, for 70% done Steak-Frites (WW)

Today marks the final submission of Nick's seminal PhD thesis on shock instability in gases with non-elastic collisions.  cheers to the Radulescu-Sirmas (Sirmas-Radulescu?) instability! very proud of this guy! The shock instability captured via molecular dynamics in gases with inelastic collisions (bottom) can only be recovered at the continuum scale if molecular fluctuations are included in a Navier Stokes (middle).  Absence of viscous terms (top) cannot dissipated the fluctuations, and unphysical mixing ensues.