Luis Hatashita (Advisor: Prof. Suresh Menon)
will propose a master’s thesis entitled,
On the role of temperature in mixing in post-detonation conditions
On
Friday, April 7 at 10:00 a.m. Montgomery Knight Building 317
Abstract
Jet in crossflow (JICF) has been a subject of research for several decades due to its enhanced mixing properties, i.e. greater than free and coaxial jets. It is moreover encountered in nature in the form of volcano plumes and camouflage sources, and in industrial applications, fuel injection in jet engines or gas turbines is also of interest. Nevertheless, non-reactive high-temperature JICF configurations are not often assessed, since cooling systems do not attain temperatures in the order of 1000K. Hence, an investigation on the effect of temperature in scalar mixing is carried out, focusing on the change of intermediate length and time scales of the latter by the former. Jet and crossflow boundary conditions are set to replicate the re-shock mixing of a finite-thickness curtain in free-field detonations, wherein a high-temperature blast wave interacts with a cold contact surface. In the current work, high-fidelity numerical simulations will be conducted and results on thermal and scalar mixing will be compared against standard conditions JICF with the same momentum ratio. The physics of scalar mixing at high temperature herein assessed is relevant to comprehend the effect of mixing on the thermal decomposition of chemical agents in the destruction of warfare stockpiles by the use of explosives.
Committee
• Prof. Suresh Menon – School of Aerospace Engineering (advisor)
• Prof. Joseph Oefelein – School of Aerospace Engineering
• Prof. Wenting Sun – School of Aerospace Engineering