Diagnostic Challenges in Multiphase, Reacting,and High-speed Flows

11:00 AM - ME 2054

Abstract:

Multiphase, reacting, and high-speed flows are ubiquitous to the National Security and Defense missions of Sandia National Laboratories. Dr. Guildenbecher will review current research challenges for applications to explosive fragmentation, multiphase hypersonics, metalized energetics, high-Mach aero-optics, and post-detonation fireball combustion. Recent diagnostic developments will be discussed, including advancement of digital holography, image tracking, laser-induced incandescence, and several other imaging and laser methodologies. Novel techniques that address common measurement challenges due to shockwaves, thermal gradients, and limited optical access will be reviewed. Many of these experiments support the development and advancement of high-fidelity models, and Dr. Guildenbecher will review several efforts integrating experiments and simulations, including current collaborations with Purdue on post-detonation fireball combustion.

Sandia National Laboratories is the nation’s preeminent engineering laboratory with focus on National Security missions. Sandia’s workforce is growing with many opportunities for rewarding careers. Dr. Guildenbecher will also review his own experiences translating his fundamental Ph.D. on liquid atomization into National Security research at Sandia.

Biography:

Daniel R. Guildenbecher is a Principal Member of the Technical Staff at Sandia National Laboratories in Albuquerque, New Mexico. Since 2021, he is also an Adjunct Associate Professor at the Purdue University School of Mechanical Engineering. Dr. Guildenbecher received his Ph.D. in Mechanical Engineering from Purdue University in 2009. Prior to joining Sandia, Dr. Guildenbecher was a Visiting Professor at the Karlsruhe Institute of Technology (2009-2010) and Purdue University (2010-2011).

Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525