Advancing the science of explosive fragmentation and afterburn fireballs though experiments and simulations at the benchtop scale

Guildenbecher, Daniel Robert; Dallman, Ann; Hall, Elise; Halls, Benjamin R.; Jones, Elizabeth; Kearney, Sean P.; Marinis, Ryan T.; Murzyn, Christopher; Richardson, Daniel; Pérez, Francisco E. Hernández; Reu, Phillip L.; Thompson, A. G.; Welliver, Marc; Mazumdar, Ellen; Pourpoint, Timothée L.; White, Catriona; Brown, Alex; Balachandar, S.; Houim, Ryan W.

doi:10.2172/1669203

Cited by 5 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, particulates are suspected to dominate visible and near infrared fireball emissions [5,6]. Efforts reported here develop the first quantitative in situ imaging diagnostics of soot within the turbulent mixing phase of post-detonation fireballs, with the ultimate goal to provide validation data to support predictive modeling [7,8].…”

Section: Explosively Generated Sootmentioning

confidence: 99%

Extinction Imaging Diagnostics for In Situ Quantification of Soot within Explosively Generated Fireballs

Saltzman

Brown

Wan

et al. 2023

Propellants Explo Pyrotec

View full text Add to dashboard Cite

Fireballs produced from the detonation of high explosives often contain particulates primarily composed of various phases of carbon soot. The transport and concentration of these particulates is of interest for model validation and emission characterization. This work proposes ultra-high-speed imaging techniques to observe a fireball's structure and optical depth. An extinction-based diagnostic applied at two wavelengths indicates that extinction scales inversely with wavelength, consistent with particles in the Rayleigh limit and dimensionless extinction coefficients which are independent of wavelength. Within current confidence bounds, the extinction-derived soot mass concentrations agree with expectations based upon literature reported soot yields. Results also identify areas of high uncertainty where additional work is recommended.

show abstract

Section: Explosively Generated Sootmentioning

confidence: 99%