Characterization of Navy probes for temperature and species measurements in shock tubes
Abstract
Accurate characterization of temperature fields within blasts and fireballs produced by explosives is critical to characterizing weapons systems lethality and effectiveness for a range of applications, including counter-WMD operations. Obtaining accurate, time-resolved, localized temperature measurements within a fireball, however, poses many challenges due to the harsh nature of the environment. Problems to overcome are maintaining adequate sensitivity over the large range of temperatures to be measured (ranging from 300 – 3000 K), having sufficient signal in optically thick, particle-laden flows, and surviving high pressures from the blast wave. Furthermore, for a temperature diagnostic to be maximally informative, it must provide fast time-resolution (~ µs). Navy labs have developed various intrusive and non-intrusive techniques for measuring flow field parameters in such harsh environments. Detailed and accurate characterization of temperature diagnostic probes is crucial in this effort. UCF will use their state-of-the-art shock tube and detonation tube setups for characterizing the performance of probes used in Navy efforts under high temperature and pressure conditions. Shock tube provides an ideal platform for simulating high-temperature conditions experienced in real UCF will also cross-validate the performance of Navy probes with in-house absorption and schlieren diagnostics. The research will also enhance student training capabilities at the University of Central Florida, one of the largest Hispanic Serving Institutions in the country with more than 70,000 students, in characterizing the performance of explosives and propellants for weapons systems. It will directly contribute to Ph.D. dissertations and undergraduate honors theses and provide a future DoD workforce pipeline.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 18, 2025
- Source ID
- N001742210003
Entities
People
- Subith Vasu
Organizations
- United States Navy
- University of Central Florida Board of Trustees