Statistics of particle time-temperature histories: Progress report for August 2012

Technical Report · Wed Aug 01 00:00:00 EDT 2012

DOI:https://doi.org/10.2172/1051736· OSTI ID:1051736

Hewson, John C. ^[1]; Lignell, David O. ^[2]; Sun, Guangyuan ^[2]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
2. Brigham Young Univ., Provo, UT (United States)

Progress toward predictions of the statistics of particle time-temperature histories is presented. The joint statistics of a scalar like the temperature and an exposure time scale are of interest. We have related these quantities to statistics of conserved scalars, their gradients and their diffusive time scales. Future work will apply the one-dimensional turbulence (ODT) model to evaluate the suitability of these statistics to predicting particle time-temperature histories. To that end, we have reported on past performance of the ODT model and have implemented a Lagrangian particle tracking capability into the ODT code. The results of ODT-driven particle dispersion have been compared with classical experimental data, and preliminary statistics of particle evolution in reacting flows are also reported.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); Defense Threat Reduction Agency (DTRA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1051736
• Report Number(s): SAND--2012-7383
• Country of Publication: United States
• Language: English