Publications

Results 21701–21800 of 99,299

Search results

Jump to search filters

Big Data for Actionable Intelligence (BDAI) poster

Galasso, Jennifer; Garcia, Rudy; Ma, Tian; Patrizi, Laura; Danford, Forest; Ulmer, Craig; Hanna, Craig; Xie, Matthew; Ybarra, Bernardino; Brooks, Wesley; Venezuela, Otoniel; Draelos, Timothy; Gunda, Thushara; Loyd, Jason

Abstract not provided.

Wavelet-based algorithm for correction of beam-steering artefacts in turbulent flow imaging at elevated pressures

Experiments in Fluids

Zhou, Bo; Ruggles, Adam J.; Huang, Erxiong; Frank, Jonathan H.

Abstract: Beam steering by index-of-refraction gradients poses a significant challenge for laser-based imaging measurements in turbulent reacting and non-reacting flows, particularly at elevated pressures. High fidelity imaging and quantitative data interpretation in turbulent flows can be considerably impeded by artefacts generated from beam steering. A wavelet-based filtering scheme has been developed to recover the underlying turbulent flow structures from imaging measurements containing severe beam-steering artefacts. This analysis technique is equally applicable to imaging measurements in reacting and non-reacting flows. It is demonstrated using mixture fraction measurements in a transient turbulent jet flow at 8 bar using Rayleigh scattering imaging at a repetition rate of 100 kHz. The corrected images reveal the temporal evolution of flow structures with negligible residual beam-steering artefacts. Tests of the sensitivity of the wavelet-based filtering scheme to noise and spatial resolution indicate that it is a robust analytic tool for correcting severe beam-steering artefacts commonly encountered in laser-based imaging measurements at elevated pressures. Graphic abstract: [Figure not available: see fulltext.].

More Details

Big Data for Actionable Intelligence (BDAI) talk

Galasso, Jennifer; Garcia, Rudy; Ma, Tian; Patrizi, Laura; Danford, Forest; Ulmer, Craig; Hanna, Craig; Xie, Matthew; Ybarra, Bernardino; Brooks, Wesley; Venezuela, Otoniel; Draelos, Timothy; Gunda, Thushara; Loyd, Jason

Abstract not provided.

Final Electrochemical Safeguards Model for the MPACT 2020 Milestone

Cipiti, Benjamin B.

The Material Protection, Accounting, and Control Technologies (MPACT) program is working toward a 2020 demonstration of Safeguards and Security by Design for advanced fuel cycle facilities. This milestone ties together modeling and experimental work and will initially demonstrate the concept for electrochemical processing facilities. The safeguards modeling tool used is the Separation and Safeguards Performance Model (SSPM). This report outlines the baseline model design that will be used for the 2020 milestone analysis, which was updated to represent a new baseline flowsheet developed for the MPACT program. The model was also used to generate simulation data for other labs to use as part of their safeguards analysis. Finally, this report describes how the 2020 milestone will be met. ACKNOWLEDGEMENTS This work was funded by the Materials Protection, Accounting, and Control Technologies (MPACT) working group as part of the Nuclear Technology Research and Development Program under the U.S. Department of Energy, Office of Nuclear Energy.

More Details
Results 21701–21800 of 99,299
Results 21701–21800 of 99,299