Detection and tracking of coherent features in a mach 4 turbulent boundary layer

Ivan Marusic, Graham V Candler, Victoria Interrante, M. Pino Martin, Pramod K. Subbareddy, Alin Moss

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The detection and tracking of coherent vortical structures in a turbulent compressible boundary layer is considered. Several vortex identification methods are evaluated. It is found that for this flow, the discriminant of the characteristic polynomial of the velocity gradient tensor is the most, useful. It tends to highlight vortical structures that are located farther from the wall, and the feature detection is less sensitive to the level than the other methods evaluated. The flow fields are visualized using advanced volume rendering methods that allow large datasets to be analyzed efficiently. This methods have also been adapted to volume fill specific structures so that their evolution can be tracked in time. These approaches promise to make the analysis of large DNS datasets more efficient and quantitative.

Original languageEnglish (US)
Title of host publicationFluids 2000 Conference and Exhibit
DOIs
StatePublished - Dec 1 2000
EventFluids 2000 Conference and Exhibit - Denver, CO, United States
Duration: Jun 19 2000Jun 22 2000

Other

OtherFluids 2000 Conference and Exhibit
CountryUnited States
CityDenver, CO
Period6/19/006/22/00

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  • Cite this

    Marusic, I., Candler, G. V., Interrante, V., Martin, M. P., Subbareddy, P. K., & Moss, A. (2000). Detection and tracking of coherent features in a mach 4 turbulent boundary layer. In Fluids 2000 Conference and Exhibit https://doi.org/10.2514/6.2000-2414