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Helicity-Density And Normalized-Helicity Maps Of FlowsMaps of helicity density and normalized helicity useful as graphical representations of important features of three-dimensional flow fields containg vortexes. Emphasize complicated and important parts of flow field, identify vortexes, differentiate between primary and secondary vortexes, indicate sense of swirling motion, locate free singular points, and trace vortex-core streamlines emanating from these points.
Document ID
19910000386
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Degani, David
(NASA Ames Research Center, Moffett Field, CA.)
Levy, Yuval
(Israel Inst of Tech)
Seginer, Arnan
(Israel Inst of Tech)
Date Acquired
August 14, 2013
Publication Date
August 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 8
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
ARC-12464
Accession Number
91B10386
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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