Shape Complexity in Turbulence

Catrakis, Haris J. and Dimotakis, Paul E. (1998) Shape Complexity in Turbulence. Physical Review Letters, 80 (5). pp. 968-971. ISSN 0031-9007. doi:10.1103/PhysRevLett.80.968. https://resolver.caltech.edu/CaltechAUTHORS:CATprl98

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Abstract

The shape complexity of irregular surfaces is quantified by a dimensionless area-volume measure. A joint distribution of shape complexity and size is found for level-set islands and lakes in two-dimensional slices of the scalar field of liquid-phase turbulent jets, with complexity values increasing with size. A well-defined power law, over 3 decades in size (6 decades in area), is found for the shape complexity distribution. Such properties are important in various phenomena that rely on large area-volume ratios of surfaces or interfaces, such as turbulent mixing and combustion.

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Article

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URL	URL Type	Description
https://doi.org/10.1103/PhysRevLett.80.968	DOI	UNSPECIFIED

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©1998 The American Physical Society Received 4 September 1997 Support under AFOSR Grant No. F49260-94-1-0353 and discussions with C. Bond, M. Cross, H. Lam, and A. Leonard, as well as assistance by G. Gornowicz with the B-spline representation of the scalar fields, are gratefully acknowledged.

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DOI:

10.1103/PhysRevLett.80.968

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CaltechAUTHORS:CATprl98

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https://resolver.caltech.edu/CaltechAUTHORS:CATprl98

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5510

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CaltechAUTHORS

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20 Oct 2006

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08 Nov 2021 20:26

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