Abstract
It is shown that the potential part of Lamb vector λ = ω × u, ω = Δ × u, where u is an isotropic Gaussian solenoidal random field, is much larger than its solenoidal part. This result shows that purely kinematic properties of turbulent flow can lead to essential reduction of its nonlinearity and thereby to impose considerable constraints on flow dynamics and topology.
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On summer leave from the Faculty of Engineering Tel-Aviv University, Tel-Aviv 69978, Israel
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Tsinober, A. (1991). How Solenoidal can be the Lamb Vector in Turbulent Flow? Consequences and Implications. In: Metais, O., Lesieur, M. (eds) Turbulence and Coherent Structures. Fluid Mechanics and Its Applications, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-7904-9_14
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DOI: https://doi.org/10.1007/978-94-015-7904-9_14
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