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Double-diffusive density flows

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Abstract

In a hydrostatically stable binary mixture (e.g., stably stratified and horizontally density-homogeneous salt seawater), horizontal density gradients can arise due to the difference between the diffusivities of two substances. The horizontal gradients of hydrostatic pressure that are formed in this case lead to the generation of density flows which appear to have been previously ignored. Examples of such flows arising in a fluid with initially horizontally uniform density and pressure distributions are analyzed. Density flows can also arise due to different boundary conditions for two substances.

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  1. Taifun Research and Production Association, ul. Pobedy 4, Obninsk, Kaluga oblast, 249038, Russia

    L. Kh. Ingel’

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  1. L. Kh. Ingel’
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Correspondence to L. Kh. Ingel’.

Additional information

Original Russian Text © L.Kh. Ingel’, 2010, published in Izvestiya AN. Fizika Atmosfery i Okeana, 2010, Vol. 46, No. 1, pp. 48–52.

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Ingel’, L.K. Double-diffusive density flows. Izv. Atmos. Ocean. Phys. 46, 41–44 (2010). https://doi.org/10.1134/S0001433810010068

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  • DOI: https://doi.org/10.1134/S0001433810010068

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