Articles | Volume 16, issue 12
https://doi.org/10.5194/acp-16-7889-2016
https://doi.org/10.5194/acp-16-7889-2016
Research article
 | 
29 Jun 2016
Research article |  | 29 Jun 2016

A DNS study of aerosol and small-scale cloud turbulence interaction

Natalia Babkovskaia, Ullar Rannik, Vaughan Phillips, Holger Siebert, Birgit Wehner, and Michael Boy

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Cited articles

Andrejczuk, M., Grabowski, W., Malinowski, S., and Smolarkiewicz, P.: Numerical simulations of Cloud-clear air interfacial mixing, J. Atmos. Sci., 61, 1726–1739, 2004.
Babkovskaia, N., Haugen, N., and Brandenburg, A.: A high-order public domain code for direct numerical simulations of turbulent combustion, J. Comput. Phys., 230, 1–12, 2011.
Babkovskaia, N., Boy, M., Smolander, S., Romakkaniemi, S., Rannik, U., and Kulmala, M.: A study of aerosol activation at the cloud edge with high resolution numerical simulations, Atmos. Res., 153, 49–58, 2015.
Benmoshe, N. and Khain, A. P.: The effects of turbulence on the microphysics of mixed-phase deep convectiveclouds investigated with a 2-D cloud model with spectral bin microphysics, J. Geophys. Res.-Atmos., 119, 207–221, 2014.
Ditas, F., Shaw, R. A., Siebert, H., Simmel, M., Wehner, B., and Wiedensohler, A.: Aerosols-cloud microphysics-thermodynamics-turbulence: evaluating supersaturation in a marine stratocumulus cloud, Atmos. Chem. Phys., 12, 2459–2468, https://doi.org/10.5194/acp-12-2459-2012, 2012.
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Short summary
Turbulence, aerosol growth and microphysics of hydrometeors in clouds are intimately coupled. A new modelling approach was applied to quantify this linkage. We study the interaction in the cloud area under transient, high supersaturation conditions, using direct numerical simulations. Analysing the effect of aerosol dynamics on the turbulent kinetic energy and on vertical velocity, we conclude that the presence of aerosol has an effect on vertical motion and tends to reduce downward velocity.
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