Search Results - "Zilitinkevich, S S"

Turbulence energetics in stably stratified geophysical flows: Strong and weak mixing regimes by Zilitinkevich, S. S., Elperin, T., Kleeorin, N., Rogachevskii, I., Esau, I., Mauritsen, T., Miles, M. W.

“…Traditionally, turbulence energetics is characterised by turbulent kinetic energy (TKE) and modelled using solely the TKE budget equation. In stable…”
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Bag-breakup fragmentation as the dominant mechanism of sea-spray production in high winds by Troitskaya, Yu, Kandaurov, A., Ermakova, O., Kozlov, D., Sergeev, D., Zilitinkevich, S.

“…Showing the record strengths and growth-rates, recent hurricanes have highlighted needs for improving forecasts of tropical cyclone intensities most sensitive…”
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Enhanced haze pollution by black carbon in megacities in China by Ding, A. J., Huang, X., Nie, W., Sun, J. N., Kerminen, V.‐M., Petäjä, T., Su, H., Cheng, Y. F., Yang, X.‐Q., Wang, M. H., Chi, X. G., Wang, J. P., Virkkula, A., Guo, W. D., Yuan, J., Wang, S. Y., Zhang, R. J., Wu, Y. F., Song, Y., Zhu, T., Zilitinkevich, S., Kulmala, M., Fu, C. B.

“…Aerosol‐planetary boundary layer (PBL) interactions have been found to enhance air pollution in megacities in China. We show that black carbon (BC) aerosols…”
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Enhanced air pollution via aerosol-boundary layer feedback in China by Petäjä, T., Järvi, L., Kerminen, V.-M., Ding, A.J., Sun, J.N., Nie, W., Kujansuu, J., Virkkula, A., Yang, X., Fu, C.B., Zilitinkevich, S., Kulmala, M.

“…Severe air pollution episodes have been frequent in China during the recent years. While high emissions are the primary reason for increasing pollutant…”
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A Hierarchy of Energy- and Flux-Budget (EFB) Turbulence Closure Models for Stably-Stratified Geophysical Flows by Zilitinkevich, S. S., Elperin, T., Kleeorin, N., Rogachevskii, I., Esau, I.

“…Here we advance the physical background of the energy- and flux-budget turbulence closures based on the budget equations for the turbulent kinetic and…”
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Energy- and flux-budget (EFB) turbulence closure model for stably stratified flows. Part I: steady-state, homogeneous regimes by Zilitinkevich, S. S, Elperin, T, Kleeorin, N, Rogachevskii, I

“…We propose a new turbulence closure model based on the budget equations for the key second moments: turbulent kinetic and potential energies: TKE and TPE…”
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Thermal Roughness of the Fen Surface by Varentsov, A. I., Zilitinkevich, S. S., Stepanenko, V. M., Tyuryakov, S. A., Alekseychik, P. K.

“…The surface roughness lengths for momentum, z 0 u , and heat, z 0 T , are key parameters for modeling the momentum, mass and energy exchange between underlying…”
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Introduction: The Pan-Eurasian Experiment (PEEX) – multidisciplinary, multiscale and multicomponent research and capacity-building initiative by Kulmala, M, Lappalainen, H. K, Petäjä, T, Kurten, T, Kerminen, V.-M, Viisanen, Y, Hari, P, Sorvari, S, Bäck, J, Bondur, V, Kasimov, N, Kotlyakov, V, Matvienko, G, Baklanov, A, Guo, H. D, Ding, A, Hansson, H.-C, Zilitinkevich, S

“…The Pan-Eurasian Experiment (PEEX) is a multidisciplinary, multiscale and multicomponent research, research infrastructure and capacity-building program. PEEX…”
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Turbulent diffusion and turbulent thermal diffusion of aerosols in stratified atmospheric flows by Sofiev, M., Sofieva, V., Elperin, T., Kleeorin, N., Rogachevskii, I., Zilitinkevich, S. S.

“…The paper analyzes the phenomenon of turbulent thermal diffusion in the Earth atmosphere, its relation to the turbulent diffusion, and its potential impact on…”
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Direct numerical simulation of a turbulent wind over a wavy water surface by Druzhinin, O. A., Troitskaya, Y. I., Zilitinkevich, S. S.

“…Parameterization of the wind‐water‐waves interaction is a key problem of the air‐sea system modeling. Of most importance are water waves with sufficiently…”
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Resistance and heat‐transfer laws for stable and neutral planetary boundary layers: Old theory advanced and re‐evaluated by Zilitinkevich, Sergej S., Esau, Igor N.

“…The planetary boundary layer (PBL) resistance and heat‐transfer laws express the surface fluxes of momentum and heat through the PBL governing parameters…”
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Stably stratified airflow over a waved water surface. Part 1: Stationary turbulence regime by Druzhinin, O. A., Troitskaya, Y. I., Zilitinkevich, S. S.

“…Stably stratified turbulent boundary‐layer flows over both a waved water surface and a flat smooth surface are investigated through direct numerical simulation…”
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Effect of Stratification on the Aerodynamic Roughness Length and Displacement Height by Zilitinkevich, S. S, Mammarella, I, Baklanov, A. A, Joffre, S. M

“…The roughness length, z ₀u , and displacement height, d ₀u , characterise the resistance exerted by the roughness elements on turbulent flows and provide a…”
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Energy- and Flux-Budget Turbulence Closure Model for Stably Stratified Flows. Part II: The Role of Internal Gravity Waves by Zilitinkevich, S. S, Elperin, T, Kleeorin, N, L'vov, V, Rogachevskii, I

“…We advance our prior energy- and flux-budget (EFB) turbulence closure model for stably stratified atmospheric flow and extend it to account for an additional…”
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Modeling of the Dissipation Rate of Turbulent Kinetic Energy by Mortikov, E. V., Glazunov, A. V., Debolskiy, A. V., Lykosov, V. N., Zilitinkevich, S. S.

“…We consider a relaxation equation for turbulence wavenumber in semi-empirical turbulence closures. It is shown that the well-known phenomenological equation…”
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The study of the effect of small-scale turbulence on internal gravity waves propagation in a pycnocline by Druzhinin, O A, Ostrovsky, LA, Zilitinkevich, S S

“…This paper presents the results of modeling the interaction between internal waves (IWs) and turbulence using direct numerical simulation (DNS). Turbulence is…”
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Stably stratified air‐flow over a waved water surface. Part 2: Wave‐induced pre‐turbulent motions by Druzhinin, O. A., Troitskaya, Y. I., Zilitinkevich, S. S.

“…Recent experimental and direct numerical simulation (DNS) studies have discovered that stably stratified boundary‐layer turbulence over a flat surface is…”
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Layered Structure of Stably Stratified Turbulent Shear Flows by Glazunov, A. V., Mortikov, E. V., Barskov, K. V., Kadantsev, E. V., Zilitinkevich, S. S.

“…— Data of a numerical simulation of a stably stratified turbulent Couette flow are analyzed for various values of the Richardson number. Two different methods…”
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An Overview of Parameterezations of Heat Transfer over Moss-Covered Surfaces in the Earth System Models by Stepanenko, V. M., Repina, I. A., Fedosov, V. E., Zilitinkevich, S. S., Lykossov, V. N.

“…Moss cover plays an important role in shaping the thermodynamic and biogeochemical functioning of ecosystems at high latitudes, where it is the dominant…”
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Momentum and buoyancy transfer in atmospheric turbulent boundary layer over wavy water surface – Part 1: Harmonic wave by Troitskaya, Yu. I., Ezhova, E. V., Zilitinkevich, S. S.

“…The surface-drag and mass-transfer coefficients are determined within a self-consistent problem of wave-induced perturbations and mean fields of velocity and…”
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