Email this article Analytical Model for the Generation of Vorticity Due to Inhomogeneous Friction on the Underlying Surface
- Authors: Ingel L.K.1,2, Makosko A.A.3,2
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Affiliations:
- Research and Production Association “Typhoon”
- Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences
- Russian Academy of Sciences
- Issue: Vol 59, No 4 (2023)
- Pages: 417-420
- Section: Articles
- URL: https://journals.rcsi.science/0002-3515/article/view/136923
- DOI: https://doi.org/10.31857/S0002351523040090
- EDN: https://elibrary.ru/YOBQKP
- ID: 136923
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Abstract
In a number of recent publications, attention is drawn to the heterogeneity of the underlying surface as a factor that can contribute to the initiation and intensification of tornadoes. The paper proposes an analytical model for the generation of vorticity under the influence of horizontally inhomogeneous friction. The resulting vorticity is proportional to the background flow velocity and to the horizontal gradient of the drag coefficient transverse to this flow; dependence on other factors is relatively weak. Numerical estimates show the possibility of efficient vorticity generation.
About the authors
L. Kh. Ingel
Research and Production Association “Typhoon”; Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences
Author for correspondence.
Email: lev.ingel@gmail.com
Russia, 249038, Obninsk, ul. Pobedy, 4; Russia, 119017, Moscow, Pyzhevsky per., 3
A. A. Makosko
Russian Academy of Sciences; Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences
Email: lev.ingel@gmail.com
Russia, 119991, Moscow, Leninskii pr., 14; Russia, 119017, Moscow, Pyzhevsky per., 3
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