ISSN 1991-2927
 

ACP № 3 (65) 2021

Author: "Yury Andreevich Khakhalev"

Vladislav Nikolaevich Kovalnogov, Doctor of Sciences in Engineering; graduated from Kazan State University; Head of the Department of Heat-and-Power Engineering of Ulyanovsk State Technical University; a patent holder, an author of articles, monographs in the field of modeling, research and optimization of the thermal and hydro- gas-dynamic processes, firing and wind power engineering. e-mail: kvn@ulstu.ruV.N. Kovalnogov,

Yury Andreevich Khakhalev, Candidate of Sciences in Engineering; graduated from Ulyanovsk State Technical University; Associate Professor at the Department of Heat-and-Power Engineering of UlSTU; a patent holder; an author of articles in the field of modeling and research of the hydro-gas-dynamic and thermal processes. e-mail: ulstu-td-ua@mail.ruI.A.Khakhalev,

Ekaterina Vladimirovna Tsvetova, Candidate of Sciences in Engineering; graduated from Ulyanovsk State Technical University; Associate Professor at the Department of Heat-and-Power Engineering of UlSTU; a patent holder; an author of articles in the field of modeling and research of the hydro-gas-dynamic and thermal processes. e-mail: katf0k@mail.ruE.V. Tsvetova,

Larisa Valerevna Khakhaleva, Candidate of Sciences in Engineering; graduated from Ulyanovsk Polytechnic Insitute; Associate Professor at the Department of Heat-and-Power Engineering of UlSTU; a patent holder; an author of articles in the field of modeling and research of the hydro-gas-dynamic and thermal processes. e-mail: larvall@mail.ruL.V. Khakhaleva

Mathematical modeling and numerical study of atmospheric boundary layer near windfarms65_4.pdf

The article analyzes Russian and foreign sources relating to the interaction of wind turbines with the surface layers of the atmosphere. It specifies the main problems of mathematical modeling of the atmospheric boundary layer near the wind farms due to adverse meteorological conditions, in particular, constant zero crossings in the autumn-winter period, various precipitation, a wide time range, air parameters, terrain and other features. The authors analyze the evolution of mathematical models of turbulence to describe the boundary layer near wind turbines from earlier to rapidly developing and currently used. To achieve greater accuracy and naturalism, it is proposed to use high-performance efficient algorithms based on combining scales and physics of phenomena. The authors propose a mathematical model for studying the state of the atmospheric polydisperse boundary layer under conditions of the Ulyanovsk wind farm, taking into account the dispersed particles in the flow, surface curvature, pressure gradient and other influences.

Mathematical modeling, model, boundary layer, turbulent flow, wind power, wind farm.

2021_ 3

Sections: Mathematical modeling

Subjects: Mathematical modeling.



Vladislav Nikolaevich Kovalnogov, Ulyanovsk State Technical University, Doctor of Engineering, graduated from the Faculty of Computational Mathematics and Cybernetics at Kazan State University, head of the Heat and Power Engineering Chair at Ulyanovsk State Technical University; author of articles, monographs, inventions in the field of modeling, research and optimization of hydrogasodynamic processes [e-mail: kvn@ulstu.ru]V. Kovalnogov,

Yury Andreevich Khakhalev, Ulyanovsk State Technical University, Graduated from the Faculty of Power at Ulyanovsk State Technical University, postgraduate student of the Heat and Power Engineering Chair at Ulyanovsk State Technical University; author of articles and research studies in the field of hydrogasodynamic processes [e-mail: ulstu-td-ua@mail.ru]Y. Khakhalev

Mathematical Modeling of Turbulent Flow Based on Analysis of Fractal Dimension of Pressure Fluctuations 31_8.pdf

The article defines the fractal dimension of turbulent pressure fluctuations on the basis of theoretical and experimental studies. It offers a mathematical model for turbulence based on the fractal characteristics of pulsations.

Boundary layer, pressure fluctuations, turbulent flow, model, chaos, fractal characteristics.

2013_ 1

Sections: Mathematical modeling, calculi of approximations and software systems

Subjects: Mathematical modeling.


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