ISSN 1991-2927
 

ACP № 1 (63) 2021

Author: "Larisa Valerevna Khakhaleva"

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 (UlSTU); an author of articles, monographs, and inventions in the field of simulation, research, and optimization of thermal and gas-dynamic processes in power installations and processing equipment. e-mail: kvn@ulstu.ruV. N. Kovalnogov

Ruslan Vladimirovich Fedorov, Candidate of Sciences in Engineering; graduated from Ulyanovsk State Technical University; Associate Professor at the Department of Heat-and-Power Engineering of UlSTU; an author of articles and inventions in the field of numerical modeling the hydro-gas-dynamic processes. e-mail: r.fedorov@ulstu.ruR. V. Fedorov

Andrei Valentinovich Chukalin, Candidate of Sciences in Engineering; graduated from Ulyanovsk State Technical University; Junior Scientist of the Scientific Research Office of the Department for Research Activities and Innovations at UlSTU; an author of articles and inventions in the field of numerical modeling the hydro-gas- dynamic processes. e-mail: chukalin.andrej@mail.ruA. V. Chukalin

Larisa Valerevna Khakhaleva, Candidate of Sciences in Engineering; graduated from Ulyanovsk State Technical University; Associate Professor at the Department of Heat-and-Power Engineering of UlSTU; an author of articles and inventions in the field of numerical modeling the hydro-gas-dynamic processes. e-mail: larvall@mail.ruL. V. Khakhaleva

Mathematical modeling of exchange processes in the turbulent boundary layer. Model analysis and verification60_5.pdf

The fundamental tool for studying complexgas-dynamic processes occurring under non-stationary conditions is mathematical modeling, which allows reliable studies to carry out comprehensive research and development of technical solutions. A promising area of research is the search and development of methods for controlling the boundary layer of gas flows, which can intensify or reduce exchange processes in the boundary layer of power plants used in various industries of our country, such as: energy, aircraft manufacturing, shipbuilding. A modern and effective control method is a method based on the use of a damping surface. The impact of the damping surface is expressed in a decrease in the intensity of generation of turbulent vortices, which in turn leads to an increase in the velocity in the boundary layer and a decrease in the friction and heat transfer resistance. Research and development of technology will allow developing technical solutions for efficient and resource-saving energy. The paper considers a method for modeling a turbulent boundary layer, which allows one to take into account the effect of the damping surface on the metabolic processes occurring in the boundary layer of the gas stream. The paper also presents the results of a comprehensive hot-wires anemometric study of the boundary layer of a gas stream on a damping surface. The experiment was carried out using certified equipment in a wind tunnel and aimed at developing the theory and verifying the software package, in which the simulation method is implemented.

Mathematical modeling, numerical research, boundary layer, turbulence, laminarization, damping surface, heat and mass transfer.

2020_ 2

Sections: Mathematical modeling

Subjects: Mathematical modeling.



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