About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Anvar V. Gumerov, candidate of technical sciences, associate professor, Kazan State University of Architecture and Engineering, Kazan, Russian Federation Е-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it |
| Title of the article | Determination of the coefficients of forces acting on a rectangular prism in a two-dimensional flow by the method of discrete vortices |
| Abstract. | In this paper, the calculation method of discrete vortices determines the aerodynamic coefficients of the section of a rectangular high-rise building in plan. The problem of two-dimensional unsteady separation flow around a rectangular cylinder by an incompressible medium is considered. Calculations were carried out for various rectangular sections at different integration steps and the number of attached vortices on the contour of a streamlined rectangle. It is shown that by varying these parameters, it is possible to obtain aerodynamic characteristics close to experimental data. Results. Time dependences of coefficients of aerodynamic forces for various rectangles are obtained. The distribution of the pressure coefficient over the surface of the rectangle at the maximum lifting force is given. We compared the obtained calculated dependences of the force coefficients and the Strouhal number for various rectangles with the available experimental data. Recommendations are given on the selection of the integration step and on the number of placement of attached vortices on the contour of the rectangle. Conclusions. The significance of the results obtained for the construction industry consists in the possibility of evaluating the structural elements of rectangular cross-section for strength and fatigue, using the calculated force coefficients. The calculation model makes it possible to determine the distribution of the pressure coefficient for finding wind loads on the fa?ade panels of multi-storey residential buildings. |
| Keywords. | method of discrete vortices, bound and free vortices, control points, rectangular prism, the Strouhal number, flow complex potential |
| For citations: | A.V. Gumerov, Determination of the coefficients of forces acting on a rectangular prism in a two-dimensional flow by the method of discrete vortices // News KGASU 2022 №3 (61), p. 110-118, DOI: 10.52409/20731523_2022_3_110, EDN: HIACOU |
