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First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address.Broyda V.A. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Safiullin F.F. – magistrate E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1
Title of the articleNumerical study of the cylindrical body aerodynamics in a duct with a diaphragm
Abstract.The problem is solved by numerical simulation (CFD). Velocity and pressure fields of axisymmetric flow in a duct with a cylindrical body and a diaphragm at a variable distance l from the cylindrical body to the edge of the diaphragm are calculated. Verification of numerical method performed by comparing the calculated value of the coefficient of local resistance of the diaphragm with its experimental value obtained from reference literature. Pressure distribution at the beginning and end of the calculation area allowed to determine local resistance coefficient ?. Pressure distribution on the front and back surfaces of the cylindrical allowed to calculate the coefficient k, which characterizes the impact of the flow on a cylindrical body. ? and k values are presented depending on the relative size – ratio of the distance l to the channel diameter d. The calculations were performed for different variants of the length of the cylindrical body and cone diaphragm. The data apply to all such devices with a geometrically similar size in the developed turbulent flow regime. The results can be used in the design flow regulators, ensuring the rational use of energy.
Keywords.duct, diaphragm, cylindrical body, pressure.
For citations:Broyda V.A., Safiullin F.F. Numerical study of the cylindrical body aerodynamics in a duct with a diaphragm // Izvestiya KGASU. 2015. №3(33) P.93-97.


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