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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.Bagoutdinova A.G. – candidate of technical sciences, associate professor E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Zolotonosov A.Ya. – candidate of technical sciences, engineer Zolotonosov Ya.D. – doctor of technical sciences, professor 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 Sulimov N.I. – student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan (Volga) Federal University The organization address: 420008, Russia, Kazan, The Kremlin st., 18 Yakhnev M.N. – engineer mechanic of the radial forging plant Ltd. «METCHIV» The organization address: 454091, Russia, Chelyabinsk, Lenin st., 21v, of. 613
Title of the articleMathematical description of the heat exchange surfaces of complex channels such as «confuser-diffuser»
Abstract.The most important task of the modern heat power engineering is the creation of high-performance small-size heat-exchange equipment of large unit capacity from the intensive processes of heat exchange, implemented by different methods. These include: methods of impact to the surface heat transfer and hydrodynamic effects in the flow, the impact on the physical properties of a fluid. One of the promising directions of the method is based on the idea of the impact on the structure of the flow through artificially created by the heterogeneity of pressure by means of a special profiled surface. Channels like the «confuser-diffuser» with variable cross-section is one of the most effective and high-tech designs of heat transfer surfaces. In order to improve the efficiency of the heat supply channels «confuser-diffuser» by way of spin in their internal flow, the authors are invited to perform such channels in the form of a helical surface in the form of slanting helicoids. In this article we propose a mathematical model describing the heat transfer surfaces twisted channel type «confuser-diffuser». Equation surfaces are stored in a vector-parametric form on the basis of the fundamental analytical and differential geometry. In order to verify the adequacy and visualization recorded equations are constructed surface in the form of tapering helicoids in the form of «confuser-diffuser» elliptical and circular cross-sections with the help of the package of applied programs of Matlab.
Keywords.Heat transfer elements, the heat exchange surface, the mathematical model, helix.
For citations:Bagoutdinova A.G., Zolotonosov A.Ya., Zolotonosov Ya.D., Sulimov N.I., Yakhnev M.N. Mathematical description of the heat exchange surfaces of complex channels such as «confuser-diffuser» // Izvestiya KGASU. 2012. №4(22) P.204-208.


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