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. | Mustakimova S.A. – leading programmer E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it 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 |
| Title of the article | Computer modeling of hydrodynamics and heat transfer in spring-twisted channels |
| Abstract. | The article is devoted to computer modeling of hydrodynamics and heat exchange at turbulent flow of incompressible fluid in the spring-the wit channel using the software package FLUENT. The geometrical model and the area of the fluid flow in the spring-twisted pipe. Built finite element mesh of the complex geometry of the flow region under consideration. Revealed the nature of the distribution of the velocity field, temperatures and pressures in the proposed channel. The study was conducted in the turbulent flow region in the speed range of the working medium from 0,6 m/s to 2 m/s, the equivalent diameter of the channels equal to the diameter of the smooth pipe. In the criteria range of Re (10000...50000) calculation of flow parameters (velocity field, temperature and pressure) were carried out using two-parameter k-? turbulence model. When comparing the temperature values at the exit in the Central part of spring-twisted and smooth channels the temperature in the proposed channel 30...35 % and the hydraulic resistance is 20 % higher compared with a smooth pipe. It is also established that in the flow path of the spring-twisted channel has an extensive circulation, due to the swirling flow, in comparison with a smooth tube. Shown, the heat exchange efficiency is determined by the speed of the current environment in the flowing part of the channel at a speed of 0,6 m/s...0,8 m/s is intense heating of the fluid in the flow core. With increasing speed the heat transfer rate decreases. |
| Keywords. | heat transfer, fluid dynamics, computer modeling. |
| For citations: | Mustakimova S.A., Zolotonosov Ya.D. Computer modeling of hydrodynamics and heat transfer in spring-twisted channels // Izvestiya KGASU. 2015. №4(34) P.206-211. |
