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. | Posohin V.N. – doctor of technical sciences, professor Е-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kareeva J.R. – post-graduate student Е-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 | Numerical research of the flat jet, expiring from the gap with finite size to the dead-end |
| Abstract. | In this article the problem about plane of the jet from the gap with finite size to the dead-end with length l and height 2Н is solved. Inflow gap had sizes 2b0=4,2; 6,0; 11,9; 32,5; 62; 123 mm, inflow velocity in all cases the same u0=52,9 м/с. The solution is solved numerically with the help of programm complex Fluent. As a model of closure of the system of flat turbulent motion equations the “standard” model is adopted. Boundary conditions on permeable and impermeable sections of the border region proposed by Fluent are used. In the result of solution dimensionless depences of main geometric and kinematic characteristics of jet from the constraint parameter are obtained. Identified: width of jet, maximum and average velocities in direct and back flows, consumption, static pressure. All results in the dimensionless form are presented. As a scales are adopted: linear – Н; velocity – u0; consumption – L0=u0b0; pressure – . The results of numerical research show that the constraint parameter has important influence to the character of jet extension. Its increase leads to fast decrease of axial velocity and consumption in the jet. The range of jet the greater the less constraint parameter. |
| Keywords. | Numerical method, Fluent, flat jet, dead-end, constraint parameter. |
| For citations: | Posohin V.N., Kareeva J.R. Numerical research of the flat jet, expiring from the gap with finite size to the dead-end // Izvestiya KGASU. 2012. №2(20) P.135-140. |
