Didaktické pomôcky veterného tunela

Abstract

The aim of the paper is to approach the issue of the flowing around didactic tools in the wind tunnel. Didactic tools are used for education and help in understanding the issue of aerodynamics. In the first part, the paper deals with theoretical knowledge about the wind tunnel and then describes the theory and laws of aerodynamics. The core of this work is the analysis of the given objects realized through numerical and experimental methods. By using CFD simulation of didactic tools, it was possible to obtain aerodynamic drag values, from which the values for the drag coefficient were calculated and then compared with tabular values from theory. Experimental verification of individual objects was carried out in a wind tunnel located at the Department of Air Transport in Dolný Hričov. The result of tests in the wind tunnel was the visualization of the air flow around the didactic aids. At the end of the work, both methods were compared and the reasons for deviations and inconsistencies were described.