ABOUT PROCEDURE FOR IDENTIFYING THE MATHEMATICAL MODEL OF THE AIR FLOW
When testing a number of industrial products for a wide range of applications, it is necessary to use the tests of these products in the air flow. To create a flow, a test facility is used that has the ability to create a flow of air with the necessary characteristics (pressure, temperature, speed, air flow and other indicators). A mathematical model of the air flow can provide essential help in obtaining the required air characteristics. This mathematical model links the main air flow figures obtained with the regulating organs of the installation (the position of the air dampers, the fan speed, the temperature of the heating elements and other external influences). This mathematical model makes it possible to calculate the required control actions for obtaining specified air characteristics, which facilitates the creation of control systems for test installations, in addition, its use will be useful in solving diagnostic problems, training operators, and in carrying out a wide range of scientific research. The identification algorithm of mathematical model of an air stream with use of the program-modeling complex is considered in the article.