VERIFICATION OF THE RESULTS OF NUMERICAL MODELING OF GAS JETS OUTFLOW FROM A CYLINDRICAL NOZZLE USING SHADOW PHOTOGRAPHY METHODS

Many varieties of designs of top blowing nozzles in oxygen converters were created. Every new nozzle requires testing and studying the technological and physical possibilities, which is almost impossible to do in industrial conditions. High-temperature, low-temperature and mathematical modeling methods are actively developing for studying the gas-hydrodynamic features of gas jets flowing from nozzles of various designs. Mathematical modeling gives the possibility of simultaneously evaluating several factors and predicts the operating parameters of nozzles. However, this type of modeling at the initial stages requires verification. It is most often done with direct methods of measuring rates, depending on the availability of equipment. The paper studies the possibility of verifying the results of mathematical modeling of the outflow of a gas jet from a cylindrical nozzle by using shadow photography. A significant level of correspondence between the results of both types of modeling and the advantages of mathematical modeling were noted.