Dementyev S. Air Flow in Ducts with a Large Cross-Section Control

Object of research - the process of measuring and controlling air flow in channels with large cross-section. Subject of research - the methods and means to control air flow in ventilation ducts mine. Methods of research based on the use of equations of mathematical physics, statistical data processing of experiments and computational methods. The theoretical significance of the results is an improved mathematical model for measuring air flow, which takes into account the high humidity, channel walls roughness and the air flow nature, thus improving the flow measurement accuracy, simplify the compressibility coefficient definition and air dynamic viscosity, improve the control reliability. The practical significance of the results was developed and introduced device to airflow control, the device for calibration and verification of pressure tubes, developed the primary converter - pressure tube, which allows you to determine the air flow direction. The degree of implementation - in the industry. Scope (the industry) use - institutions and enterprises, where the transportation and control of large air volumes.