METHOD OF LABORATORY MODELING OF GAS DYNAMICS TASKS (VERSIONS) AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2010 - IPC G09B23/12 

FIELD: teaching.

SUBSTANCE: working medium is accelerated in fully or partially vacuumised channel of permanent section by gas pressure that does not exceed pressure of ambient atmosphere. Energy of accelerated working medium is used. Device, according to version 1, comprises channel closed at one end. Working medium is arranged in it. At the open end of channel it is connected to outer source of gas pressure. Medium is additionally equipped with a chamber equipped with a system of its volume vacuumising. Channel is filled with gas at atmospheric pressure, volume of channel is connected with volume of chamber via pneumatic relay. Outer source of gas pressure is pressure of atmospheric air. Device, according to version 2, comprises closed channel separated from outer source of gas pressure with the help of pneumatic relay, channel is separated by working medium into two compartments, chamber one that borders with pneumatic relay, and accelerating relay, and also a system of accelerating compartment vacuumising. Both compartments are equipped with a system of vacuumising with provision of specified position of working medium in process of vacuumising and with prevention of possibility for gas to flow into accelerating compartment.

EFFECT: reduced level of danger, performance of laboratory works by students without long-term preparation and obtainment of special permits.

15 cl, 5 dwg