METHOD FOR DETERMINATION OF FLOW-RATE CHARACTERISTICS OF DRAINAGE DEVICES OF FLIGHT VEHICLE COMPARTMENT AND SYSTEM FOR ITS REALIZATION Russian patent published in 2005 - IPC

FIELD: aerodynamic tests, applicable in rocket manufacturing and aviation for determination and control of flight aerodynamic loads on the compartments of flight vehicles and their components.

SUBSTANCE: the claimed method includes injection of thermostating medium in the compartment, used as working medium. The flow rate of this medium is so selected that the pressure differentials outside and inside the compartment in the ground conditions would correspond the pressure differentials acting on the compartment in the flight trajectory. The characteristics of interest of the drainage devices are determined according to the measured flow rates at the run over of the thermostating medium through each drainage device, pressure differentials and the medium temperature in the compartment. The non-tightness of the compartment is taken into account. According to the test results, a decision on finishing of the compartment, or a change of the quantity of the drainage devices operating in flight, may be taken.

EFFECT: enhanced accuracy of determination of the flow-rate characteristics of the drainage device, reliability of operation of the compartment, and reduced operating expenditures connected with the work.

2 cl, 5 dwg