Adjustable frequency and phase unsteady flow control experimental device based on rotary slit gate

• Main Authors: YANG YUXUAN, HUANG GUOPING, YUAN WEIHAO, DU SHUANG, WANG JINCHUN
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2020
• Subjects: BLASTING; HEATING; LIGHTING; MEASURING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; PHYSICS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; WEAPONS

The invention relates to an adjustable frequency and phase unsteady flow control experiment device based on a rotary slit gate. The adjustable frequency and phase unsteady flow control experiment device comprises an air entraining port, a slit gate air inlet flow path, the rotary slit gate, a slit gate air outlet flow path, a driving slit gate rotation generator and control jet flow nozzles. External high-pressure gas is introduced into the jet flow nozzles at the two sides of an angle area by designing a gas guide flow path; and the driving slit gate rotation generator drives the slit gate with a certain phase difference to rotate, pulse jet flow is generated at a jet flow outlet, and separation flow is restrained through the interaction of the pulse jet flow and a flow field, and therefore, the separation situation in the angle area is reduced or weakened. The device has the advantages that under the condition that asymmetric flow separation is generated in the corner area, flow excitation with adjustable p