Spark synthesized jet flow exciter based on electromagnetic valve and control method thereof
A technology of synthetic jet and solenoid valve, which is applied in aircraft control, boundary layer control, and affects the air flow flowing through the surface of the aircraft, etc. It can solve the problems of low energy, low momentum, and difficult external mainstream continuous influence
Inactive Publication Date: 2017-02-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is to overcome the current situation that the existing spark-type synthetic jet exciter has low energy, low momentum, passive air suction, and is difficult to continuously affect the external mainstream, and it is difficult for a single device to apply various To deal with the problem of fluid control method, a spark-type synthetic jet actuator based on solenoid valve and its control method are proposed
Method used
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Embodiment Construction
[0050] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0051]The invention discloses a spark-type synthetic jet exciter based on an electromagnetic valve, which comprises a cylinder, a spark plug, an intake conduit, an electromagnetic valve and an electromagnetic valve controller; the cylinder is provided with an orifice 1 for ejecting jet; the intake conduit Conducted with the cylinder to connect to an external air source; the spark plug is set at the bottom of the cylinder, and its positive pole 5 and negative pole 6 are connected to an external high-voltage discharger for discharging in the cylinder; the solenoid valve 8 is set in the intake duct for Control the conduction and isolation of the intake conduit; the solenoid valve controller 10 is used to control the opening and closing of the solenoid valve.
[0052] The cylinder can be set as a hollow cylinder, and the orifice 1 is set on the center ...
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The invention discloses a spark synthesized jet flow exciter based on an electromagnetic valve and a control method thereof. The jet flow exciter comprises a cylinder, a spark plug, an intake guide pipe, the electromagnetic valve and an electromagnetic valve controller; the cylinder is provided with a hole port for spraying out jet flows; the intake guide pipe is conducted with the cylinder for connecting with an external air source; the spark plug is arranged at the bottom of the cylinder, and a positive pole and a negative pole thereof are connected with an external high-voltage discharge machine for discharging in the cylinder; the electromagnetic valve is arranged in the intake guide pipe for controlling conduction and separation of the intake guide pipe; and the electromagnetic valve controller is used for controlling opening and closing of the electromagnetic valve. The jet flow exciter mounts the electromagnetic valve on a cavity body and accesses into the air source; and the electromagnetic valve can generate continuous jet flows (full opening of the electromagnetic valve) and pulse jet flows (discontinuous opening and closing of the electromagnetic valve) according to signals input by a signal generator.
Description
technical field [0001] The invention relates to the active flow control technology of the internal and external flow field of a high-speed aircraft, in particular to a spark-type synthetic jet exciter based on an electromagnetic valve and a control method thereof. Background technique [0002] Jet flow is a flow phenomenon in which fluid is ejected into another fluid domain driven by pressure. Jet flow has been proven to have good effects in enhancing heat transfer, enhancing mixing, delaying boundary layer separation and fluid control. This makes the jet flow widely used in many technical fields such as fluid mechanical water pumps, steam pumps, ventilators, chemical equipment and jet aircraft. [0003] Jet can be divided into continuous jet and pulsating jet. For a continuous jet, the flow field parameters at any position in the flow field do not change with time. The pulse jet is a device (such as a solenoid valve, a rotary valve) where the fluid flows through a device...
Claims
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IPC IPC(8): B64C21/04
CPCB64C21/04B64C2230/16
Inventor 吕元伟张靖周单勇谭晓茗
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS