Control system and control method for plasma excitation for cascade internal flow

A technology of plasma and excitation control, applied in the direction of electric fluid pressure control, program control in sequence/logic controller, components of pumping device for elastic fluid, etc., which can solve the problem of operating efficiency and operating stability Reduce and other problems, to achieve the effect of improving mechanical efficiency, reducing flow loss, and frequency bandwidth

Active Publication Date: 2010-03-10
江苏中国科学院能源动力研究中心 +1
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Problems solved by technology

[0006] In actual operation, according to the actual requirements of the fluid delivery system, the compressor machinery often works under non-design conditions.

Method used

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  • Control system and control method for plasma excitation for cascade internal flow
  • Control system and control method for plasma excitation for cascade internal flow
  • Control system and control method for plasma excitation for cascade internal flow

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Embodiment Construction

[0034] The purpose of the present invention is to adopt the plasma excitation and control system suitable for the internal flow control of the cascade from the perspective of fluid mechanical aerodynamic thermodynamics, plasma physics and control theory, so that the internal flow of the cascade can be separated from loss and mixing. Mixed loss has been at a low level.

[0035] The plasma excitation and control system of the present invention is applicable to the vane-type universal fluid compression mechanical system, and the operation of the entire system is carried out under computer control, by applying appropriate intensity plasma excitation at different positions on the suction surface of the cascade, on the one hand It can inhibit the flow separation on the suction surface of the cascade, and on the other hand, it can improve the flow state in the wake area of ​​the cascade and reduce the flow loss.

[0036] Control method of the present invention comprises the steps:

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Abstract

The invention relates to a control system and a control method for plasma excitation for cascade internal flow, which are performed under the control of a computer. By applying the plasma excitation with appropriate intensity at different positions of a cascade suction surface, on one hand, the system and the method can play a role in inhibiting the flow separation of the cascade suction surface,and on the other hand, the system and the method can improve the flow state of a cascade wake to play a role in reducing the flow loss.

Description

technical field [0001] The invention relates to the technical field of fluid transportation, and is a novel method and device for blade-type fluid machinery to save energy and expand stability, and has application prospects mainly in aerospace, gas turbine power generation, and other industrial supercharging devices. Background technique [0002] In the field of aviation, the fan / compressor is one of the core components of an aviation turbofan engine. To improve the thrust-to-weight ratio and stability of an aviation turbofan engine, it is necessary to improve the stage pressure ratio, stall margin, and overall efficiency of the fan and compressor. Especially in terms of engine variable operating conditions and resistance to inlet distortion, it is even more necessary to adopt new technologies and methods to broaden the stable boundary of engine operation. With the increase of the pressure ratio of the compressor stage, the outlet area of ​​the compressor decreases sharply, ...

Claims

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Application Information

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IPC IPC(8): F15D1/00F04D29/26F04D29/00G05B19/04G05D16/20
Inventor 李钢朱俊强聂超群徐燕骥
Owner 江苏中国科学院能源动力研究中心
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