Experiment apparatus for rotary aerofoil device

An experimental device and a technology for rotating airfoils, which are applied in the field of rotating machinery and equipment, can solve problems such as the lack of blade boundary layer theory, and achieve the effect of avoiding experimental errors and meeting experimental requirements.

Active Publication Date: 2016-07-20
嘉兴芸诗娇电子商务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional optimization method has great limitations due to the lack of bl...

Method used

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  • Experiment apparatus for rotary aerofoil device
  • Experiment apparatus for rotary aerofoil device
  • Experiment apparatus for rotary aerofoil device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] By adjusting the rotation speed of the wing and the rotation angle of the wing, the device cooperates with PIV technology to observe and study the flow field near the rotating airfoil from multiple angles, including the study of its boundary layer.

[0027] Assuming that the experimental device is in a constant temperature environment, when the fluid in the tank is determined, the density ρ and dynamic viscosity coefficient μ of the fluid are constant values. When the airfoil used in the experiment is determined, the chord length d of the airfoil is also a constant value. At this time, the Reynolds number Re is only determined by the fluid velocity v, and the fluid velocity v is related to the rotation speed of the airfoil. Due to the no-slip boundary condition of the airfoil wall, in this experiment it can be considered that the fluid velocity at the airfoil wall is Linear speed of type rotation. Assuming that the experimental device is in a constant temperature envir...

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PUM

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Abstract

The invention discloses an experiment apparatus for a rotary aerofoil device. The experiment apparatus comprises a water tank, a fixed support, a rotary structure, a main disc and a detachable circular ring, wherein the fixed support is separated from the water tank, and the rotary structure is positioned on the fixed support. The experiment apparatus allows experiment and observation of the rotation effect of an aerofoil, provides experimental support for theoretical research of a rotation boundary layer of the aerofoil, and is beneficial to basic theoretical research. Experiment and research of an aerofoil under different rotating speed can be realized by adjusting the rotating speed of a motor, different aerofoils can be changed for different research needs, and the attack angle of the aerofoil and rotary radius of blades can be adjusted according to different research needs. The distance between upper and lower discs and the disc diameter can be changed, and experiment related parameters can be adjusted to obtain experiment environments with different fluid Reynolds numbers as needed.

Description

technical field [0001] The invention belongs to the field of rotating machinery equipment, and relates to the design of rotating machinery blades, in particular to a rotating airfoil experimental device. Background technique [0002] As a kind of general machinery, rotating machinery is widely used in industries such as steel, cement, petroleum and petrochemical, and building ventilation and drainage. It is used in a huge amount and consumes a lot of energy. Therefore, improving the efficiency of rotating machinery can obtain very considerable economic and social benefits. [0003] For the flow motion in the impeller, it is convenient to use the rotating coordinate system for the study. The rotating coordinate system is related to the inertia, and the Coriolis force term and the centripetal acceleration term are added to the basic equation of fixed axis and constant speed. It is more difficult to directly study the impeller as a whole. [0004] Traditional research method...

Claims

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Application Information

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IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 窦华书李哲弘杨徽许文倩
Owner 嘉兴芸诗娇电子商务有限公司
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