An experimental setup for rotary airfoil equipment

An experimental device and technology of rotating airfoil, applied in the field of rotating mechanical equipment, can solve problems such as lack of blade boundary layer theory, achieve the effect of avoiding experimental errors and meeting experimental requirements

Active Publication Date: 2018-06-26
嘉兴芸诗娇电子商务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional optimization method has great limitations due to the lack of blade boundary layer theory, and the new optimization method must be supported by theory

Method used

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  • An experimental setup for rotary airfoil equipment
  • An experimental setup for rotary airfoil equipment
  • An experimental setup for rotary airfoil equipment

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 experimental device related to rotary airfoil equipment, the device includes a water tank, a fixed support, a rotating structure, a main disk and a detachable ring; the fixed support is separated from the water tank, and the rotating structure is located on the fixed support; the experiment The device can conduct experimental observations on the rotation effect of the airfoil, and provide experimental support for the theoretical research on the airfoil rotation boundary layer, which is very beneficial for basic theoretical research. The experimental device can realize the experimental research of the airfoil at different speeds by adjusting the motor speed. Different airfoils can be replaced according to the research needs, and the angle of attack of the airfoil and the radius of blade rotation can be adjusted according to different experimental research needs. The distance between the discs and the diameter of the discs can adjust the relevant parameters of the experiment to obtain the required experimental environment for different fluid Reynolds numbers.

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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Patent Type & Authority Patents(China)
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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