Design method and device for self-adaptive gap adjustment variable camber guide vane

A design method and self-adaptive technology, applied in design optimization/simulation, special data processing applications, geometric CAD, etc., can solve problems such as rear leaf separation, limit the use range of variable camber guide vanes, etc., and reduce the total pressure loss coefficient , Widen the range of available working angles, and widen the range of available corners

Pending Publication Date: 2022-05-06
AIR FORCE UNIV PLA
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the actual use of the variable curvature guide vane, when the rotation angle is too large, the rear blade will be seriously separated, which also limits the scope of use of the variable curvature guide vane, and it is urgent to obtain a wider adjustment through a reasonable design method range of variable camber guide vanes

Method used

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  • Design method and device for self-adaptive gap adjustment variable camber guide vane
  • Design method and device for self-adaptive gap adjustment variable camber guide vane
  • Design method and device for self-adaptive gap adjustment variable camber guide vane

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Embodiment Construction

[0057] Embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein; A more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes, and are not intended to limit the protection scope of the present invention.

[0058] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the art to which this application belongs.

[0059] Such as figure 1 As shown, the self-adaptive gap adjustment variable camber inlet guide vane design method of the present inv...

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Abstract

The invention discloses a design method for a variable-camber guide vane with a self-adaptive gap adjustment function. The design method comprises the steps that firstly, the inlet incoming flow Mach number and the design outlet airflow angle of design points at different spanwise positions of an inlet guide vane are determined; 2, determining the chord length Cfb of the front blade; step 3, determining the maximum thickness Tmax; 4, determining a blade profile; step 5, determining a seam; step 6, selecting the position of the rotating shaft; step 7, selecting a proper position of the rotating shaft; and step 8, carrying out spanwise stacking on the element blade profiles obtained according to the step 1 to the step 7 at different heights along the position of the rotating shaft to form an entity of the blade. The invention further discloses a variable-camber guide vane device capable of achieving self-adaptive gap adjustment by means of the method. According to the designed guide vane device, the working range of the variable camber blades is expanded, and under the same working conditions, the backward angle is reduced, and the total pressure loss coefficient is reduced.

Description

technical field [0001] The invention relates to the technical field of compressor guide vanes, in particular to a design method and device for adaptive gap adjustment variable camber guide vanes. Background technique [0002] For most ground gas turbines and compressors for aero engines, they are equipped with inlet guide vanes to create the desired direction of inlet flow. When the adjustable inlet guide vane is working, as the speed of the compressor decreases, it will rotate to adjust the installation angle of the vane to provide the required outlet airflow angle. At this time, the angle of attack of the guide vane will increase greatly. The angle of attack will cause the airflow to pass through the blade to produce a large total pressure loss and boundary layer separation. As a new form of adjustable guide vane, the variable camber guide vane greatly broadens the working range of the guide vane. In 1968, B.A.JONES and D.LWRIGHT of the NASA laboratory in the United Stat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/15G06F30/28G06F111/10
CPCG06F30/15G06F30/28G06F2111/10
Inventor 尉洋于锦禄张小博王志多
Owner AIR FORCE UNIV PLA
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