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CN-121977782-A - Inner wall plate structure of wind tunnel full-mode test section

CN121977782ACN 121977782 ACN121977782 ACN 121977782ACN-121977782-A

Abstract

The application discloses an inner wall plate structure of a wind tunnel full-mold test section, which is characterized in that a front section upper wall orifice plate and a front section lower wall orifice plate are fixedly arranged on a frame, a front section side wall orifice plate positioned on the left side and the right side is arranged between the front section upper wall orifice plate and the front section lower wall orifice plate, the front section side wall orifice plate is movably arranged on the frame along the horizontal direction, a rear section upper wall solid plate and a rear section lower wall solid plate are fixedly arranged on the frame, a rear section side wall adjusting plate positioned on the left side and the right side is arranged between the rear section upper wall solid plate and the rear section lower wall solid plate, the rear end of the rear section side wall adjusting plate is hinged on the frame, an injection slot is formed between the front end of the rear section side wall adjusting plate and the rear end of the front section side wall orifice plate, an arc-shaped side wall upper wall orifice plate is arranged between the front section upper wall orifice plate and the rear section upper wall solid plate, an arc-shaped side wall orifice plate is arranged between the front section lower wall orifice plate and the rear section lower wall solid plate, and the side wall orifice plate is rotatably arranged on the frame along a side vertical axis. The application has the advantages of dynamically adapting to the requirements of multiple working conditions and improving the flow field control precision.

Inventors

  • HE DENG
  • YE WEI
  • DENG LUJUN
  • LI JUNHAO
  • FU YONG
  • LIU ZEYU
  • LIU JUNYAN
  • LIU DAWEI
  • ZHENG XIAODONG
  • LI YUANYANG
  • LIU GUANGYUAN
  • HUANG XIAOFENG
  • YANG KEPENG
  • HONG SHAOZUN
  • WU LEI

Assignees

  • 中国空气动力研究与发展中心高速空气动力研究所

Dates

Publication Date
20260505
Application Date
20260401

Claims (10)

  1. 1. A wall plate structure in a full-mold test section of a wind tunnel comprises a frame (1) and is characterized in that a front-section upper wall hole plate (2) and a front-section lower wall hole plate (3) are fixedly arranged on the frame (1), a front-section side wall hole plate (4) positioned on the left side and the right side is arranged between the front-section upper wall hole plate (2) and the front-section lower wall hole plate (3), the front-section side wall hole plate (4) is movably arranged on the frame (1) along the horizontal direction, a rear-section upper wall solid plate (7) and a rear-section lower wall solid plate (8) are fixedly arranged on the frame (1), a rear-section side wall adjusting plate (9) positioned on the left side and the right side is arranged between the rear-section upper wall solid plate (7) and the rear-section lower wall solid plate (8), the rear end of the rear-section side wall adjusting plate (9) is hinged on the frame (1), an injection slot is formed between the front end of the rear-section side wall hole plate (2) and the rear end of the front-section side wall hole plate (4), an upper wall plate (5) is arranged between the front-side wall plate (2) and the rear-section upper wall solid plate (7), and an arc-shaped wall plate (6) is arranged between the front-section upper wall plate (6) and the arc-shaped upper wall plate (6).
  2. 2. The wind tunnel full-mold test section inner wall plate structure according to claim 1, wherein the front section upper wall orifice plate (2), the front section lower wall orifice plate (3), the sideslip upper wall orifice plate (5) and the sideslip lower wall orifice plate (6) are horizontally arranged, and the rear section upper wall solid plate (7), the rear section lower wall solid plate (8) and the rear section side wall adjusting plate (9) are obliquely arranged and form a flaring structure.
  3. 3. The wind tunnel full-mold test section inner wall plate structure according to claim 1, wherein the front section side wall pore plate (4) is arranged on the frame (1) through a suspension supporting mechanism (10), and the suspension supporting mechanism (10) has the motion functions of X-direction sliding, Y-direction sliding and vertical axis rotation.
  4. 4. The wind tunnel full-mold test section inner wall plate structure according to claim 1 or 3 is characterized in that an auxiliary supporting mechanism (11) for supporting the horizontal movement of the front section side wall pore plate (4) is arranged on the frame (1), and the auxiliary supporting mechanism (11) is a radial spherical plain bearing.
  5. 5. The wind tunnel full-mold test section inner wall plate structure according to claim 1 or 3 is characterized in that a fixed supporting mechanism (12) is arranged on the front section side wall pore plate (4), the fixed supporting mechanism (12) can be adjustably locked on the frame (1), and the fixed supporting mechanism (12) is a fixed supporting seat.
  6. 6. The wind tunnel full-mold test section inner wall plate structure according to claim 1, wherein the sideslip upper wall orifice plate (5) and the sideslip lower wall orifice plate (6) are both arranged on a sideslip mechanism, and the sideslip mechanism is rotatably and movably arranged on the frame (1) along a sideslip vertical axis.
  7. 7. The wind tunnel full-mold test section inner wall plate structure according to claim 1, wherein the rear section side wall adjusting plate (9) is arranged on the frame (1) through an adjusting and supporting mechanism (13), and the adjusting and supporting mechanism (13) is a spherical hinge type telescopic sleeve.
  8. 8. The wind tunnel full-mold test section inner wall plate structure according to claim 1 or 7 is characterized in that an auxiliary supporting wheel mechanism (14) is arranged between the rear section side wall adjusting plate (9) and the frame (1), and the auxiliary supporting wheel mechanism (14) is a supporting wheel slide rail mechanism.
  9. 9. The wind tunnel full-mold test section inner wall plate structure according to claim 1 or 7, wherein the rear section side wall adjusting plate (9) is hinged with the frame (1) through a hinge (15).
  10. 10. The wind tunnel full-mold test section inner wall plate structure according to claim 1, wherein an expansion angle adjusting mechanism (16) is arranged between the front section side wall orifice plate (4) and the frame (1), an injection slit adjusting mechanism (17) is arranged between the rear section side wall adjusting plate (9) and the frame (1), and the expansion angle adjusting mechanism (16) and the injection slit adjusting mechanism (17) are telescopic.

Description

Inner wall plate structure of wind tunnel full-mode test section Technical Field The application belongs to the technical field of wind tunnels, and particularly relates to an inner wall plate structure of a full-mode test section of a wind tunnel. Background The inner wall plate of the wind tunnel is used as a core structural component of aerodynamic experimental equipment, and the design principle is based on a boundary layer control theory and an acoustic interference principle in fluid mechanics. The inner wall plate guides the air flow to flow uniformly along the wall surface through a specific geometric profile (such as a smooth curved surface, a porous or a sawtooth structure) to inhibit boundary layer separation and turbulent flow pulsation, and meanwhile, the surface material and the structure can selectively absorb or scatter acoustic energy to reduce air flow noise. Functionally, the inner wall plate is mainly used for optimizing the quality of air flow in the wind tunnel and ensuring the uniformity, stability and low noise characteristic of the flow field, so that the accuracy and repeatability of model test data are improved, and the inner wall plate is a key basic member for ensuring the reliability of wind tunnel test. In the prior art, most of wind tunnel inner wall plates are rigid fixed structures, and the geometric shapes, material properties and surface characteristics of the wind tunnel inner wall plates are not adjustable after the wind tunnel inner wall plates are manufactured. The limitation causes difficulty in adapting to the multi-working condition experiment requirement that the low-speed wind tunnel needs an inner wall plate to inhibit laminar flow separation, the high-speed wind tunnel needs to weaken shock wave interference through structural optimization, the inner wall plate with a fixed form cannot be dynamically matched with the air flow characteristics under different Mach numbers and Reynolds numbers, in addition, when the multi-working condition operation is carried out, the problems of air flow separation point deviation, noise spectrum change and the like are aggravated, the wall surface of the fixed structure is easy to cause local air flow disturbance, the experimental data discreteness is increased, and the overall operation efficiency and the equipment life of the wind tunnel are even influenced. Disclosure of Invention The application aims to provide an inner wall plate structure of a wind tunnel full-mode test section, which solves the problem that the existing inner wall plate of the wind tunnel cannot be regulated and controlled. The aim of the application is achieved by the following technical scheme: The utility model provides a wallboard structure in wind-tunnel full-mould test section, including the frame, the fixed anterior segment upper wall orifice plate that is equipped with on the frame and anterior segment lower wall orifice plate, be equipped with the anterior segment lateral wall orifice plate that is located the left and right sides between anterior segment upper wall orifice plate and the anterior segment lower wall orifice plate, anterior segment lateral wall orifice plate is established on the frame along the horizontal direction activity, the fixed posterior segment upper wall real board that is equipped with on the frame and posterior segment lower wall real board that is equipped with, be equipped with the posterior segment lateral wall regulating plate that is located the left and right sides between posterior segment upper wall real board and the posterior segment lower wall real board, the rear end hinge of posterior segment lateral wall regulating plate is on the frame, form the injection seam between the front end of posterior segment lateral wall regulating plate and the rear end of anterior segment lateral wall orifice plate, be equipped with curved sideslip upper wall orifice plate between anterior segment upper wall orifice plate and the posterior segment upper wall real board, be equipped with curved sideslip lower wall orifice plate between anterior segment lower wall orifice plate and the posterior segment lower wall real board, sideslip orifice plate and sideslip wall orifice plate are established on the frame along sideslip vertical axis rotation activity. Further, anterior segment upper wall orifice plate, anterior segment lower wall orifice plate, sideslip upper wall orifice plate and sideslip lower wall orifice plate all be the level arrangement, posterior segment upper wall solid board, posterior segment lower wall solid board and posterior segment lateral wall regulating plate are the slope and arrange and form flaring structure. Further, the front section side wall pore plate is arranged on the frame through a suspension supporting mechanism, and the suspension supporting mechanism has the movement functions of X-direction sliding, Y-direction sliding and vertical axis rotation. Further, an auxiliary supporting mechanism