A fluid mechanics test device

Abstract

The utility model relates to wave making technology field, concretely disclose a kind of fluid mechanics test device, including glass tank, lower support, upper support, upper support is provided with several swing rods, the rotating shaft of the middle section of all swing rods, several telescopic mechanisms of driving swing rod upper end swing.This scheme carries out structural optimization to traditional integrated wave board, and it is disassembled into several small width swing rods.These swing rods are driven under telescopic mechanism, with double movement mode: it can swing to the same direction synchronously, equivalent simulation traditional whole piece wave board's operation effect;Sinusoidal swing or other complex swing track can be executed respectively, to accurately reproduce irregular waveform in this way.

Description

Technical Field

[0001] This utility model belongs to the field of wave generation technology, and specifically relates to a fluid mechanics test device. Background Technology

[0002] In the field of basic scientific research, wave generators are core tools for revealing the physical nature of waves. Their primary significance lies in verifying and developing classical wave theories, such as linear waves, Stokes waves, and solitary waves. By generating idealized waveforms, they provide reliable experimental evidence and a basis for correcting mathematical models, helping scientists reveal the generation mechanisms of waveforms and the laws governing energy transfer in the ocean. These controlled experiments have greatly deepened human understanding of the microscopic dynamics of waves, forming the experimental cornerstone of the development of fluid mechanics theory. Currently, single-plate wave generators cannot generate irregular waves, significantly limiting laboratory experiments. Utility Model Content

[0003] The purpose of this invention is to provide a fluid dynamics testing device that can generate irregular waves.

[0004] To achieve the above objectives, this utility model provides a fluid dynamics testing device, including a glass tank and a lower support for supporting the glass tank. An upper support is provided above the lower support and spans the glass tank. Several pendulum rods are arranged sequentially along the width of the glass tank on the upper support. The bottoms of two adjacent pendulum rods are abutted against each other to push the water to form waves. A pivot is passed through the middle of all the pendulum rods and serves as the swing center. Push-pull rods are hinged to the upper ends of all the pendulum rods. A telescopic mechanism is connected to the upper end of each push-pull rod. The telescopic mechanism changes the tilt state of the pendulum rod by adjusting the push-pull rod to move forward or backward. Several telescopic mechanisms are installed on the upper support.

[0005] As an improvement to the above solution, an elongated hole is provided at the upper end of the swing arm, and the end of the push-pull rod is flexibly connected by a pin within the elongated hole.

[0006] As an improvement to the above solution, the test device also includes a comb tooth support, which is fixed to the upper support. The comb tooth support has several ribs spaced apart on the side facing the rotating shaft. The two ends of the rotating shaft and the area between adjacent swing arms are clamped by the corresponding ribs.

[0007] As an improvement to the above solution, sealing gaskets are provided on both the left and right sides of the swing arm, and the gap between two adjacent swing arms is filled by the sealing gaskets.

[0008] As an improvement to the above solution, a wave-damping baffle is provided behind the swing arm in the glass tank, and the surface of the wave-damping baffle is provided with a number of round holes.

[0009] As an improvement to the above solution, the telescopic mechanism adopts a ball screw linear stepper motor, the screw is connected to the push-pull rod, and the movement of the screw drives the push-pull rod to move forward or backward; multiple telescopic mechanisms are electrically connected to a controller, which is used to control the start or stop of the telescopic mechanism.

[0010] This invention offers the following advantages: The design optimizes the traditional integrated wave-pushing plate by disassembling it into several small-width swing arms. Driven by a telescopic mechanism, these swing arms possess dual motion modes: they can swing synchronously in the same direction, effectively simulating the operation of a traditional single wave-pushing plate; alternatively, they can each execute sinusoidal swings or other complex swing trajectories, thereby accurately reproducing irregular waveforms. To enhance the structural strength of the multiple swing arms, this design adds a comb-tooth bracket to support the rotating shaft, effectively suppressing bending deformation of the shaft and ensuring the accuracy and stability of the multi-swing arm motion. Attached Figure Description

[0011] Figure 1 This is a perspective view of the test apparatus in one embodiment;

[0012] Figure 2 This is a cross-sectional view of the test apparatus in one embodiment.

[0013] Explanation of reference numerals in the attached drawings: 11. Glass tank; 12. Lower support; 13. Upper support; 14. Comb tooth support; 21. Swing rod; 22. Rotating shaft; 23. Push-pull rod; 24. Telescopic mechanism; 30. Wave-damping baffle. Detailed Implementation

[0014] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0015] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.

[0017] Reference Figure 1 and Figure 2 This utility model discloses a fluid dynamics experimental device, including a glass tank 11 and a lower support 12 supporting the glass tank 11. An upper support 13 is arranged above the lower support 12 and spans the glass tank 11. Several pendulum rods 21 are arranged sequentially along the width direction of the glass tank 11 on the upper support 13. The bottoms of two adjacent pendulum rods 21 are abutted against each other to push the water to form waves. A pivot 22 passes through the middle of all the pendulum rods 21 and serves as the swing center. Push-pull rods 23 are hinged to the upper ends of all the pendulum rods 21. A telescopic mechanism 24 is connected to the upper end of each push-pull rod 23. The telescopic mechanism 24 changes the tilt state of the pendulum rods 21 by adjusting the push-pull rods 23 to move forward and backward. Several telescopic mechanisms 24 are installed on the upper support 13.

[0018] As an improvement to the above solution, the upper end of the swing rod 21 is provided with an elongated hole, and the end of the push-pull rod 23 is T-shaped. The end of the push-pull rod 23 is engaged with the elongated holes on the left and right sides by a pin, thereby achieving a flexible connection. Figure 2 As shown, the lower end of the swing arm 21 is fan-shaped and the upper end is rod-shaped.

[0019] As an improvement to the above solution, the test device further includes a comb tooth support 14, which is fixed to the upper support 13. The comb tooth support 14 has several ribs spaced apart on the side facing the rotating shaft 22. The two ends of the rotating shaft 22 and the area between adjacent swing arms 21 are clamped by corresponding ribs. The bottom of the comb tooth support 14 is connected to a connecting rod below the upper support 13 for fixation.

[0020] As an improvement to the above solution, sealing gaskets are provided on both the left and right sides of the swing rod 21, and the gap between two adjacent swing rods 21 is filled by the sealing gaskets. The leftmost and rightmost sealing gaskets are in contact with the inner wall of the glass groove 11. This solution prevents water from flowing out through the gaps.

[0021] As an improvement to the above solution, a wave-damping baffle 30 is provided behind the swing arm 21 in the glass tank 11, and the surface of the wave-damping baffle 30 is provided with a number of round holes.

[0022] As an improvement to the above solution, the telescopic mechanism 24 adopts a ball screw linear stepper motor, the screw is connected to the push-pull rod 23, and the movement of the screw drives the push-pull rod 23 to move forward or backward; multiple telescopic mechanisms 24 are electrically connected to a controller, and one controller is used to control the start or stop of the telescopic mechanism 24.

[0023] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A fluid dynamics testing apparatus, comprising a glass tank and a lower support for supporting the glass tank, characterized in that: An upper support is provided above the lower support, and the upper support spans the glass trough. Several swing rods are arranged sequentially along the width of the glass trough on the upper support. The bottoms of two adjacent swing rods are abutted against each other to push the water to form waves. A pivot is passed through the middle of all the swing rods and serves as the swing center. Push-pull rods are hinged to the upper ends of all the swing rods. A telescopic mechanism is connected to the upper end of each push-pull rod. The telescopic mechanism changes the tilt state of the swing rod by adjusting the push-pull rod to move forward or backward. Several telescopic mechanisms are installed on the upper support.

2. The fluid dynamics testing apparatus according to claim 1, characterized in that: The upper end of the swing arm is provided with an elongated hole, and the end of the push-pull rod is flexibly connected by a pin within the elongated hole.

3. The fluid dynamics testing apparatus according to claim 2, characterized in that: The test apparatus also includes a comb tooth support, which is fixed to the upper support. The comb tooth support has several ribs spaced apart on the side facing the rotating shaft. The two ends of the rotating shaft and the area between adjacent swing arms are clamped by the corresponding ribs.

4. The fluid dynamics testing apparatus according to claim 3, characterized in that: Sealing gaskets are provided on both the left and right sides of the swing arm, and the gap between two adjacent swing arms is filled by the sealing gaskets.

5. The fluid dynamics testing apparatus according to claim 1, characterized in that: The glass trough is provided with a wave-damping baffle behind the swing arm, and the surface of the wave-damping baffle is provided with a number of round holes.

6. The fluid dynamics testing apparatus according to claim 1, characterized in that: The telescopic mechanism uses a ball screw linear stepper motor, with the screw connected to the push-pull rod. When the screw moves, it drives the push-pull rod to move forward or backward. Multiple telescopic mechanisms are electrically connected to a controller, which is used to control the start or stop of the telescopic mechanism.

Images