Wind tunnel cloud and mist uniformity detection device

Abstract

The invention provides a wind tunnel cloud and mist uniformity detection device, and belongs to the technical field of wind tunnel tests, and the device specifically comprises a support which is used for being installed in a wind tunnel test section, the support is provided with a plurality of water collection pipelines, and the length direction of the water collection pipelines is parallel to the length direction of the wind tunnel test section; the water collectors are installed on the leeward side face of the support, the water collectors correspond to the water collecting pipelines one to one, inlets of the water collectors are communicated with the leeward ends of the water collecting pipelines, and liquid drops in a wind tunnel test section enter the water collectors after passing through the water collecting pipelines; and the detection assembly is mounted in the water collector and is used for detecting the water quantity in the water collector. According to the processing scheme, the accuracy of wind tunnel cloud and mist uniformity detection is improved, and meanwhile electric energy needed by detection is saved.

Description

Technical Field

[0001] The present application relates to the field of wind tunnel testing, and in particular to a wind tunnel cloud and fog uniformity detection device. Background Art

[0002] Under ideal conditions, water droplets in the icing wind tunnel and rain wind tunnel should be evenly distributed in the horizontal and vertical directions of the wind tunnel test section. However, due to the influence of airflow and nozzle installation position, the droplet distribution in the cross section of the test section may change.

[0003] The uniformity assessment of the cloud can timely adjust the nozzle working configuration and determine the number of nozzles working, thereby improving the uniformity range of the cloud in the test, reducing the difference in droplet distribution in the cross section of the test section, and improving the validity of the test conclusions.

[0004] The existing ice wind tunnel uniformity test uses a grid device to spray at low temperature and evaluates the cloud uniformity by measuring the thickness of ice on the grid surface. The main problems of this method are:

[0005] 1. The test must be carried out in a refrigerated wind tunnel. For a rain wind tunnel, the working temperature is above 0°C, so this method cannot be used to evaluate the uniformity of clouds and fog.

[0006] 2. During the measurement process, uneven ice density caused by melting of accumulated ice, clear ice / frost ice will also cause measurement errors;

[0007] 3. The refrigeration process is time-consuming and power-consuming, and the measurement electricity and labor costs are high. Summary of the invention

[0008] In view of this, the present application provides a wind tunnel cloud and fog uniformity detection device, which solves the problems in the prior art and improves the accuracy of wind tunnel cloud and fog uniformity detection.

[0009] The wind tunnel cloud and fog uniformity detection device provided in this application adopts the following technical solution:

[0010] A wind tunnel cloud and fog uniformity detection device, comprising:

[0011] A bracket, used for installation in a wind tunnel test section, the bracket being provided with a plurality of water collecting pipes, the length direction of the water collecting pipes being parallel to the length direction of the wind tunnel test section;

[0012] A plurality of water collectors are installed on the leeward side of the bracket, the water collectors correspond to the water collecting pipelines one by one, the inlet of the water collectors is connected to the leeward end of the water collecting pipeline, and the droplets in the wind tunnel test section enter the water collectors after passing through the water collecting pipeline;

[0013] The detection component is installed in the water collector and is used to detect the amount of water in the water collector.

[0014] Optionally, the inner wall of the windward end of the water collecting pipeline is a conical structure, and the large-diameter end of the conical structure is the windward end.

[0015] Optionally, the bracket is a grille bracket, and a water collection channel is provided at the grid intersection of the grille bracket. The length direction of the water collection channel is parallel to the length direction of the wind tunnel test section, and the water collection channel runs through the windward side and the leeward side of the grille bracket, and the water collection channel serves as the water collection pipeline.

[0016] Optionally, a water collection channel is provided at each grid intersection of the grid support.

[0017] Optionally, the outer edge profile of the grid support is the same as the cross-section of the wind tunnel test section.

[0018] Optionally, the detection component is a liquid level sensor, and the liquid level sensor is used to detect the liquid level in the water collector.

[0019] In summary, this application includes the following beneficial technical effects:

[0020] The device of the present application can measure the uniformity of clouds and mist at room temperature and can be used in a non-refrigerated rain wind tunnel; no refrigeration is required during measurement, saving electricity and testing time.

[0021] The data logger provides real-time and intuitive feedback of the measurement results, allowing the nozzle configuration and water flow rate to be adjusted in real time during the measurement process. The measurement results are directly output digitally, saving manual input of ice accumulation measurement values ​​and calculation processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the grid support of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the water collection pipeline, water collector, liquid level sensor and cable of this application.

[0025] Explanation of the reference numerals: 1. Grid support; 2. Water collecting pipeline; 3. Water collector; 4. Liquid level sensor; 5. Cable. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0027] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0028] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0029] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0030] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0031] An embodiment of the present application provides a wind tunnel cloud and fog uniformity detection device.

[0032] like Figure 1 and Figure 2As shown, a wind tunnel cloud and fog uniformity detection device comprises: a bracket for installation in a wind tunnel test section, the bracket is provided with a plurality of water collecting pipes 2, the length direction of the water collecting pipes 2 is parallel to the length direction of the wind tunnel test section; a plurality of water collectors 3 are installed on the leeward side of the bracket, the water collectors 3 correspond to the water collecting pipes 2 one by one, the inlet of the water collector 3 is connected to the leeward end of the water collecting pipe 2, and the droplets in the wind tunnel test section enter the water collector 3 after passing through the water collecting pipe 2; a detection component is installed in the water collector 3, and is used to detect the amount of water in the water collector 3.

[0033] During measurement, the liquid enters the water collector 3 through the water collection pipeline 2, and the detection component outputs the water volume in the water collector 3. By comparing the water volume data output by the detection component, the uniformity of the cloud and fog can be evaluated, and the water content of the test section can be calculated.

[0034] The inner wall of the windward end of the water collecting pipe 2 is a conical structure, and the large diameter end of the conical structure is the windward end. Increasing the number of droplets collected by the water collecting pipe 2 can reduce detection errors.

[0035] The support is a grille support 1, and the grilles include a number of cross bars and vertical bars that are crossed and arranged together. The grid intersections of the grille support 1 are provided with water collection channels. The length direction of the water collection channel is parallel to the length direction of the wind tunnel test section, and the water collection channel runs through the windward side and the leeward side of the grille support 1. The water collection channel serves as the water collection pipeline 2.

[0036] A water collection channel is provided at each grid intersection of the grid support 1. As many water collection channels as possible are arranged to reduce detection errors.

[0037] The outer edge profile of the grid support 1 is the same as the cross section of the wind tunnel test section. The grid support 1 is made to cover the cross section of the entire wind tunnel test section as much as possible to ensure that water mobile phone channels can be arranged at all positions of the wind tunnel test section.

[0038] The detection component is a liquid level sensor 4, which is used to detect the liquid level in the water collector 3. The data of the liquid level sensor 4 is connected to the data recorder through the cable 5. The liquid level in the water collector 3 reflects the amount of water in the water collector 3, and the liquid level signal is processed into a digital signal using the liquid level sensor 4 and the data recorder.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A wind tunnel fog uniformity detection device, characterized in that: include: A bracket, used for installation in a wind tunnel test section, the bracket being provided with a plurality of water collecting pipelines (2), the length direction of the water collecting pipelines (2) being parallel to the length direction of the wind tunnel test section; A plurality of water collectors (3) are installed on the leeward side of the bracket, the water collectors (3) and the water collecting pipelines (2) correspond one to one, the inlet of the water collector (3) is connected to the leeward end of the water collecting pipeline (2), and the liquid droplets in the wind tunnel test section pass through the water collecting pipeline (2) and enter the water collector (3); A detection component is installed in the water collector (3) and is used to detect the amount of water in the water collector (3).

2. The wind tunnel cloud and fog uniformity detection device according to claim 1, characterized in that: The inner wall of the windward end of the water collecting pipeline (2) is a conical structure, and the large-diameter end of the conical structure is the windward end.

3. The wind tunnel fog uniformity detection device according to claim 1, characterized in that: The support is a grid support (1), and a water collection channel is provided at the grid intersection of the grid support (1). The length direction of the water collection channel is parallel to the length direction of the wind tunnel test section, and the water collection channel runs through the windward side and the leeward side of the grid support (1). The water collection channel serves as the water collection pipeline (2).

4. The wind tunnel cloud and fog uniformity detection device according to claim 3, characterized in that: A water collection channel is provided at each grid intersection of the grid support (1).

5. The wind tunnel cloud and fog uniformity detection device according to claim 3, characterized in that: The outer edge profile of the grid support (1) is the same as the cross section of the wind tunnel test section.

6. The wind tunnel cloud and fog uniformity detection device according to claim 1, characterized in that: The detection component is a liquid level sensor (4), and the liquid level sensor (4) is used to detect the height of the liquid level in the water collector (3).

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