JP3285781B2 - Terrain model wind tunnel test method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terrain model wind tunnel test method and apparatus for investigating a wind speed distribution and a concentration distribution on a terrain and obtaining data necessary for predicting a wind condition and a smoke concentration. .

[0002]

2. Description of the Related Art Conventionally, a terrain model used in a terrain model wind tunnel test apparatus for investigating a wind speed distribution and a concentration distribution on the terrain is first manufactured in a model factory, and then the terrain model manufactured in the model factory is obtained. Trucks were used to transport the model from the model factory to the wind tunnel test facility, and the transported terrain model was installed in the wind tunnel by means of a loading device such as a crane or manually.

[0003]

The labor and time required for transporting the terrain model and mounting it in the wind tunnel are enormous.
This contributes to the high cost of wind tunnel testing. Care must also be taken to ensure that the terrain model can withstand the various impacts of transport, loading and installation, and if the terrain model needs to be re-tested and used again, You have to save the terrain model and reuse it, or recreate the terrain model each time,
A storage place is required to store used terrain models, and when recreating terrain models, terrain models must be recreated from the beginning using general-purpose devices, In positioning the measurement position in the height direction and the horizontal direction based on the position on the surface of the terrain model, skill and a great deal of time are required.

[0004] Therefore, the present invention saves time and labor required for transporting a manufactured terrain model to a location where the wind tunnel is installed, carrying the terrain model into the wind tunnel, and installing the model in the wind tunnel. As a result, the construction period from the production of the terrain model to the start of the test can be greatly reduced, and inexpensive materials can be adopted as the terrain model material. When the need arises, the topographic model can be reproduced with high accuracy even when recreating the topographic model, and the height direction and horizontal direction based on the position on the surface of the topographic model at the time of production processing It is an object of the present invention to provide a terrain model wind tunnel test method and apparatus which can quickly and accurately determine the measurement position.

[0005]

According to the terrain model wind tunnel test method of the present invention, a terrain model wind tunnel test wind tunnel for investigating, for example, wind speed distribution and concentration distribution on the terrain is provided. Installing a terrain model material block made of a material that is easy to cut, such as wood, styrofoam, paraffin, etc., at an arbitrary position on the terrain model material block at least under computer control. In the traverse device which can be moved to, a processing means for producing the terrain model by processing the terrain model material block and a wind tunnel test measuring instrument are attached, and the processing means is mounted on the traverse device. Entering data on the contour of the terrain, such as contour data of the terrain, into the computer, Forming the terrain model by processing the terrain model material block according to the data on the terrain contour under the control of the terrain by the processing means, and forming the terrain model by the processing means. Retracting the processing means to the non-processing position and setting the wind tunnel test measuring instrument at the measurement position on the traverse device, and after setting the wind tunnel test measuring instrument at the measurement position on the traverse device, Performing a terrain model wind tunnel test by sending air to the terrain model wind tunnel test wind tunnel, wherein the terrain model production and the terrain model wind tunnel test are performed consistently in the same wind tunnel.

According to the terrain model wind tunnel test apparatus of the present invention, the terrain model wind tunnel test wind tunnel for investigating, for example, wind speed distribution and concentration distribution on the terrain is made of a material which can be easily processed at the terrain model installation position. A terrain model material block fixing means for detachably fixing the terrain model material block,
A traverse device movable to at least an arbitrary position on the terrain model material block under computer control; and the terrain model processing the terrain model material block on the traverse device under computer control. And a wind tunnel test measuring instrument for acquiring data by a wind tunnel test in the presence of the topographical model at the topographical model installation position, for example, each of which is detachably supported. And a support means on the traverse device for selectively moving the wind tunnel test meter between an operative position and a non-operative position.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 (1) is a vertical sectional side view of an essential part of the terrain model wind tunnel test apparatus, showing a state in which a terrain model material block is detachably fixed to the terrain model wind tunnel test apparatus according to one embodiment of the present invention. (2) is an enlarged perspective view of a main part of FIG. 1 (1), FIG. 2 is a vertical sectional side view of a main part of the terrain model wind tunnel testing device, showing a state of the terrain model being manufactured by the terrain model wind tunnel testing device of FIG. FIG. 3A shows a state in which a wind tunnel test is being performed using a terrain model manufactured in the wind tunnel of the terrain model wind tunnel test apparatus of FIG. FIG. 3 (2) is an enlarged perspective view of a main part of FIG. 3 (1).

In FIG. 1, a wind tunnel 1 for a terrain model wind tunnel test is shown.
Has a terrain model material block fixing means for detachably fixing a terrain model material block 2 made of a material that is easy to process at the terrain model installation position, and has a computer 6, a computing unit 7, and a controller. A traverse device 3 which can be moved to at least an arbitrary position on the terrain model material block 2 under the computer control performed by the computer 8. On the traverse device 3, processing means 4 such as a cutting device for producing a terrain model by performing processing such as cutting on the terrain model material block 2 and a wind tunnel test for acquiring data by a wind tunnel test The measuring device 5 is detachably supported, and the processing means 4 and the measuring device 5 for wind tunnel test are provided.
There is provided a support means 3a capable of selectively moving the actuator between the operating position and the inoperative position. The operation of the support means 3a, the processing means 4 and the measuring instrument 5 for wind tunnel test
It is controlled by the computer 6, the arithmetic unit 7 and the controller 8 so as to operate in cooperation with the movement of the traverse device 3.

As the material of the terrain model material block 2 which is detachably fixedly installed at the terrain model installation position in the wind tunnel 1, for example, wood, styrene foam, paraffin, or the like, which is easy to process and is inexpensive, may be used. it can. A transverse girder 10 that supports a trolley 11 that supports the traverse device 3 runs on a rail 9 that extends vertically in the ceiling of the wind tunnel 1 and extends vertically with respect to the wind tunnel 1. The trolley 11 can move and the trolley 11 travels on the cross beam 10 in a direction transverse to the wind tunnel 1 while supporting the traverse device 3. In this way, the traverse device 3 can move vertically with respect to the wind tunnel 1 and can also move transversely with respect to the wind tunnel 1 while being suspended and supported by the cart 11. The longitudinal movement of the cross beam 10 along the rail 9 with respect to the wind tunnel 1 and the transverse movement of the trolley 11 along the cross beam 10 with respect to the wind tunnel 1 are controlled by a computer 6, a computing unit 7 and a controller 8, respectively. This is performed by driving rotation of a stepping motor.

The cart 11 supports the upper end of the vertical guide rod 12 in a fixed manner and supports the upper end of the vertical rotary screw 13 parallel to the guide rod 12 with the computer 6, the arithmetic unit 7, and the It is supported so that it can be rotationally driven by a stepping motor controlled by the controller 8. The traverse device 3 is screwed to the rotating screw 13 and is held so as to be vertically movable along the guide rod 12. As the rotating screw 13 is driven to rotate, the traverse device 3 moves along the guide rod 12. To move up and down.

The traverse device 3 includes a frame 14 screwed to the rotating screw 13 and movable in the vertical direction along the guide rod 12 as described above. -Support means 3a pivotally supported by a tightening nut 3c disposed along the -Y line. The support means 3a includes a measuring instrument support arm 3b for detachably holding and supporting a wind tunnel test measuring instrument 5 for acquiring data by a wind tunnel test, and a cutting or the like for the terrain model material block 2. And a processing means mounting seat 3d for mounting a processing means 4 such as a cutting device for producing a terrain model by performing the above processing.

The measuring instrument supporting arm 3b and the processing means mounting seat 3d are formed in directions different from each other, for example, in directions orthogonal to each other. As shown in FIGS. 3 (1) and 3 (2), A wind tunnel test measuring instrument 5 such as an anemometer or a densitometer is mounted on the measuring instrument support arm 3b, and the processing means 4 such as a cutting device having a motor 4a and a cutting tool 4b is mounted on the processing means mounting seat 3d. Then, as shown by an arrow A in FIG. 1 (2), when the support means 3a is rotated around the tightening nut 3c, the processing means 4 and the wind tunnel test measuring instrument 5
It selectively moves between the active position and the inactive position.

The tightening nut 3c is loosened when the support means 3a rotates, and tightened to fix the support means 3a to the frame 14 while the support means 3a does not rotate. The tightening nut 3c is an example of a specific example. Instead of the tightening nut 3c, a pivotal support pin is used.
Can be rotated and fixed by operating a hydraulic cylinder, or by a motor driven gear mechanism. Frame 1 of support means 3a
The rotation and the fixed operation with respect to 4 can be controlled by the computer 6, the arithmetic unit 7 and the controller 8.

In the computer 6, coordinate data relating to the contour of the terrain, such as contour numerical value data of the terrain, is input in advance, and as shown in FIGS. 1 (1) and 1 (2), the terrain model material block 2 is inputted. Is cut by, for example, a cutting tool 4b to produce a terrain model 2a. After the completion of the terrain model 2a, the measuring instrument support arm 3b is rotated downward by 90 ° in the direction of arrow A, and is turned on as shown in FIGS.
State. In this state, the wind tunnel test measuring instrument 5 such as an anemometer or a densitometer detachably attached to the measuring instrument support arm 3b uses the coordinate data on the contour of the terrain such as the contour numerical value data at the time of producing the terrain model 2a as a reference. A wind speed distribution test or a concentration distribution test at the measurement position obtained as described above can be performed.

When performing the terrain model wind tunnel test, the terrain model wind tunnel test can be performed through the following steps. First, a terrain model material block 2 made of a material that is easy to cut, such as wood, styrene foam, or paraffin, is placed at the terrain model installation position in the terrain model wind tunnel test wind tunnel 1. Next, the computer 6, the arithmetic unit 7, and the controller 8
Processing means 4 for producing a terrain model 2a by processing the terrain model material block 2 in a traverse device 3 movable to an arbitrary position on the terrain model material block 2 under the control of The test measuring instrument 5 is attached, and the processing means 4 is set at a processing position on the traverse device 3. Then, coordinate data relating to the contour of the terrain, such as contour data of the terrain, is input to the computer 6, and under the control of the computer 6, the arithmetic unit 7, and the controller 8, according to the coordinate data such as the contour data, the material block 2 for terrain model. Is processed by the processing means 4 to produce a terrain model 2a. After the formation of the terrain model 2 a by the processing means 4, the processing means 4 is retracted to the non-processing position, and the wind tunnel test measuring instrument 5 is set at the measurement position on the traverse device 3.
Next, the wind tunnel test measuring instrument 5 is set at the measurement position on the traverse device 3 and then blown to the wind tunnel 1 to perform a terrain model wind tunnel test.

Although an example of the present invention has been described above, the method of supporting the processing means 4 and the measuring instrument 5 for wind tunnel test is not limited to the illustrated method, and various other methods can be adopted. it can.

[0017]

According to the terrain model wind tunnel test method and apparatus of the present invention, the following effects can be obtained. First, according to the terrain model wind tunnel test method of the present invention, (1) installing a terrain model material block made of a material that can be easily processed at the terrain model installation position in the terrain model wind tunnel test wind tunnel; Processing means for producing the terrain model by performing processing on the terrain model material block to a traverse device movable to an arbitrary position on the terrain model material block under the above and a wind tunnel test measuring instrument And setting the processing means at the processing position on the traverse device; inputting coordinate data relating to the contour of the terrain to the computer; and controlling the terrain model in accordance with the coordinate data under the computer control. Processing the material block by the processing means to produce the terrain model; and After fabrication, retracting the processing means to the non-processing position and setting the wind tunnel test measuring instrument at the measurement position on the traverse device, and positioning the wind tunnel test measuring instrument at the measurement position on the traverse device After setting, the method includes sending a wind tunnel test to the terrain model wind tunnel test to perform a wind tunnel model test, so that the production of the terrain model and the terrain model wind tunnel test are performed consistently in the same wind tunnel. Therefore, it is possible to save the time and labor required for transporting the manufactured terrain model to the installation location of the wind tunnel, carrying it into the wind tunnel, and installing the same in the wind tunnel, which has been conventionally performed. As a result, the construction period from the production of the terrain model to the start of the test can be greatly reduced, and the terrain model can be made of any material that is easy to process, so inexpensive materials can be used. Furthermore, when a retest is required and the terrain model is re-manufactured, the terrain model can be reproduced with high accuracy based on the coordinate data on the contour of the terrain model stored in the storage device of the computer, Further, the positioning of the measurement position in the height direction and the horizontal direction based on the position on the surface of the terrain model at the time of fabrication processing can be quickly performed with high accuracy based on the coordinate data. Next, according to the terrain model wind tunnel test apparatus of the present invention, (2) a terrain in which a terrain model material block made of a material that can be easily processed is detachably fixedly installed at the terrain model installation position in the terrain model wind tunnel test wind tunnel; Model material block fixing means, a traverse device movable at least to an arbitrary position on the terrain model material block under computer control, and the terrain model material block on the traverse device under computer control. And a wind tunnel test measuring instrument for acquiring data by a wind tunnel test in the presence of the terrain model at the terrain model installation position. And the traverser capable of selectively moving the processing means and the wind tunnel test measuring instrument between an operating position and a non-operating position. Since it is equipped with support means on the grounding device, it eliminates the conventional work of transporting the manufactured terrain model to the installation location of the wind tunnel, bringing it into the wind tunnel and installing it in the wind tunnel. The time and labor required for the work can be saved, and as a result, the construction period from the production of the terrain model to the start of the test can be significantly shortened. Because it is good, it is possible to use inexpensive materials, and when re-testing is necessary, when recreating the terrain model, it is based on the coordinate data on the contour of the terrain model stored in the storage device of the computer. The terrain model can be reproduced with high precision by using the terrain model. In rapidly terrain model wind tunnel test apparatus can be performed is obtained (claim 2).

[Brief description of the drawings]

FIG. 1 (1) is a longitudinal sectional side view of a main part of a terrain model wind tunnel test apparatus showing a state in which a terrain model material block is detachably fixed to the terrain model wind tunnel test apparatus according to one embodiment of the present invention. 1 (2) is an enlarged perspective view of a main part of FIG. 1 (1).

FIG. 2 is a vertical sectional side view of an essential part of the terrain model wind tunnel testing device, showing a state in which a terrain model is being manufactured by the terrain model wind tunnel testing device of FIG. 1;

FIG. 3 (1) is a view of the terrain model wind tunnel test apparatus showing a state in which a wind tunnel test is being performed using a terrain model created in the wind tunnel of the terrain model wind tunnel test apparatus of FIG. 1 (1). FIG. 3 is a vertical sectional side view, and FIG. 2B is an enlarged perspective view of a main part of FIG. 3A.

[Explanation of symbols]

 Reference Signs List 1 wind tunnel 2 material block for terrain model 3 traverse device 3a support means 3b measuring instrument support arm 3c tightening nut 3d mounting seat for processing means 4 processing means such as cutting device 4a motor 4b cutting tool 5 wind tunnel test such as anemometer or densitometer Measuring instrument for computer 6 Computer 7 Computing unit 8 Controller 9 Rail 10 Crossing girder 11 Dolly 12 Guide rod 13 Rotating screw 14 Frame of traverse device

Claims (2)

(57) [Claims] 1. A step of installing a terrain model material block made of a material that can be easily processed at a terrain model installation position in a terrain model wind tunnel test wind tunnel, and at least on the terrain model material block under computer control. A traverse device that can be moved to an arbitrary position, a processing means for producing the terrain model by performing processing on the terrain model material block, and a wind tunnel test measuring instrument are attached. Setting the position at the processing position on the traverse device; inputting coordinate data relating to the contour of the terrain model to the computer; and controlling the terrain model material block according to the coordinate data under the computer control. Preparing the topographic model by performing the processing by the above-mentioned processing means; Retracting the wind tunnel test measuring instrument to the measurement position on the traverse device and retracting the wind tunnel test measuring device to the measurement position on the traverse device, and then setting the terrain Performing a terrain model wind tunnel test by sending air to a model wind tunnel test wind tunnel, and performing the terrain model wind test and the terrain model wind tunnel test consistently in the same wind tunnel. Wind tunnel test method. 2. A terrain model material block fixing means for detachably fixing a terrain model material block made of a material that is easy to process at a terrain model installation position in a terrain model wind tunnel test wind tunnel, and under computer control. A traverse device movable to at least an arbitrary position on the terrain model material block, and a process for producing the terrain model by processing the terrain model material block on the traverse device under computer control. Means, the processing means and a wind tunnel test measuring instrument for acquiring measurement data by a wind tunnel test in the presence of the topographical model at the topographical model installation position, respectively supporting the processing means and the wind tunnel test measuring instrument And support means on the traverse device for selectively moving the traverse device between an operative position and a non-operative position. A terrain model wind tunnel testing device.