CN110082062A - A kind of bluff body fractionation structural model for automobile wind tunnel experimental study - Google Patents
A kind of bluff body fractionation structural model for automobile wind tunnel experimental study Download PDFInfo
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- CN110082062A CN110082062A CN201910304486.0A CN201910304486A CN110082062A CN 110082062 A CN110082062 A CN 110082062A CN 201910304486 A CN201910304486 A CN 201910304486A CN 110082062 A CN110082062 A CN 110082062A
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- 238000005194 fractionation Methods 0.000 title description 7
- 239000011800 void material Substances 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 abstract description 7
- 238000011160 research Methods 0.000 abstract description 7
- 238000012360 testing method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/08—Aerodynamic models
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
The invention proposes a kind of bluff bodies for automobile wind tunnel experimental study to split structural model, including main body, upper tailgate, lower tailgate, bottom plate；The main body is cavity body, and void space is for disposing pressure scanning valve；The upper end of the body floor and tail portion is equipped with opening；The bottom plate is engaged with body floor open edge, the upper tailgate and body tail section upper end opening edge join；The lower end of the body tail section is equipped with step surface, the lower tailgate and the step surface edge join；Equal flush with outer surface after each component engagement, plate seam slotless；The main body, lower tailgate, is equipped with several pressure taps on bottom plate at upper tailgate；The model mitigates model weight, easy to carry and adjustment significantly；It is also convenient for built-in installation measuring instrument simultaneously, can avoid generating flow-disturbing because of external measuring instrument, experimental data is interfered, and replaceable upper and lower tailgate, compares research.
Description
Technical field
The present invention relates to automotive aerodynamics technical fields, grind more particularly, to one kind for automobile wind tunnel experiment
The bluff body studied carefully splits structural model.
Background technique
Automotive aerodynamics are an aerodynamic important branch, with the development of Chinese Automobile Industry ', automobile
Aerodynamic effect becomes increasingly conspicuous.
The data such as aerodynamic force, surface pressing, information of flow are acquired by wind tunnel experiment, are that current automotive aerodynamics are ground
The basic data studied carefully need repeatedly to be adjusted the posture of model since the operating condition of the data of experiment acquisition.
Bluff body model is class car body model when carrying out automotive aerodynamics research in the world, at present to the model
When being processed, the usually solid model of monoblock type.Obviously, in wind tunnel test, because model is unitary solid, table is measured
Pressure valve when surface pressure can only be installed to outside car body model by lead, thus will cause object flow-disturbing, interference measurement number
According to；The models for several times of unitary solid moves adjustment, also time-consuming and laborious；Model does not account for and balance measuring system when installing yet
After connection, the play problem above and below after model wind-engaging how is eliminated.The presence of these problems, so that test error increases, labour
Intensity and time loss increase.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of real for automobile wind tunnel for prior art deficiency and defect
The bluff body for testing research splits structural model, changes the processing method of current unitary solid, can not only facilitate test equipment
Installation, it is time saving and energy saving, moreover it is possible to increase various working drag structure change research needs, be altered up and down after capable of more eliminating model wind-engaging
The raw data error of movable property.
To achieve the above object, the invention adopts the following technical scheme:
A kind of bluff body fractionation structural model for automobile wind tunnel experimental study, including main body, upper tailgate, lower tailgate, bottom plate；Institute
Stating main body is cavity body, and void space is for disposing pressure scanning valve；The upper end of the body floor and tail portion is all provided with
There is opening；The bottom plate is engaged with body floor open edge, the upper tailgate and body tail section upper end opening edge join；Institute
The lower end for stating body tail section is equipped with step surface, the lower tailgate and the step surface edge join；After each component engagement
Flush with outer surface, plate seam slotless；The main body, lower tailgate, is equipped with several pressure taps on bottom plate at upper tailgate.
Further, the juncture of the upper tailgate, lower tailgate, bottom plate and main body is screw connection.
Further, the connector of the screw connection is sunk screw or dormant bolt.
Further, the pressure tap is arranged in the side of each component of model.
Further, nozzle cup ring is inserted in the pressure tap.
Further, the model further includes the support column being fixed on bottom plate；There are four the support columns, symmetrical fixed
In four angles end of bottom plate.
Further, the support column is hollow pipe, and radial direction is also provided with a threaded hole.
Further, the step surface of the body tail section lower end is equipped with several bar shaped grooves.
Further, the bar shaped groove can fix various additional flow spoilers.
Further, the model includes multiple groups inclination angle difference, and upper tailgate, the lower tailgate that can be replaced mutually.
The invention has the benefit that
1. the main body that the bluff body provided by the present invention for automobile wind tunnel experimental study splits structural model is cavity body, significantly
Mitigate model weight, easy to carry and adjustment；It is also convenient for built-in installation measuring instrument simultaneously, can avoid due to external measuring instrument
Flow-disturbing is generated, experimental data is interfered.
2. bluff body provided by the present invention splits structural model and is spliced by all parts, after easy to process and damage easily
Replacement, each component Mosaic face is smooth, meets the smoothness requirements of vehicle body, reduces test error.
3. upper tailgate and lower tail that the bluff body provided by the present invention for automobile wind tunnel experimental study splits structural model
Plate dismounting is light, and can be replaced the different upper and lower tailgate in back side inclination angle, the various different backs of analog and tail portion moulding,
Research is compared, and only needs a main body that multiple upper and lower tailgates can be cooperated to use, saves cost.
4. each component part table that the bluff body provided by the present invention for automobile wind tunnel experimental study splits structural model
Face is smooth, and is equipped with several pressure taps, is easy to implement the precise measurement to vehicle upper and lower surface pressure.
5. the bluff body provided by the present invention for automobile wind tunnel experimental study splits structural model, body trailing end can pacify
Various additional flow spoilers are filled, with the surface pressing for studying different flow field situation drags.
6. the bluff body provided by the present invention for automobile wind tunnel experimental study, which is split, installs branch on the bottom plate of structural model
Dagger can be cooperated with the pillar of balance measuring system, model is securely fastened on balance, it is ensured that carry out wind-tunnel examination
When testing, model keeps stable state, accurately measures aerodynamic force.
Detailed description of the invention
Fig. 1 is the bluff body fractionation structural model schematic diagram provided by the present invention for automobile wind tunnel experimental study；
Fig. 2 is the bluff body fractionation structural model schematic diagram provided by the present invention for automobile wind tunnel experimental study；
The agent structure schematic diagram of this bluff body of Fig. 3 fractionation structural model；
The agent structure schematic diagram of this bluff body of Fig. 4 fractionation structural model；
Fig. 5 is the effect picture that different upper and lower tailgates are installed on body tail section；
Fig. 6 is support column arrangement schematic diagram.
Specific embodiment
With reference to the accompanying drawing and embodiment the invention will be further described.Wherein, attached drawing only for illustration,
What is indicated is only schematic diagram, rather than pictorial diagram, should not be understood as the limitation to this patent；Reality in order to better illustrate the present invention
Example is applied, the certain components of attached drawing have omission, zoom in or out, and do not represent the size of actual product；To those skilled in the art
For, the omitting of some known structures and their instructions in the attached drawings are understandable.
Embodiment 1
A kind of bluff body for automobile wind tunnel experimental study splits structural model, as shown in Figure 1, 2, including main body 1, upper tailgate 2,
Lower tailgate 3, bottom plate 4, support column 5；As shown in figure 3, the main body 1 is tetragonal body cavity body, void space is for disposing pressure
Power scans valve；The upper end of 1 bottom surface of main body and tail portion is equipped with opening；The bottom plate 4 and 1 bottom opening edge of main body
Engagement, the upper tailgate 2 and 1 tail portion upper end opening edge join of main body；The lower end of 1 tail portion of main body is equipped with step surface, institute
State lower tailgate 3 and the step surface edge join；Each joint is respectively formed smooth outer surface.
In the present embodiment, the engagement of the upper tailgate, lower tailgate, bottom plate and main body is all made of screw fixed form, such as schemes
3, shown in 4, body tail section upper end is equipped with 5 threaded holes that can be fixed with upper tailgate；Body tail section lower end is equipped with 6 can be with
The threaded hole that lower tailgate is fixed；Bottom part body is equipped with 8 threaded holes that can be fixed with bottom plate；Used in above-mentioned bearing
Connector between be all made of sunk screw or dormant bolt, model surface can be kept as far as possible smooth in this way, will not because connection
Part is raised and generates flow-disturbing, influences experiment accuracy.
The specific working mode invented provided by the present embodiment is as follows: the bluff body being completed splits structural model and is placed in
In the dedicated balance measuring system of wind tunnel experiment, which is equipped with a strain balance, and strain balance is due to tool
Have the advantages that light weight, small in size, strong applicability, it is at low cost be widely used in automobile wind tunnel, the elasticity of strain balance
Foil gauge is posted on element, when the effect by aerodynamic force, foil gauge deforms, and the signal of foil gauge output is according to its change
Shape degree and change, thus aerodynamic force and aerodynamic moment can be measured.
Later, the fixed model completed receives the tests of various simulation operating conditions and carries out data to adopt in wind1 tunnel laboratory
Collection.Upper tailgate 2, the lower tailgate 3 of the model all have an inclined outer surface after being installed on body tail section, this inclined
Surface is the emulation for ordinary passenger car tail shape, after the engagement of entire body tail section and upper and lower tailgate reduces for example
The structures such as windowsill, rear deck panel, rear baffle, rear fender, rear skirtboard, luggage-boot lid, air-flow caused by wind-tunnel pass through
It can be generated when model tail portion and extremely be similar to automobile flow field of tail wind when driving in real working condition.
The main body 1 of the model, lower tailgate 3, is equipped with several pressure taps 6, these pressure taps on bottom plate 4 at upper tailgate 2
Ozzle lantern ring is inserted in 6, ozzle lantern ring is adhesive in pressure tap 6 by solvable, the nozzle cup arranged in each pressure tap 6
Ring is a pressure tap, can substantially obtain vehicle surface pressing under locating operating condition by measuring to these pressure taps,
Pressure tap 6 is arranged in the side of each component of model, because model is symmetrical, therefore need to only measure a side data.
Specific survey pressure mode is as follows: the survey pressure of electric pressure scaner is mounted in the chamber between main body 1 and bottom plate 4
Module, the manometric module contain several piezoresistance sensors, and each sensor passes through a plurality of small hose pipe with pressure tap sky 6 respectively
The connection of muzzle ring；The external computer of electric pressure scaner, when manometric module is in measuring state, by computer
Software program controls pressure tap gating interface, different from each manometric module respectively by defined sample frequency and sample duration
Sensor is connected, and the first low-pass filtered device processing of sensor signal at this time is stored in calculator memory, to a mould after transformation
After quasi- operating condition total data has been surveyed, it is medium to be processed to be restored again into hard disc of computer.In this way, about on vehicle in simulation operating condition
Acquisition can be completed in the surface pressing of lower surface everywhere.
Mode is pressed based on above-mentioned survey, the bluff body splits structural model has corresponding design to be cooperated in structure: such as
Shown in Fig. 3, main body 1 is tetragonal body cavity body first, is closed by bottom plate 4, upper tailgate 2, in this way can be by pressure scanning valve
Manometric module be fixed in the base surface inside cavity；Secondly set by cavity and bottom part body set by the body tail section upper end
Cavity communicates, and the small hose for so connecting pressure scanning valve manometric module can unhinderedly connect tailgate pressure tap
Ozzle lantern ring in 6；Although lower tailgate 3 is not penetrated through with body cavity simultaneously, the step of its body tail section lower end engaged
Face is equipped with several strip through slots 7, and the small hose of connection scanning valve manometric module can pass through these through slots and reconnect lower tailgate 3
Ozzle lantern ring in upper pressure tap.
The advantages of above-mentioned measurement method, is, is tetragonal body cavity body knot based on blunt die body provided by the invention
Pressure valve is arranged in cavity by structure, and a plurality of small hose for surveying pressure is also clouded in body interior, can avoid because of measuring cell device cloth
It sets on the outside and flow-disturbing occurs, interference test result.
It can in test be removed in the lower tailgate 3 of the model, then bar shaped is logical on the step surface of body tail section lower end
The different additional flow spoiler of arrangement, different flow fields is generated in body tail section in slot 7, is tested and is made caused by various flow spoilers
With comparing research；The joint surface of upper tailgate 2, the both ends of lower tailgate 3 and main body is that perpendicular or level are flat simultaneously
The effect in face, such setting is, avoids generating seam in the more sensitive bending place in flow field, miss to generate biggish test
Difference.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, exist in upper tailgate or lower tailgate and embodiment 1 used by the present embodiment
The shape of difference, upper tailgate or lower tailgate in the present embodiment is different from inclination angle, is mounted on the vehicle emulated after body tail section
Tail portion moulding is different, as shown in figure 5,21,22,23 be the upper tailgate of different angle, 31,32,33,34 be the lower tail of different angle
Plate.
The different upper and lower tailgates in model provided by the invention can be replaced with multiple groups and inclination angle, i.e., each upper and lower tail
Plate can be installed on body tail section by identical screw fixed form, be based on such fixed form, can be light in real operation
The replacement to tailgate is realized, in this way, which the upper and lower tailgate with different angle can be carried out to combination of two installation can mould
A variety of automobile backs and tail structure are drawn up, saves material while conveniently comparing research, only needs a main body cooperation
Each different tailgate can transform to multiple models.
Embodiment 3
The installation method of a kind of embodiment 1 and model as described in example 2 is provided in the present embodiment.
When being tested in wind-tunnel, if model installation is loosely, it is most likely that cause test result inaccurate, even surprisingly
The generation of accident, therefore, it is necessary to which car model is fixedly mounted in balance measuring system.In the present embodiment, strain balance
Supporting surface is equipped with 4 pillars neatly arranged, while the pattern board is equipped with 4 support columns 5 neatly arranged, and props up
Dagger 5 is open tubular column, can be connect, i.e., is inserted into balance supporting surface pillar respectively in a manner of hole axle cooperation with the pillar on balance
The preliminary fixation of model can be completed in the hole of corresponding support column, but in order to facilitate the installation of, model support column bottom hole it is straight
Diameter can be 2 millimeters bigger than balance strut diameter, is otherwise difficult 4 pillars of balance while inserting in the hole of model support column bottom, because
This this resulted in model and might have slight vibration when by biggish aerodynamic force, so as to cause the appearance of model when test
State slightly offsets from initial position.In order to avoid the generation of the above problem, need to one rigid connection of setting between model and balance: such as
It is provided with a threaded hole 9 in 5 radial direction of support column shown in Fig. 6, passes through the quick sunk screw of essence and the dagger radial direction
Threaded hole forms spiral connection, screws next, pillar of the sunk screw end across threaded hole and radial balance measuring system
It is compressed, so that locking state is formed, to prevent in wind tunnel test after the effect of model wind-engaging power, along the shifting above and below pillar
It is dynamic.
Obviously, above-described embodiment is only intended to clearly illustrate technical solution of the present invention example, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in right of the present invention and want
Within the protection scope asked.
Claims (10)
1. a kind of bluff body for automobile wind tunnel experimental study splits structural model, which is characterized in that including main body, upper tailgate,
Lower tailgate, bottom plate；The main body is cavity body, and void space is for disposing pressure scanning valve；The body floor and
The upper end of tail portion is equipped with opening；The bottom plate is engaged with body floor open edge, the upper tailgate and body tail section upper end
Open edge engagement；The lower end of the body tail section is equipped with step surface, the lower tailgate and the step surface edge join；It is described
Outer surface after each component engagement is concordant, plate seam slotless；If being equipped on the main body, upper tailgate, lower tailgate, bottom plate
Dry pressure tap.
2. the bluff body according to claim 1 for automobile wind tunnel experimental study splits structural model, which is characterized in that institute
The juncture for stating tailgate, lower tailgate, bottom plate and main body is screw connection.
3. the bluff body according to claim 2 for automobile wind tunnel experimental study splits structural model, which is characterized in that institute
The connector for stating screw connection is sunk screw or dormant bolt.
4. the bluff body according to claim 1 for automobile wind tunnel experimental study splits structural model, which is characterized in that institute
State the side that pressure tap is arranged in each component of model.
5. the bluff body according to claim 4 for automobile wind tunnel experimental study splits structural model, which is characterized in that institute
It states and is inserted with nozzle cup ring in pressure tap.
6. the bluff body according to claim 1 for automobile wind tunnel experimental study splits structural model, which is characterized in that also
Including the support column being fixed on bottom plate；There are four the support columns, is symmetrically fixed on four angles end of bottom plate.
7. the bluff body according to claim 6 for automobile wind tunnel experimental study splits structural model, which is characterized in that institute
The support column stated is hollow pipe, and radial direction is also provided with a threaded hole.
8. the bluff body according to claim 1 for automobile wind tunnel experimental study splits structural model, which is characterized in that institute
The step surface for stating body tail section lower end is equipped with several bar shaped grooves.
9. the bluff body according to claim 8 for automobile wind tunnel experimental study splits structural model, which is characterized in that institute
Various additional flow spoilers can be fixed by stating bar shaped groove.
10. the bluff body according to claim 1 for automobile wind tunnel experimental study splits structural model, which is characterized in that
It is different including multiple groups inclination angle, and upper tailgate, the lower tailgate that can be replaced mutually.
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| CN201910304486.0A CN110082062B (en) | 2019-04-16 | 2019-04-16 | Blunt body split structure model for automobile wind tunnel experimental research |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111521372A (en) * | 2020-06-19 | 2020-08-11 | 湖南文理学院 | Long blunt body passenger car split structure model for wind tunnel experiment research |
| CN113049218A (en) * | 2019-12-27 | 2021-06-29 | 上汽通用汽车有限公司 | Pneumatic model mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200332928Y1 (en) * | 2003-06-24 | 2003-11-12 | 이근식 | A wind tunnel testing machine make use of vehicle |
| CN201060093Y (en) * | 2007-06-14 | 2008-05-14 | 同济大学 | 3/4 opening reversed flow type automobile model wind-tunnel test device |
| CN101650256A (en) * | 2009-08-20 | 2010-02-17 | 吉林大学 | Automobile wind tunnel test system for matching with moving belt ground effect |
| CN105157988A (en) * | 2015-08-24 | 2015-12-16 | 同济大学 | Piezometer orifice-based tunnel pressure synchronous measuring method for whole vehicles |
| JP2017227500A (en) * | 2016-06-21 | 2017-12-28 | 横浜ゴム株式会社 | Automobile wind tunnel testing method and method for manufacturing wind tunnel testing tire model |
| KR101889253B1 (en) * | 2018-02-28 | 2018-09-20 | 이종원 | Automatic control and monitoring method and system for wind tunnel experiment |
| CN109357879A (en) * | 2018-10-10 | 2019-02-19 | 中国航发湖南动力机械研究所 | Experimental rig and system are fanned to paddle is turned |
| CN209764377U (en) * | 2019-04-16 | 2019-12-10 | 湖南工业大学 | Blunt body split structure model for automobile wind tunnel experiment research |
-
2019
- 2019-04-16 CN CN201910304486.0A patent/CN110082062B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200332928Y1 (en) * | 2003-06-24 | 2003-11-12 | 이근식 | A wind tunnel testing machine make use of vehicle |
| CN201060093Y (en) * | 2007-06-14 | 2008-05-14 | 同济大学 | 3/4 opening reversed flow type automobile model wind-tunnel test device |
| CN101650256A (en) * | 2009-08-20 | 2010-02-17 | 吉林大学 | Automobile wind tunnel test system for matching with moving belt ground effect |
| CN105157988A (en) * | 2015-08-24 | 2015-12-16 | 同济大学 | Piezometer orifice-based tunnel pressure synchronous measuring method for whole vehicles |
| JP2017227500A (en) * | 2016-06-21 | 2017-12-28 | 横浜ゴム株式会社 | Automobile wind tunnel testing method and method for manufacturing wind tunnel testing tire model |
| KR101889253B1 (en) * | 2018-02-28 | 2018-09-20 | 이종원 | Automatic control and monitoring method and system for wind tunnel experiment |
| CN109357879A (en) * | 2018-10-10 | 2019-02-19 | 中国航发湖南动力机械研究所 | Experimental rig and system are fanned to paddle is turned |
| CN209764377U (en) * | 2019-04-16 | 2019-12-10 | 湖南工业大学 | Blunt body split structure model for automobile wind tunnel experiment research |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049218A (en) * | 2019-12-27 | 2021-06-29 | 上汽通用汽车有限公司 | Pneumatic model mechanism |
| CN111521372A (en) * | 2020-06-19 | 2020-08-11 | 湖南文理学院 | Long blunt body passenger car split structure model for wind tunnel experiment research |
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| CN110082062B (en) | 2024-05-14 |
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