CN108154769A - A kind of experimental provision and experimental method of researching airfoil lift secret - Google Patents
A kind of experimental provision and experimental method of researching airfoil lift secret Download PDFInfo
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- CN108154769A CN108154769A CN201810228236.9A CN201810228236A CN108154769A CN 108154769 A CN108154769 A CN 108154769A CN 201810228236 A CN201810228236 A CN 201810228236A CN 108154769 A CN108154769 A CN 108154769A
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- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/12—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of liquids or gases
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Abstract
A kind of experimental provision and experimental method of researching airfoil lift secret, including double diaphragm cavities and liquid holding groove, the outside of double diaphragm cavities is provided with positioning plate, the end set of double diaphragm cavities has water conservancy diversion lattice, the other end of double diaphragm cavities is provided with air intake passage, the air intake passage is connected with connection pipe of dust collector, Airfoil Sections model is provided among double diaphragm cavities, the both sides up and down of the Airfoil Sections model are provided with thin silk thread, the thin silk thread is provided at both ends with fixed bonding point, double diaphragm cavities are connected by being fixedly connected with frame with support post, it is connected among the support post by balancing strut member with the liquid holding groove.Advantageous effect is：The present invention can carry out quantitative measurment by Bernoulli Jacob and law of connected vessels under the premise of low cost to the lift of fixed machine wing, and of low cost, material is easy to get, experimental principle is clear, convenient for instructing student.
Description
Technical field
The present invention relates to fixed wing aircraft wing design apparatus fields, and the present invention relates to a kind of researching airfoil lift secrets
Experimental provision and experimental method.
Background technology
Wing is one of important component of aircraft, on fuselage.Its main effect is to generate lift, while also may be used
To put ammunition cabins and fuel tank inside wing, undercarriage can be awing collected.In addition, it is also equipped with improving on wing
Fly also to increase lift equipped with slat etc. in the leading edge of a wing with the wing flap of landing data and the aileron for aircraft lateral control, some
Device, therefore the shape of the wing of fixed wing aircraft has its lift important influence, and also the flight cost of aircraft is risen
Important influence.
The main method for studying fixed wing model a kind of at present is to use wind-tunnel generation high-speed flow, and this side
Method there is the shortcomings that equipment cost is high, difficulty is high, can not use again for common senior middle school laboratory and laboratory in colleges and universities.
Invention content
The experiment that the purpose of the present invention is that solve the above-mentioned problems and provides a kind of researching airfoil lift secret fills
It puts and experimental method.
The present invention is achieved through the following technical solutions above-mentioned purpose：
A kind of experimental provision of researching airfoil lift secret, including double diaphragm cavities and liquid holding groove, outside double diaphragm cavities
Portion is provided with positioning plate, and the end set of double diaphragm cavities has water conservancy diversion lattice, and the other end of double diaphragm cavities is provided with
Air intake passage, the air intake passage are connected with connection pipe of dust collector, and Airfoil Sections mould is provided among double diaphragm cavities
Type, the both sides up and down of the Airfoil Sections model are provided with thin silk thread, and the thin silk thread is provided at both ends with fixed bonding point, institute
It states double diaphragm cavities by being fixedly connected with frame with support post to be connected, passes through balancing strut member and institute among the support post
It states liquid holding groove to be connected, wing tail portion communicating pipe, wing end communicating pipe and control group siphunculus is provided with above the liquid holding groove,
Wing tail portion communicating pipe, the wing end communicating pipe and the control group siphunculus are by installing pore and double partition boards
Cavity is connected, and wing tail portion communicating pipe, the wing end communicating pipe and the control group siphunculus are cut respectively with wing
Surface model is connected.
In the present embodiment, fixing bolt is additionally provided on the positioning plate, the positioning plate is with the air intake passage in close
Assembly connection is sealed, sealing and anti-leakage pad is additionally provided between the air intake passage and the connection pipe of dust collector.
In the present embodiment, the Airfoil Sections model is by justifying tube, cutting mould top barrel, section mould upper surface notch, section mould
Lower part barrel, section mould lower surface notch, wing tail portion notch and wing end notch composition, the round tube are arranged on the machine
The wing tail portion of wing section model, the wing end notch are arranged on the wing end of the Airfoil Sections model, described section
Mould upper surface notch and described section of mould lower surface notch are respectively in the upper and lower directions symmetric design of wing.
In the present embodiment, the diameter of the round tube and described section of mould lower part barrel, described section of mould top barrel diameter
Than being four to one.
In the present embodiment, each control group siphunculus by a upper surface communicating pipe with one lower surface communicating pipe group
Into each upper surface communicating pipe is connected respectively with cutting mould upper surface notch described in one, each lower surface connection
Pipe is connected respectively with cutting mould lower surface notch described in one.
In the present embodiment, double diaphragm cavities are with the frame that is fixedly connected by groove nested encryptions, and the fixation is even
It connects frame to rivet with the support post, the support post is fixedly connected with the balancing strut member.
In the present embodiment, the balancing strut member fixes support connection with the liquid holding groove, is filled inside the liquid holding groove
Colored liquid.
In the present embodiment, the wing end communicating pipe is connected with the wing end notch, and the wing tail portion connects
Siphunculus is connected with wing tail portion notch.
In the present embodiment, specific experimental method is：
A, it injects colored liquid into the liquid holding groove, and is made the liquid holding groove leveling described by the balancing strut member
Liquid level in liquid holding groove keeps horizontal；
B, the connection pipe of dust collector is connected, and open dust catcher with dust catcher sealing, dust catcher is led to by the air-breathing
Road air-breathing imports extraneous air between double diaphragm cavities by the water conservancy diversion lattice；
C, the thin silk thread is driven to change shape by the air-flow that the water conservancy diversion lattice import, while high-speed flow flows through the wing and cuts
Each notch on surface model reduces the air pressure in notch pipe, so as to make wing tail portion communicating pipe, the wing end
Liquid level in communicating pipe, the control group siphunculus is promoted；
D, the liquid level recorded on wing tail portion communicating pipe, the wing end communicating pipe and each control group siphunculus is high
Degree, and record the shape of the corresponding thin silk thread；
E, change the elevation angle of the Airfoil Sections model, tested again, and record relevant experimental data successively, according to experiment
Data by described point, paint closing diagram and seek its area, the secret that researching airfoil lift generates.
In the present embodiment, the experimental data group number of record is not less than five groups.
The beneficial effects of the present invention are：The present invention can be former by Bernoulli Jacob and linker under the premise of low cost
It manages and quantitative measurment is carried out to the lift of fixed machine wing, of low cost, material is easy to get, experimental principle is clear, convenient for instructing student.
Description of the drawings
Fig. 1 is a kind of front view structure schematic diagram of the experimental provision of researching airfoil lift secret of the present invention；
Fig. 2 is a kind of rearview of the experimental provision of researching airfoil lift secret of the present invention；
Fig. 3 is a kind of sectional view of the Airfoil Sections model of the experimental provision of researching airfoil lift secret of the present invention；
Fig. 4 is a kind of schematic diagram of the control group siphunculus of the experimental provision of researching airfoil lift secret of the present invention.
The reference numerals are as follows：
1st, Airfoil Sections model；2nd, double diaphragm cavities；3rd, positioning plate；4th, fixing bolt；5th, water conservancy diversion lattice；6th, thin silk thread；7th, it is fixed
Bonding point；8th, air intake passage；9th, connection pipe of dust collector；The 10th, pore is installed；11st, wing tail portion communicating pipe；12nd, wing end connects
Siphunculus；13rd, control group siphunculus；14th, liquid holding groove；15th, balancing strut member；16th, support post；17th, it is fixedly connected with frame；101st, circle turns
Pipe；102nd, mould top barrel is cut；103rd, mould upper surface notch is cut；104th, mould lower part barrel is cut；105th, mould lower surface notch is cut；
106th, wing tail portion notch；107th, wing end notch；1301st, upper surface communicating pipe；1302nd, lower surface communicating pipe.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings：
As Figure 1-Figure 4, a kind of experimental provision of researching airfoil lift secret, including double diaphragm cavities 2 and liquid holding groove 14, institute
The outside for stating double diaphragm cavities 2 is provided with positioning plate 3, and the end sets of double diaphragm cavities 2 has a water conservancy diversion lattice 5, it is described it is double every
The other end of plate cavity 2 is provided with air intake passage 8, and the air intake passage 8 is connected with connection pipe of dust collector 9, double partition boards
Airfoil Sections model 1 is provided among cavity 2, the both sides up and down of the Airfoil Sections model 1 are provided with thin silk thread 6, described thin
Silk thread 6 is provided at both ends with fixed bonding point 7, and double diaphragm cavities 2 are connected by being fixedly connected with frame 17 with support post 16
It connects, is connected among the support post 16 by balancing strut member 15 with the liquid holding groove 14,14 top of liquid holding groove is set
It is equipped with wing tail portion communicating pipe 11, wing end communicating pipe 12 and control group siphunculus 13, it is wing tail portion communicating pipe 11, described
Wing end communicating pipe 12 and the control group siphunculus 13 are connected by installing pore 10 with double diaphragm cavities 2, described
Wing tail portion communicating pipe 11, the wing end communicating pipe 12 and the control group siphunculus 13 respectively with 1 phase of Airfoil Sections model
Connection.
In the present embodiment, fixing bolt 4, the positioning plate 3 and the air intake passage 8 are additionally provided on the positioning plate 3
In sealing assembly connection, sealing and anti-leakage pad is additionally provided between the air intake passage 8 and the connection pipe of dust collector 9.
In the present embodiment, the Airfoil Sections model 1 is by circle tube 101, section mould top barrel 102, section mould upper surface slot
Mouth 103, section mould lower part barrel 104, section mould lower surface notch 105, wing tail portion notch 106 and a wing end notch 107 form,
The round tube 101 is arranged on the wing tail portion of the Airfoil Sections model 1, and the wing end notch 107 is arranged on described
The wing end of Airfoil Sections model 1, described section of mould upper surface notch 103 and described section of mould lower surface notch 105 are respectively in machine
The upper and lower directions symmetric design of the wing.
In the present embodiment, the diameter of the round tube 101 and described section of mould lower part barrel 104, described section of mould top barrel
102 diameter ratio is four to one.
In the present embodiment, each control group siphunculus 13 is connected by a upper surface communicating pipe 1301 and a lower surface
Siphunculus 1302 forms, and each upper surface communicating pipe 1301 is connected respectively with cutting mould upper surface notch 103 described in one, often
A lower surface communicating pipe 1302 is connected respectively with cutting mould lower surface notch 105 described in one.
In the present embodiment, double diaphragm cavities 2 pass through groove nested encryptions, the fixation with the frame 17 that is fixedly connected
Link 17 is riveted with the support post 16, and the support post 16 is fixedly connected with the balancing strut member 15.
In the present embodiment, the balancing strut member 15 is fixed support with the liquid holding groove 14 and is connected, in the liquid holding groove 14
Portion fills colored liquid.
In the present embodiment, the wing end communicating pipe 12 is connected with the wing end notch 107, the wing tail
Portion's communicating pipe 11 is connected with wing tail portion notch 106.
In the present embodiment, specific experimental method is：
A, colored liquid is injected into the liquid holding groove 14, and by the balancing strut member 15 by 14 leveling of liquid holding groove,
Make the liquid level holding in the liquid holding groove 14 horizontal；
B, the connection pipe of dust collector 9 is connected, and open dust catcher with dust catcher sealing, dust catcher is led to by the air-breathing
8 air-breathing of road imports extraneous air between double diaphragm cavities 2 by the water conservancy diversion lattice 5；
C, the air-flow imported by the water conservancy diversion lattice 5 drives the thin silk thread 6 to change shape, while high-speed flow flows through the wing
Each notch on section model 1 reduces the air pressure in notch pipe, so as to make wing tail portion communicating pipe 11, the machine
Liquid level in tip extension communicating pipe 12, the control group siphunculus 13 is promoted；
D, it records on wing tail portion communicating pipe 11, the wing end communicating pipe 12 and each control group siphunculus 13
Liquid level, and record the shape of the corresponding thin silk thread 6；
E, change the elevation angle of the Airfoil Sections model 1, tested again, and record relevant experimental data successively, according to reality
Data are tested, by described point, closing diagram is painted and seeks its area, the secret that researching airfoil lift generates.
In the present embodiment, the experimental data group number of record is not less than five groups.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.
Claims (10)
1. a kind of experimental provision of researching airfoil lift secret, it is characterised in that：Including double diaphragm cavities 2 and liquid holding groove 14, institute
The outside for stating double diaphragm cavities 2 is provided with positioning plate 3, and the end sets of double diaphragm cavities 2 has a water conservancy diversion lattice 5, it is described it is double every
The other end of plate cavity 2 is provided with air intake passage 8, and the air intake passage 8 is connected with connection pipe of dust collector 9, double partition boards
Airfoil Sections model 1 is provided among cavity 2, the both sides up and down of the Airfoil Sections model 1 are provided with thin silk thread 6, described thin
Silk thread 6 is provided at both ends with fixed bonding point 7, and double diaphragm cavities 2 are connected by being fixedly connected with frame 17 with support post 16
It connects, is connected among the support post 16 by balancing strut member 15 with the liquid holding groove 14,14 top of liquid holding groove is set
It is equipped with wing tail portion communicating pipe 11, wing end communicating pipe 12 and control group siphunculus 13, it is wing tail portion communicating pipe 11, described
Wing end communicating pipe 12 and the control group siphunculus 13 are connected by installing pore 10 with double diaphragm cavities 2, described
Wing tail portion communicating pipe 11, the wing end communicating pipe 12 and the control group siphunculus 13 respectively with 1 phase of Airfoil Sections model
Connection.
2. a kind of experimental provision of researching airfoil lift secret according to claim 1, it is characterised in that：The positioning plate
（3）On be additionally provided with fixing bolt（4）, the positioning plate（3）With the air intake passage（8）In sealing assembly connection, the suction
Gas channel（8）With the connection pipe of dust collector（9）Between be additionally provided with sealing and anti-leakage pad.
3. a kind of experimental provision of researching airfoil lift secret according to claim 1, it is characterised in that：The wing is cut
Surface model（1）By circle tube（101）, cut mould top barrel（102）, cut mould upper surface notch（103）, cut mould lower part barrel
（104）, cut mould lower surface notch（105）, wing tail portion notch（106）With wing end notch（107）Composition, the round tube
（101）It is arranged on the Airfoil Sections model（1）Wing tail portion, the wing end notch（107）It is arranged on the wing
Section model（1）Wing end, described section of mould upper surface notch（103）With described section of mould lower surface notch（105）Exist respectively
The upper and lower directions symmetric design of wing.
4. a kind of experimental provision of researching airfoil lift secret according to claim 3, it is characterised in that：The round tube
（101）Diameter and described section of mould lower part barrel（104）, described section of mould top barrel（102）Diameter ratio be four to one.
5. a kind of experimental provision of researching airfoil lift secret according to claim 3, it is characterised in that：It is each described right
According to a group siphunculus（13）By a upper surface communicating pipe（1301）With a lower surface communicating pipe（1302）Composition, it is each it is described on
Surface communicating pipe（1301）Respectively with cutting mould upper surface notch described in one（103）It is connected, each lower surface communicating pipe
（1302）Respectively with cutting mould lower surface notch described in one（105）It is connected.
6. a kind of experimental provision of researching airfoil lift secret according to claim 1, it is characterised in that：Double partition boards
Cavity（2）Frame is fixedly connected with described（17）It is described to be fixedly connected with frame by groove nested encryptions（17）With the support post
（16）Riveting, the support post（16）With the balancing strut member（15）It is fixedly connected.
7. a kind of experimental provision of researching airfoil lift secret according to claim 1, it is characterised in that：The balance branch
Support member（15）With the liquid holding groove（14）Fixed support connection, the liquid holding groove（14）Inside fills colored liquid.
8. a kind of experimental provision of researching airfoil lift secret according to claim 2, it is characterised in that：The wingtip
Portion's communicating pipe（12）With the wing end notch（107）It is connected, wing tail portion communicating pipe（11）With the wing tail
Portion's notch（106）It is connected.
9. a kind of experimental provision of researching airfoil lift secret, it is characterised in that：Specific experimental method includes following step
Suddenly：
A, to the liquid holding groove（14）Middle injection colored liquid, and pass through the balancing strut member（15）By the liquid holding groove（14）
Leveling makes the liquid holding groove（14）Interior liquid level keeps horizontal；
B, by the connection pipe of dust collector（9）It is connected, and open dust catcher with dust catcher sealing, dust catcher passes through the air-breathing
Channel（8）Extraneous air is passed through the water conservancy diversion lattice by air-breathing（5）Import double diaphragm cavities（2）Between；
C, by the water conservancy diversion lattice（5）The air-flow of importing drives the thin silk thread（6）Change shape, at the same high-speed flow flow through it is described
Airfoil Sections model（1）On each notch, reduce the air pressure in notch pipe, so as to make wing tail portion communicating pipe
（11）, wing end communicating pipe（12）, the control group siphunculus（13）Interior liquid level is promoted；
D, wing tail portion communicating pipe is recorded（11）, wing end communicating pipe（12）With each control group siphunculus
（13）On liquid level, and record the corresponding thin silk thread（6）Shape；
E, change the Airfoil Sections model（1）The elevation angle, tested again, and record relevant experimental data successively, according to
Experimental data by described point, paints closing diagram and seeks its area, the secret that researching airfoil lift generates.
10. a kind of experimental provision of researching airfoil lift secret according to claim 9, it is characterised in that：The reality of record
Data group number is tested not less than five groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228236.9A CN108154769A (en) | 2018-03-20 | 2018-03-20 | A kind of experimental provision and experimental method of researching airfoil lift secret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228236.9A CN108154769A (en) | 2018-03-20 | 2018-03-20 | A kind of experimental provision and experimental method of researching airfoil lift secret |
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| Publication Number | Publication Date |
|---|---|
| CN108154769A true CN108154769A (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810228236.9A Pending CN108154769A (en) | 2018-03-20 | 2018-03-20 | A kind of experimental provision and experimental method of researching airfoil lift secret |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238623A (en) * | 2018-11-13 | 2019-01-18 | 西北工业大学 | A kind of silk thread mounting structure and its installation method for wind tunnel test part |
| CN109357834A (en) * | 2018-11-13 | 2019-02-19 | 西北工业大学 | A kind of fluorescence silk thread mounting structure based on sleeve |
-
2018
- 2018-03-20 CN CN201810228236.9A patent/CN108154769A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238623A (en) * | 2018-11-13 | 2019-01-18 | 西北工业大学 | A kind of silk thread mounting structure and its installation method for wind tunnel test part |
| CN109357834A (en) * | 2018-11-13 | 2019-02-19 | 西北工业大学 | A kind of fluorescence silk thread mounting structure based on sleeve |
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