CN104614183B - The stifled cone and experimental rig tested for assembly power air intake duct mode conversion - Google Patents
The stifled cone and experimental rig tested for assembly power air intake duct mode conversion Download PDFInfo
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- CN104614183B CN104614183B CN201510038378.5A CN201510038378A CN104614183B CN 104614183 B CN104614183 B CN 104614183B CN 201510038378 A CN201510038378 A CN 201510038378A CN 104614183 B CN104614183 B CN 104614183B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 36
- 238000004080 punching Methods 0.000 claims abstract description 84
- 230000000903 blocking effect Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 abstract description 26
- 230000008569 process Effects 0.000 abstract description 23
- 230000008859 change Effects 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
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- 230000006641 stabilisation Effects 0.000 description 1
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Abstract
The invention discloses a kind of stifled cone tested for assembly power air intake duct mode conversion, belong to assembly power air intake duct pneumatic design field.The top of stifled cone is equal to the stifled cone area of section and stifled cone bottom area ratio of any point to its any point distance between bottom on straight line with top to the ratio between air line distance between bottom；Stifled cone bottom area, which is equal to, intends blocking channel air outlet area of section.Can ensure in mode conversion process passage total blockage ratio it is constant or according to a certain linear rule change so that ensure mode conversion process air intake port Mach number keep it is constant or according to a certain linear rule change.It the invention also discloses a kind of experimental rig using above-mentioned stifled cone, will stagger before and after turbine channel outlet and punching press channel outlet, the stifled cone of turbine channel and the stifled cone of punching press passage can be avoided to occur the interference of internal and external channel air-flow in moving process.
Description
Technical field
The present invention relates to a kind of stifled cone and experimental rig tested for assembly power air intake duct mode conversion, belong to combination
Power air intake duct pneumatic design field.
Background technology
The hypersonic propulsion system of air suction type is the key technology for developing hypersonic aircraft, is emphasizing aviation integral
Application background under, the field causes the extensive concern of countries in the world.The flying speed scope of hypersonic aircraft includes
Subsonic speed, supersonic speed and hypersonic.The hypersonic propulsion system of air suction type needs to be winged in wide range of Mach numbers
Row device provides power, and this will be a huge challenge.Airbreathing propulsion system mainly has turbogenerator, punching press and super burn punching
Hydraulic motor both types.Wherein turbogenerator is adapted to work under relatively low Mach number, and punching press and ultra-combustion ramjet start
Machine is adapted to work under higher Mach number.Therefore using the method for combined engine, turbine and punching press and ultra-combustion ramjet are sent out
Motivation is combined, and can meet requirement of the hypersonic aircraft to airbreathing propulsion system.Pass through domestic and international associated specialist
Research show that assembly power engine is the rationality power set of Air-breathing hypersonic vehicle.
At present, combined engine according to the layout type of turbine and punching press and scramjet engine can be divided into tandem and
It is parallel.Wherein, combination in series engine uses front and rear layout type.Mode conversion is turbine mode and punching press mode
Mutually conversion is one of key technology of assembly power engine.Mode conversion process air intake duct needs to ensure to enter turbine and punching
The flow equilibrium and flow quality of hydraulic motor, which are met, to be required, just whole combined dynamic system can be made to play its advantage.
, it is necessary to simulate the change of turbine/punching engine working condition by stifled cone system when carrying out the experiment of air intake duct mode conversion.
At present the air intake duct that generally uses block up cone be based on etc. cone angle design method, the stifled cone blocked area designed using this method is with moving
Dynamic distance is in conic section relation, and air intake duct mode conversion process can not be met to turbine/punching press passage back-pressure using the stifled cone
Requirement, have impact on the stability of mode conversion and the accuracy of test data.
The content of the invention
The technical problems to be solved by the invention are to overcome prior art defect to test in mode conversion there is provided one kind
Journey can make total blockage ratio of guarantee mode conversion process turbine and punching press passage constant or according to the change of a certain linear rule
Stifled cone and assembly power air intake test device.
In order to solve the above-mentioned technical problem, provided by the present invention for blocking up that assembly power air intake duct mode conversion is tested
Cone, the top of the stifled cone to its any point distance between bottom on straight line and top to the ratio between air line distance between bottom etc.
In the stifled cone area of section and stifled cone bottom area ratio of any point；The stifled cone bottom area is equal to plan blocking channel and gone out
Air port area of section.
Present invention also offers the assembly power air intake duct mode conversion experimental rig using above-mentioned stifled cone, including turbine are logical
Road, punching press passage and stifled cone；The turbine channel and punching press passage are coaxially disposed, and turbine channel is located in punching press passage；It is described
Turbine channel outlet is located at the rear in punching press channel outlet section；The stifled cone includes the stifled cone of turbine channel and punching press passage
Stifled cone, the stifled cone of the punching press passage is blocked for the pressure passageway gas outlet that liquidates, and the stifled cone of the turbine channel is used for turbine
Passage gas outlet is blocked.
Preferably, the stifled cone of the turbine channel is bullet-shaped structure；The stifled cone of the punching press passage sets circular channel to be interior
Half-cone structure, described circular channel diameter is equal to the external diameter of the blocked turbine channel of the stifled cone of turbine channel, the punching
Pressure passageway blocks up tapered sleeve in turbine channel.
The principle of the present invention：It is in requirement of the combination in series power air intake duct mode conversion process engine to air intake duct
Air intake port Mach number keeps constant or changed according to a certain linear rule, therefore to ensure that mode conversion stabilization is carried out,
Total blockage ratio of turbine and punching press passage need to keep constant or change according to a certain linear rule.Due in mode conversion process
The blockage ratio of turbine and punching press passage is continually changing, it is ensured that total blockage ratio is constant or changes according to a certain linear rule
Will meet the stifled cone of turbine channel and the stifled linear change of cone two channel blockage ratios in moving process of punching press passage or by
According to the change of a certain linear rule.
The beneficial effects of the present invention are：(1), can ensure in mode conversion process passage total blockage ratio it is constant or
Person changes according to a certain linear rule, so as to ensure that mode conversion process air intake port Mach number keeps constant or according to certain
One linear rule changes, and the stability of mode conversion process is improved, so as to ensure the accuracy of experimental data；(2), experimental rig
Stagger before and after the outlet of middle turbine channel and punching press channel outlet, turbine channel outlet, can be with positioned at the rear of punching press channel outlet
Avoid the stifled cone of turbine channel and the stifled cone of punching press passage from occurring the interference of internal and external channel air-flow in moving process, cause two passages
Actual back-pressure and creating a difference for contemplating, so as to further lift the stability of mode conversion process；(3), by punching press passage
Stifled to be designed to half-cone, its cone cross section is designed to that right angled triangle can allow air-flow outwards to be arranged as far as possible after the stifled cone of punching press passage
Go out, it is to avoid with turbine channel exit flow formation aerodynamic interference, improve the stability of mode conversion process.
Brief description of the drawings
Fig. 1 is that turbine channel blocks up wimble structure figure；
Fig. 2 is that punching press passage blocks up wimble structure figure；
Fig. 3 is the stifled cone plane of symmetry of turbine channel；
Fig. 4 is the stifled cone plane of symmetry of punching press passage；
Fig. 5 is combination in series power air intake duct overall structure figure；
Fig. 6 is combination in series power air intake duct sectional view；
Fig. 7 is turbine, the partial view of the stifled cone of punching press passage；
Fig. 8 is turbine, the stifled cone semi-cutaway of punching press passage；
Fig. 9 is mode conversion process turbine, the stifled coning motion directional diagram of punching press passage；
Figure 10 is mode conversion process turbine, punching press passage relative position curve；
Figure 11 is mode conversion process air intake port, the discharge coefficient figure of turbine/punching press feeder connection；
Figure 12 is mode conversion process air intake port, the Mach number figure of turbine/punching press feeder connection；
In figure：1- combination in series power air intake ducts, 2- air intake ports, 3- punching press passages, 4- turbine channels, 5- punching presses
The stifled cone of passage, the stifled cone of 6- turbine channels, 7- punching press channel entrances section, 8- turbine channel imports section.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
It is used for the stifled cone that assembly power air intake duct mode conversion is tested in the present invention, including the stifled cone of turbine channel and punching press are led to
The stifled cone in road, cooperates between the stifled cone of turbine channel and the stifled cone of punching press passage and realizes the mode conversion of assembly power air intake duct.
As shown in Fig. 1,3 and 8, the stifled cone 6 of turbine channel is bullet-shaped structure, and it can be moved freely in turbine channel 4,
Turbine channel 4 is blocked, the turbine channel shown in Fig. 16 structures of stifled cone are that Fig. 3 rotates 180 ° of formation around symmetry axis.Whirlpool
The top of the stifled cone 6 of passage is taken turns to its certain point distance between bottom on straight line and top to the ratio between air line distance between bottom etc.
In the area of section and stifled cone bottom area ratio of this point.Turbine channel 6 bottom areas of stifled cone are equal to turbine channel air outlet and cut
The area of face 8.The half-sectional of the stifled cone 6 of turbine channel is shown in 6, Fig. 8 of the stifled cone of this turbine channel in order to become apparent from, explain
Figure, it is AC that turbine channel, which blocks up the top for boring 6 to bottom air line distance, and B is any point between AC, and it is straight between A points
Linear distance is that 6 movable distance AB, B point positions of the stifled cone of turbine channel are dynamic, is become according to the stifled movement of cone 6 of turbine channel
Change.The area S of 6 bottoms of the stifled cone of turbine channelTUVWith the area S of turbine channel air outlet section 8GHIIt is equal, on the stifled cone 6 of turbine channel
B points cross-sectional area is SDEF.Therefore in the stifled cone 6 of above-mentioned turbine channelOrDisplay in Fig. 8
The half-sectional structure of the stifled cone 6 of turbine channel, and the ratio between each several part is illustrated with this, should as those of ordinary skill in the art
Know said structure explanation merely for convenience and describe the stifled cone 6 of above-mentioned turbine channel, each portion in the overall structure using Fig. 1
/ than being identical with the ratio between each several part in half-sectional structure.
As shown in Fig. 2,4 and 8, the stifled cone 5 of punching press passage is the interior half-cone structure for setting circular channel, the stifled cone 5 of punching press passage
Upper circular channel diameter is equal to the external diameter of turbine channel 4, and the stifled cone 5 of punching press passage, which can be enclosed in turbine channel 4, to be moved forward and backward,
The pressure passageway 3 that liquidates is blocked.It is to allow air-flow to pass through as shown in figure 4,5 cross sections of the stifled cone of punching press passage are right angled triangle
Discharged as far as possible after the stifled cone 5 of overshoot pressure passageway, it is to avoid with the exit flow of turbine channel 4 formation aerodynamic interference.Punching press passage is blocked up
The top of cone 5 is equal to this point to its certain point distance between bottom on straight line with top to the ratio between air line distance between bottom
Bore area of section and punching press passage 5 bottom area ratios of stifled cone.Punching press passage 5 areas of stifled cone are equal to punching press passage air outlet section
7 areas.In order to illustrate more clearly of the semi-cutaway that the stifled cone 5 of punching press passage is shown in 5, Fig. 8 of the stifled cone of this punching press passage, punching press is led to
The top of the stifled cone 5 in road is RS to bottom air line distance, and M is any point between RS, and its air line distance between R points is rushes
5 displacement RM, M point positions of the stifled cone of pressure passageway are dynamic, are changed according to the stifled movement of cone 5 of punching press passage.Punching press passage is blocked up
Bore the area S of 5 bottomsJKLMWith the area S of punching press passage air inlet section 7VYXWEqual, the stifled cone M point cross-sectional areas of punching press passage are
SJKLM.Therefore in the stifled cone 5 of above-mentioned punching press passageOrThe stifled cone 5 of display punching press passage in Fig. 8
Half-sectional structure, and with
The ratio between each several part is illustrated in this, should appreciate that said structure as those of ordinary skill in the art merely to
Conveniently illustrate and describe the stifled cone of above-mentioned turbine channel, in the overall structure using Fig. 2 the ratio between each several part with it is each in half-sectional structure
The ratio between part is identical.
The stifled cone 6 of turbine channel and the stifled cone 5 of punching press passage are described above, it may be said that the bright stifled cone for being is not limited to
Said structure, stifled cone can carry out the selection of different structure according to different passages, but the ratio between each several part should be met in structure
Above-mentioned requirements.
As shown in Fig. 5,6 and 7, for using the assembly power air intake duct of the stifled cone 6 of above-mentioned turbine channel and the stifled cone 4 of punching press passage
Mode conversion experimental rig, it mainly applies on combination in series power air intake duct.Above-mentioned experimental rig, it includes turbine and led to
Road 4 and punching press passage 3.Turbine channel 4 and punching press passage 3 are drum-shaped, and two are coaxially disposed, and turbine channel 4 is arranged on punching press
In passage 3.The import of punching press passage 3 is connected with the gas outlet 2 of combination in series power air intake duct 1.Turbine channel 4 and punching press are logical
Road 3 mutually staggers, and outlet is not on same section, i.e. turbine channel outlet is used positioned at the rear of punching press channel outlet
This design can avoid the stifled cone of turbine channel 4 and punching press passage 3 from occurring aerodynamic interference phenomenon in moving process, it is ensured that
The stability of mode conversion.It is inserted in the stifled cone 5 of punching press passage in turbine channel 4, the stifled cone 5 of punching press passage can be along before and after turbine channel 4
The mobile pressure passageway 3 that liquidates is blocked.The stifled cone 6 of turbine channel is can be inserted into the air inlet of turbine channel 4, the stifled cone 6 of turbine channel can
It is movable that turbine channel 4 is blocked.
As shown in figure 9, under the conditions of mode conversion process ensures blockage ratio for 65%, the stifled cone 6 of turbine channel and punching press are logical
The position of stifled corresponding 5 of the cone 5 in road, the wherein direction of arrow represent the moving direction of stifled cone, i.e., when the stifled cone 6 of turbine channel is transported forward
While row is blocked to turbine channel 4, the stifled cone 5 of punching press passage is moved rearwards by simultaneously, reduces the blocking for the pressure passageway 3 that liquidates,
So as to ensure that total blockage ratio of air intake duct is constant.
As shown in Figure 10, cone 5 is blocked up in figure for the stifled cone 6 of turbine channel and punching press passage of 5 states of mode conversion process
Relative position, wherein abscissa represent the displacement of the stifled cone 6 of turbine channel, and ordinate represents the movement of the stifled cone 5 of punching press passage
Distance, than that can illustrate that the stifled cone 6 of this hair invention description turbine channel and punching press passage 5 one linear rules of stifled cone become in this figure
Change.
As shown in Figure 11,12, the stifled cone 6 of turbine channel and the stifled air inlet under 5 states described in Figure 10 of cone 5 of punching press passage are said
The discharge coefficient and Mach number of mouth, turbine channel import and punching press channel entrance are with turbine channel blockage ratio change curve.From figure
In understand that air intake port discharge coefficient and Mach number can be substantially met in mode conversion process keeps constant, reaches expection
It is required that.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, some improvement can also be made under the premise without departing from the principles of the invention, and these improvement also should be regarded as the present invention's
Protection domain.
Claims (1)
1. a kind of assembly power air intake duct mode conversion experimental rig, it is characterised in that：Including turbine channel, punching press passage and stifled
Cone；The turbine channel and punching press passage are coaxially disposed, and turbine channel is located in punching press passage；The turbine channel outlet
Rear positioned at punching press channel outlet section；The stifled cone includes the stifled cone of turbine channel and the stifled cone of punching press passage, and the punching press is led to
The stifled cone in road is blocked for the pressure passageway gas outlet that liquidates, and the stifled cone of the turbine channel is used to block up turbine channel gas outlet
Plug；The top of the stifled cone is to its any point distance between bottom on straight line and top to the ratio between air line distance between bottom etc.
In the stifled cone area of section and stifled cone bottom area ratio of any point；The stifled cone bottom area is equal to plan blocking channel and gone out
Air port area of section；
The stifled cone of the turbine channel is bullet-shaped structure；The stifled cone of the punching press passage is the interior half-cone structure for setting circular channel,
Described circular channel diameter is equal to the external diameter of the blocked turbine channel of the stifled cone of turbine channel, and the punching press passage blocks up tapered sleeve and existed
In turbine channel.
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| CN201510038378.5A CN104614183B (en) | 2015-01-26 | 2015-01-26 | The stifled cone and experimental rig tested for assembly power air intake duct mode conversion |
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| CN201510038378.5A CN104614183B (en) | 2015-01-26 | 2015-01-26 | The stifled cone and experimental rig tested for assembly power air intake duct mode conversion |
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| CN104614183B true CN104614183B (en) | 2017-11-07 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157947B (en) * | 2015-08-19 | 2016-08-24 | 南京航空航天大学 | A kind of combination in series power air intake duct MODAL TRANSFORMATION OF A test method |
| CN105424309B (en) * | 2015-11-03 | 2017-12-15 | 南京航空航天大学 | A kind of mono-/bis-duct mode transition procedure air-flow dynamic rerponse test stand |
| CN105539862B (en) * | 2016-01-14 | 2017-06-30 | 南京航空航天大学 | A kind of combination in series power air intake duct flatly moving type mode conversion device |
| CN109204883B (en) * | 2018-11-20 | 2023-10-03 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Ventilation nacelle for wind tunnel test |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726733A (en) * | 1986-10-28 | 1988-02-23 | Daniel Scampini | Variable diffuser element |
| CN201006142Y (en) * | 2006-09-06 | 2008-01-16 | 河南辉瑞医疗器械有限公司 | Flux valve |
| CN201688962U (en) * | 2010-03-29 | 2010-12-29 | 南京航空航天大学 | Air inlet duct testing device capable of measuring on same model |
| CN103089444A (en) * | 2013-01-25 | 2013-05-08 | 西北工业大学 | Structure for reducing back pressure of air inlet channel of inspiration type impulse knocking engine |
| CN104266817A (en) * | 2014-09-17 | 2015-01-07 | 北京动力机械研究所 | Air inlet channel test throttling cone |
| CN204439362U (en) * | 2015-01-26 | 2015-07-01 | 南京航空航天大学 | For stifled cone and the test unit of the test of assembly power air intake duct MODAL TRANSFORMATION OF A |
-
2015
- 2015-01-26 CN CN201510038378.5A patent/CN104614183B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4726733A (en) * | 1986-10-28 | 1988-02-23 | Daniel Scampini | Variable diffuser element |
| CN201006142Y (en) * | 2006-09-06 | 2008-01-16 | 河南辉瑞医疗器械有限公司 | Flux valve |
| CN201688962U (en) * | 2010-03-29 | 2010-12-29 | 南京航空航天大学 | Air inlet duct testing device capable of measuring on same model |
| CN103089444A (en) * | 2013-01-25 | 2013-05-08 | 西北工业大学 | Structure for reducing back pressure of air inlet channel of inspiration type impulse knocking engine |
| CN104266817A (en) * | 2014-09-17 | 2015-01-07 | 北京动力机械研究所 | Air inlet channel test throttling cone |
| CN204439362U (en) * | 2015-01-26 | 2015-07-01 | 南京航空航天大学 | For stifled cone and the test unit of the test of assembly power air intake duct MODAL TRANSFORMATION OF A |
Non-Patent Citations (1)
| Title |
|---|
| CFD方法在背负式进气道堵锥风洞试验模型设计中的应用;邓建等;《飞机设计》;20131231;第33卷(第6期);全文 * |
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Effective date of registration: 20180412 Address after: Yudaojie Qinhuai District of Nanjing City, Jiangsu Province, No. 29 210016 Co-patentee after: Beijing Institute of Power Machinery Patentee after: Nanjing University of Aeronautics and Astronautics Address before: Yudaojie Qinhuai District of Nanjing City, Jiangsu Province, No. 29 210016 Patentee before: Nanjing University of Aeronautics and Astronautics |