CN108516108A - A kind of laser micro-propulsion device and method based on nano-fluid microlayer model working medium - Google Patents
A kind of laser micro-propulsion device and method based on nano-fluid microlayer model working medium Download PDFInfo
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- CN108516108A CN108516108A CN201810189394.8A CN201810189394A CN108516108A CN 108516108 A CN108516108 A CN 108516108A CN 201810189394 A CN201810189394 A CN 201810189394A CN 108516108 A CN108516108 A CN 108516108A
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- 238000010008 shearing Methods 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
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- 230000003075 superhydrophobic effect Effects 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
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- 238000004544 sputter deposition Methods 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- 241000931526 Acer campestre Species 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/24—Guiding or controlling apparatus, e.g. for attitude control
- B64G1/242—Orbits and trajectories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G1/00—Cosmonautic vehicles
- B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
- B64G1/40—Arrangements or adaptations of propulsion systems
- B64G1/409—Unconventional spacecraft propulsion systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
- B64G4/00—Tools specially adapted for use in space
Abstract
A kind of laser micro-propulsion device and method based on nano-fluid microlayer model working medium, device include propeller housing, working medium nacelle, auxiliary gas reservoir, microfluidic components；Wherein, auxiliary gas reservoir uses integrated design with working medium nacelle, realizes unicom by regulating valve between the two；Working medium nacelle is fastenedly connected with propeller housing, and microfluidic components are through between the two；Assist gas reservoir and microfluidic components unicom；Working medium nacelle and microfluidic components unicom.Realize that nano-fluid microlayer model is generated and manipulated by microfluidic components, focus incident laser beams are realized by propeller housing inner surface speculum, nano-fluid microlayer model, which is strengthened to absorb irradiation laser and formed, to be acutely crushed, and impact propeller housing surface forms reaction propulsive force.Structure of the invention integration and functionalization feature are notable, and it is unique that propulsive working medium is chosen, and so that device is had the propulsion effect of high specific impulse, the heavy impulse coefficient of coup and high-energy conversion efficiency, while progradation being made to have controllable ability.
Description
Technical field
The present invention relates to a kind of new pattern laser micro propulsion device and methods, and the micro- liquid of nano-fluid is utilized more particularly to a kind of
The laser micro-propulsion device for dripping working medium, can be used as in orbit aerocraft vehicle out-driving, space transoportation and space junk refuse collection
Important means.Meanwhile the system can also play a significant role in the following far-reaching empty unmanned probing field.
Background technology
Inexpensive, highly reliable and fast reserve is always the developing direction of space flight Push Technology.Laser threat warner is with its energy
Two outstanding features being kept completely separate with working medium, the energy and aircraft, make propulsion system for the first time and meanwhile obtain ideal thrust and
It is possibly realized compared with high specific impulse.
The selection of working medium (target) is always one of the important research content of laser micro-propulsion technology.Propulsive working medium generally divides
For gas working medium, liquid working substance and solid working medium.Gas working medium generally have higher propulsion specific impulse, but impulse coupling coefficient compared with
It is small, while being not suitable for space environment, it cannot function as suitable working medium；Solid working medium and liquid working substance are due to physical property diversity, to pushing away
Adjustable range into performance parameter is wider, can obtain the specific impulse in wide range and impulse coupling coefficient.But relative to solid
Working medium, liquid working substance can generate bigger impulse coupling coefficient, and convenient for storage and supply, being that a kind of ideal laser is micro- pushes away
Into working medium.But liquid working substance causes its specific impulse smaller since the factors such as sputtering influence.The effective ways for improving specific impulse are to reduce to splash
Penetrating and reducing sputtering influences.The approach of sputtering is reduced at present mainly including changing working medium structural form and increasing working medium viscosity two
Kind.
Nano-fluid microlayer model is also referred to as colloid microlayer model, is the disperse nano particle inside traditional microlayer model.Laser irradiates
Local plasmon resonance phenomenon can be formed in nano grain surface, this plasmon collective oscillation behavior can be greatly strong
Change the assimilation effect of laser energy, local TRANSIENT HIGH TEMPERATURE vacuum environment can be formed around nano particle, lead to bubble formation.It receives
The local surface phasmon oscillation of rice grain and bubble cavitation can cause nano-fluid microlayer model broken strong and thoroughly, be crushed
Microlayer model can generate extremely strong reaction force in very short time to propeller housing.Nano particle microlayer model is in laser effect of irradiation
Under features described above by the impulse coupling coefficient for making the laser micro-propulsion device, specific impulse and energy conversion efficiency obtain synthesis carry
It is high.
Invention content
The technical problem to be solved by the present invention is to：Overcome the deficiencies in the prior art proposes a kind of micro- based on nano-fluid
The laser micro-propulsion device and method of drop working medium utilizes the local surface plasma excimer of laser and nano-fluid microlayer model
Effect and bubble cavitation effect improve laser energy conversion deposition efficiency and working medium utilization ratio, realize laser micro-propulsion device
Big impulse coupling coefficient, high specific impulse and energy conversion efficiency.
The present invention includes following technical solution：A kind of laser micro-propulsion device based on nano-fluid microlayer model working medium, packet
Include propeller housing, working medium nacelle, auxiliary gas reservoir, microfluidic components；Wherein, auxiliary gas reservoir is used with working medium nacelle
Integrated design realizes unicom by regulating valve between the two；Working medium nacelle is fastenedly connected with propeller housing, microfluidic components
Through between the two；Assist gas reservoir and microfluidic components unicom；Working medium nacelle and microfluidic components unicom.
The propeller housing uses parabola low-resistance shape, in propeller housing inner surface arranged for interval for being aggregated into
Penetrate the speculum at laser facula to focal point；Mirror surface sprays super-hydrophobic coat.
The working medium nacelle is fastenedly connected with propeller housing by screw shell realization, working medium nacelle and auxiliary gas storage
Tank realizes integrated design and assembling, bottom filling nano fluid working medium, top filling auxiliary gas.
The microfluidic components include gas piping, microchannel and regulating valve, gas piping and microchannel crossover location shape
At connection through-hole, regulating valve controls gas piping internal gas pressure, realizes nano-fluid inside microchannels controllable flow and receives
Meter Liu Ti microlayer models controllably generate.
The working medium nacelle is fastenedly connected with propeller housing, and the microchannel of microfluidic components is through between the two；It is auxiliary
The gas piping of gas reservoir and microfluidic components is helped to realize unicom by regulating valve；Lead between working medium nacelle and microfluidic components
It crosses gas passage and realizes auxiliary gas unicom, and the unicom with nano fluid working medium is realized by microchannel.
A method of the laser micro-propulsion based on nano-fluid microlayer model working medium being carried out using above-mentioned apparatus, step is such as
Under：
1) microfluidic components generate microlayer model and are transported to propeller housing incident ray focal position；
2) incident pulse laser irradiates propeller housing, irradiates microlayer model in focal position；
3) microlayer model absorb laser energy, reach microlayer model be crushed threshold value when, microlayer model acutely be crushed and impact propeller
Shell forms forward thrust；
4) within the incident laser pulse period, new microlayer model generates, and new pulsed laser beam is incident, forms new push away
Power.
The process that the microfluidic components generate microlayer model is：Microfluidic components are using auxiliary gas in gas piping to micro-
The shearing force and driving force that nano-fluid generates in channel generate microlayer model.
The nano fluid working medium selects gold nano fluid or silver nanoparticle fluid.
Compared with the prior art, the invention has the advantages that：The present invention is using nano-fluid microlayer model working medium, micro-fluidic
Component and the design of propeller housing internal reflection surface greatly enhance laser convergence, laser energy deposition effect and energy and turn
Change efficiency, realize continuously generating and controllably exporting for propulsive working medium microlayer model, local surface that laser is generated with working medium etc. from
Sub- excimer effect and bubble cavitation effect, which can integrate, improves device impulse coupling coefficient, specific impulse and energy conversion efficiency；It is broken
Water droplet and the hair force effect for promoting enclosure interior mirror surface to generate also play promotion to propulsive performance synthesis raising and make
With.
Description of the drawings
Fig. 1 is the laser micro-propulsion schematic device of the present invention.
Fig. 2 is the laser micro-propulsion device microfluidic components schematic diagram of the present invention.
Specific implementation mode
Your, to enable auditor to have further understanding to feature, purpose and the function of the present invention and understanding, hereafter will
In conjunction with specific embodiment, the design philosophy of the present invention is illustrated, so that auditor will be seen that the features of the present invention,
Detailed description is presented below：
Laser micro-propulsion device based on nano-fluid microlayer model working medium includes mainly propeller housing, working medium nacelle, auxiliary
Help gas reservoir, microfluidic components and nano fluid working medium.
Propeller housing uses the low aerodynamic drag configuration design scheme of the paraboloid of revolution, shell inner surface arranged for interval high anti-
Rate minute surface is penetrated, specular surface applies super-hydrophobic coat, and injection fluid is avoided to cause specular reflectivity to reduce in minute surface adherency.Injection
Microlayer model generates microthrust with mirror surface protrusion reaction force.Filling nano-fluid propulsive working medium and auxiliary inside working medium nacelle
Gas (such as nitrogen), nacelle is effectively connect with propeller housing and internal unicom, ensures that nano-fluid microlayer model transfer passages are smooth
It is logical.Assist gas reservoir and working medium nacelle integrated design, between connect regulating valve 1, assist gas inside controlled medium nacelle
Pressure.Microfluidic components main function is to transport nano-fluid and generate microlayer model.Microfluidic components include mainly microchannel, gas
Body pipeline and regulating valve 2.Microchannel mainly transports nano fluid working medium under auxiliary gas pressure effect, and scale is in micron
Magnitude；Gas pipeline is will to assist gas transport to circulation duct in working medium nacelle, by assisting the gas pressure of gas and cutting
Shear force generates microlayer model.Gas piping forms connection through-hole with microchannel crossover location, provides shearing force；Regulating valve 2 acts on
It is to adjust gas piping internal gas pressure, by coordinating to control with regulating valve 1, it is made to generate one with nano-fluid mobilization dynamic
Level pressure force difference, it is ensured that generate controllable microlayer model in microchannel connection through hole.Assist gas reservoir by regulating valve 2 with it is micro-fluidic
The gas piping of component is connected, and gas pressure intensity is assisted inside adjusting control gas piping.Nano fluid working medium is mainly as pushing away
Into working medium target, ablation is provided and is crushed propulsive thrust, aqueous solvent internal mix nano particle (such as Jenner can be used in nano fluid working medium
Rice grain, silver nano-grain and non pinetallic nano particle etc.), the parameters such as nano-fluid concentration and nanoparticle type, grain size
Selection can be based on laser wavelength of incidence and irradiation laser power density is chosen.When incident laser radiation nano-fluid microlayer model,
When optical maser wavelength is mutually matched with nanoparticle absorbance peak, nano grain surface forms local surface plasmon resonance, at this time
Reach best match effect.
Laser micro-propulsion device groundwork flow based on nano-fluid microlayer model working medium is：Microfluidic components will first
Microlayer model is transported to propeller housing incident ray focal position, and incident pulse laser irradiates propeller housing, in focal position
Irradiate microlayer model, microlayer model absorb laser energy, reach microlayer model be crushed threshold value when, microlayer model acutely be crushed and impact propeller
Shell forms forward thrust；Within the incident laser pulse period, new microlayer model generates, and new pulsed laser beam is incident, shape
The thrust of Cheng Xin.
Laser micro-propulsion device microlayer model based on nano-fluid microlayer model working medium generates principle：Microfluidic components utilize
Auxiliary gas generates microlayer model to the shearing force and driving force of nano-fluid generation in microchannel in gas piping；Wherein, it shears
The size of power and driving force is controlled by the pressure difference between regulating valve 1 and regulating valve 2 and is realized, the flowing velocity of nano-fluid passes through
The control of regulating valve 1 auxiliary gas pressure is to achieve the purpose that control continuous fluid flowing velocity.
In conclusion the present invention provides the laser micro-propulsion device based on nano-fluid microlayer model working medium, swashed using pulse
Illumination is mapped to the local plasmon resonance phenomenon and bubble cavitation phenomenon of nano-fluid microlayer model generation, is greatly improved and is illuminated
The laser light absorbing efficiency of working medium and broken shock loading, it is comprehensive to improve impulse coupling coefficient, specific impulse and energy conversion efficiency；Together
When, dexterously micro-fluidic mentality of designing greatly can avoid working medium from wasting, and improve working medium utilization ratio.Therefore, device has very
Strong competitiveness meets novelty, creativeness, practical requirement that patented invention requirement has.
Claims (8)
1. a kind of laser micro-propulsion device based on nano-fluid microlayer model working medium, it is characterised in that：Including propeller housing, work
Matter nacelle, auxiliary gas reservoir, microfluidic components；Wherein, auxiliary gas reservoir uses integrated design, the two with working medium nacelle
Between unicom realized by regulating valve；Working medium nacelle is fastenedly connected with propeller housing, and microfluidic components are through between the two；
Assist gas reservoir and microfluidic components unicom；Working medium nacelle and microfluidic components unicom.
2. a kind of laser micro-propulsion device based on nano-fluid microlayer model working medium according to claim 1, feature exist
In：The propeller housing uses parabola low-resistance shape, incident sharp for converging in propeller housing inner surface arranged for interval
Speculum at light hot spot to focal point；Mirror surface sprays super-hydrophobic coat.
3. a kind of laser micro-propulsion device based on nano-fluid microlayer model working medium according to claim 1, feature exist
In：The working medium nacelle is fastenedly connected with propeller housing by screw shell realization, and working medium nacelle and auxiliary gas reservoir are real
Existing integrated design and assembling, bottom filling nano fluid working medium, top filling auxiliary gas.
4. a kind of laser micro-propulsion device based on nano-fluid microlayer model working medium according to claim 1, feature exist
In：The microfluidic components include gas piping, microchannel and regulating valve, and gas piping is formed with microchannel crossover location and connected
Through-hole, regulating valve control gas piping internal gas pressure, realize nano-fluid inside microchannels controllable flow and nano-fluid
Microlayer model controllably generates.
5. a kind of laser micro-propulsion device based on nano-fluid microlayer model working medium according to claim 4, feature exist
In：The working medium nacelle is fastenedly connected with propeller housing, and the microchannel of microfluidic components is through between the two；Assist gas
Storage tank and the gas piping of microfluidic components realize unicom by regulating valve；Pass through gas between working medium nacelle and microfluidic components
Auxiliary gas unicom is realized in channel, and realizes the unicom with nano fluid working medium by microchannel.
6. according to a kind of arbitrary laser micro-propulsion devices based on nano-fluid microlayer model working medium of claim 1-5,
It is characterized in that：The nano fluid working medium selects gold nano fluid or silver nanoparticle fluid.
7. a kind of method carrying out the laser micro-propulsion based on nano-fluid microlayer model working medium using above-mentioned apparatus, it is characterised in that
Steps are as follows：
1) microfluidic components generate microlayer model and are transported to propeller housing incident ray focal position；
2) incident pulse laser irradiates propeller housing, irradiates microlayer model in focal position；
3) microlayer model absorbs laser energy, and when reaching microlayer model and being crushed threshold value, microlayer model is acutely crushed and impacts propeller housing,
Form forward thrust；
4) within the incident laser pulse period, new microlayer model generates, and new pulsed laser beam is incident, forms new thrust.
8. a kind of method of laser micro-propulsion based on nano-fluid microlayer model working medium according to claim 7, feature
It is：The process that the microfluidic components generate microlayer model is：Microfluidic components are using auxiliary gas in gas piping to micro- logical
The shearing force and driving force that nano-fluid generates in road generate microlayer model.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810189394.8A CN108516108B (en) | 2018-03-06 | 2018-03-06 | Laser micro-propulsion device and method based on nano-fluid micro-droplet working medium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810189394.8A CN108516108B (en) | 2018-03-06 | 2018-03-06 | Laser micro-propulsion device and method based on nano-fluid micro-droplet working medium |
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| CN111173698A (en) * | 2018-11-09 | 2020-05-19 | 哈尔滨工业大学 | Liquid working medium plasma thruster based on microwave enhancement |
| CN111516906A (en) * | 2019-02-02 | 2020-08-11 | 中国科学院宁波材料技术与工程研究所 | Flight method and flight device |
| CN115092422A (en) * | 2022-05-23 | 2022-09-23 | 中国人民解放军战略支援部队航天工程大学 | Preparation method and production device of supply disc for double-layer target belt of laser micro thruster |
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| CN115092422A (en) * | 2022-05-23 | 2022-09-23 | 中国人民解放军战略支援部队航天工程大学 | Preparation method and production device of supply disc for double-layer target belt of laser micro thruster |
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