CN108476836A - A method of the quiet steady atmospheric boundary layer of disturbance - Google Patents
A method of the quiet steady atmospheric boundary layer of disturbance Download PDFInfo
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- CN108476836A CN108476836A CN201810194769.XA CN201810194769A CN108476836A CN 108476836 A CN108476836 A CN 108476836A CN 201810194769 A CN201810194769 A CN 201810194769A CN 108476836 A CN108476836 A CN 108476836A
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- air
- boundary layer
- atmospheric boundary
- quiet steady
- disturbing
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G15/00—Devices or methods for influencing weather conditions
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- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Environmental Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of method of the quiet steady atmospheric boundary layer of disturbance of the application, in several high speed whirlpool paddle fans of ground configuration, air is sprayed upwards with very big speed, and a large amount of air is pushed to upper atmosphere, surrounding air convergence and makes up the big unsaturated vapor in center, peripheral air decline makes up convergence lack of air, in 35 kilometers of a small ranges, air forms convection current up and down, reaches certain scale, air levels can be promoted to exchange to a certain extent, abolish the inversion structure of air.
Description
Technical field
This application involves a kind of method of quiet steady atmospheric boundary layer of disturbance more particularly to a kind of utilization high speed air jet stream are dynamic
The method of quiet steady atmospheric boundary layer.
Background technology
Jet stream refers to fluid and is projected from nozzle, aperture, slit, or leans on mechanical driven, and with a plume of surrounding fluid blending
Body flows.The large Reynold number jet stream frequently encountered is usually the free turbulence constrained without Gu Bi.This turbulent jet passes through boundary
Surrounding fluid volume is sucked in and is constantly expanded by upper active turbulent closure scheme, and cocurrent is downstream.Jet stream is in water pump, steam pump, logical
Many technical fields such as wind turbine, chemical industry equipment and jet plane are used widely.
When fluid is injected in static situation, its discontinuity surface between surrounding static fluid there are speed not etc., discontinuity surface
It generally inevitably being interfered, loses and stablize and generate vortex, volume inhales surrounding fluid into incident flow, while constantly mobile,
Deformation, division generate turbulent fluctuation, influence gradually to develop the mixed layer for forming free turbulent fluctuation inside and outside.Due to the transverse direction of momentum
It transmits, the fluid being involved in obtains momentum with former jet stream flow forward, and fluid momentum originally reduces and loses speed, and forms one
Fixed velocity gradient.Volume inhale and blending as a result, jet flow section constantly expands, and flow velocity then constantly reduces, and flow is along Cheng Zengjia.
Temperature inversion：Troposphere is since heat is mainly directly from terrestrial surface radiation, so height above sea level is higher, temperature is lower.One
As in the case of, height above sea level often rises 1000 meters, 6 DEG C of mercury dropped.Sometimes there are following situations：1. altitude increase, temperature increases；
2. 1000 meters of altitude increase, mercury dropped amplitude is less than 6 DEG C.Here it is temperature inversions.Temperature inversion tends to occur near the ground
When temperature is relatively low, such as the morning in winter.Temperature inversion makes air convection movement weaken, and the pollutant in air is not easy to expand
It dissipates, atmospheric environment is poor.
0.3-0.4 DEG C of lapse-rate of air temperature average out to/100m of troposphere lower layer (by ground to 2km).But due to gas-bearing formation by
The ground gain of heat and cooling influence are very big, the lapse-rate of air temperature everywhere surface properties, season, round the clock with the variation of weather condition also very
Greatly.For example, daytime summer, big land, when clear sky is cloudless, the ground tempestuously gain of heat, bottom is (from ground to 300-500m
Highly) lapse-rate of air temperature can be more than dry adiabatic rate (up to 1.2-1.5 DEG C/100m).But under certain condition, in troposphere
It will appear temperature with highly increasing and raised temperature inversion.Causing the condition of inversion is, terrestrial surface radiation is cooling, air advection is cold
But, air sinking heats, air turbulence mixes etc..
Inversion layer refers to the layer band for the phenomenon that temperature increases with height in atmosphere convection layer.Temperature is generally with height in troposphere
Increase and reduce, but since weather and orographic condition influence, it sometimes appear that the phenomenon that temperature increases with height and increased.But nothing
By inversion caused by that condition, all have a certain impact to weather.Terrestrial surface radiation cooling, air Advective cooling, air sink
Heat, air turbulence mixing etc..Under by the ridge of high pressure (such as subtropical ridge, continental anticyclone is gone down south) or tropical cyclone periphery
Heavy flow area has the opportunity to inversion layer occur under dominating.Inversion layer can hinder air to make ascending motion, aggravate air pollution.Example
Such as, it can hinder the development that air moves vertically, and make a large amount of cigarettes, dirt, the aggregation of condensation vapor object in its lower section, visibility is made to become
It is bad etc..Inversion layer causes very big harm to people's health.In order to avoid its adverse effect as possible, human environment is protected,
Safeguarding the safety of people's lives and properties, on the one hand we must understand the inversion layer in lower atmosphere layer in detail, find out its regularity,
Reliable meteorological foundation could be provided in this way for air conservation.On the other hand, necessary measure is taken, by every means
Prevent the generation of inversion layer.
Apply for content
The application technical problems to be solved are to provide a kind of method of the quiet steady atmospheric boundary layer of disturbance.
In order to solve the above-mentioned technical problem, a method of the quiet steady atmospheric boundary layer of disturbance, the method is, on ground
It arranges the whirlpools Duo Tai paddle fan, sprays upwards, in whirlpool paddle fan top formation air-flow rising area, under the air of air-flow rising area periphery
Drop forms air-flow descending area.
Preferably, the whirlpools the Duo Tai paddle fan is distributed rectangular layout.
Preferably, the height of jet of the whirlpool paddle fan is 1500m, jet velocity 340*0.8m/s.
Preferably, the method using whirlpool paddle fan specifically, generate lasting jet stream vertically upward.
Preferably, the jet stream width of whirlpool paddle fan is 350m.
Preferably, the diameter range of the air-flow rising area and air-flow descending area is 3~5 kilometers.
Preferably, the whirlpool paddle fan includes propeller, the gas generator for driving the propeller, retarder,
The propeller is connect by retarder with the gas generator.
A kind of method of the quiet steady atmospheric boundary layer of disturbance of the application, in several high speed whirlpool paddle fans of ground configuration, with
Very big speed sprays air upwards, and a large amount of air is pushed to upper atmosphere, surrounding air convergence and to make up center big
Unsaturated vapor, peripheral air decline makes up convergence lack of air, and in 3-5 kilometers of a small ranges, air forms convection current up and down, reaches one
Fixed scale can promote air levels to exchange, abolish the inversion structure of air to a certain extent.
Description of the drawings
Fig. 1 is a kind of schematic diagram of the quiet steady atmospheric boundary layer of disturbance.
Specific implementation mode
The application is described further in the following with reference to the drawings and specific embodiments, so that those skilled in the art can be with
It more fully understands the application and can be practiced, but illustrated embodiment is not as the restriction to the application.
As shown, in the presence of having inversion layer, under 3 kilometers of height, stratification of atmosphere schematic diagram, bottom is cold sky
Gas, middle level are hot-air, form opposite inversion layer, and the interaction of air levels is affected.
A kind of method of the quiet steady atmospheric boundary layer of disturbance of the application, in several high speed whirlpool paddle fans of ground configuration, with
Very big speed sprays air upwards, and a large amount of air is pushed to upper atmosphere, surrounding air convergence and to make up center big
Unsaturated vapor, peripheral air decline makes up convergence lack of air, and in 3-5 kilometers of a small ranges, air forms convection current up and down, reaches one
Fixed scale can promote air levels to exchange, abolish the inversion structure of air to a certain extent.
In a preferred embodiment, the whirlpools the Duo Tai paddle fan is distributed rectangular layout, is generated using whirlpool paddle fan
The height of jet of lasting jet stream vertically upward, the whirlpool paddle fan is 1500m, jet velocity 340*0.8m/s.Paddle wind
The jet stream width of fan is 350m.
The whirlpool paddle fan includes propeller, the gas generator for driving the propeller, retarder, the spiral shell
Paddle is connect by retarder with the gas generator.The both low oil consumption with turbo oar engine of the whirlpool paddle fan of the application,
Have the characteristics that fanjet is suitable for high-speed flight again.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the application, the protection model of the application
It encloses without being limited thereto.Those skilled in the art on the basis of the application made by equivalent substitute or transformation, in the application
Protection domain within.The protection domain of the application is subject to claims.
Claims (7)
1. a kind of method of the quiet steady atmospheric boundary layer of disturbance, which is characterized in that the method is, in the whirlpools ground configuration Duo Tai paddle
Fan sprays upwards, forms air-flow rising area on whirlpool paddle fan top, the air drop of air-flow rising area periphery forms air-flow
Descending area.
2. the method for disturbing quiet steady atmospheric boundary layer as described in claim 1, which is characterized in that the whirlpools the Duo Tai paddle fan point
The rectangular layout of cloth.
3. the method for disturbing quiet steady atmospheric boundary layer as described in claim 1, which is characterized in that the whirlpool paddle fan is penetrated
Stream height is 1500m, jet velocity 340*0.8m/s.
4. the method for disturbing quiet steady atmospheric boundary layer as described in claim 1, which is characterized in that the method specifically,
Lasting jet stream vertically upward is generated using whirlpool paddle fan.
5. the method for disturbing quiet steady atmospheric boundary layer as claimed in claim 4, which is characterized in that the jet stream width of whirlpool paddle fan
For 350m.
6. the method for disturbing quiet steady atmospheric boundary layer as described in claim 1, which is characterized in that the air-flow rising area and
The diameter range of air-flow descending area is 3~5 kilometers.
7. the method for disturbing quiet steady atmospheric boundary layer as described in claim 1, which is characterized in that the whirlpool paddle fan includes
Propeller, the gas generator for driving the propeller, retarder, the propeller are sent out by retarder and the combustion gas
Raw device connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194769.XA CN108476836A (en) | 2018-03-09 | 2018-03-09 | A method of the quiet steady atmospheric boundary layer of disturbance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194769.XA CN108476836A (en) | 2018-03-09 | 2018-03-09 | A method of the quiet steady atmospheric boundary layer of disturbance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108476836A true CN108476836A (en) | 2018-09-04 |
Family
ID=63338560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810194769.XA Pending CN108476836A (en) | 2018-03-09 | 2018-03-09 | A method of the quiet steady atmospheric boundary layer of disturbance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108476836A (en) |
-
2018
- 2018-03-09 CN CN201810194769.XA patent/CN108476836A/en active Pending
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180904 |
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| RJ01 | Rejection of invention patent application after publication |