JPS62240840A - Measurement for size distribution of rain particle - Google Patents
Measurement for size distribution of rain particleInfo
- Publication number
- JPS62240840A JPS62240840A JP8526686A JP8526686A JPS62240840A JP S62240840 A JPS62240840 A JP S62240840A JP 8526686 A JP8526686 A JP 8526686A JP 8526686 A JP8526686 A JP 8526686A JP S62240840 A JPS62240840 A JP S62240840A
- Authority
- JP
- Japan
- Prior art keywords
- rain
- diameter
- filter paper
- water
- volume
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002245 particle Substances 0.000 title claims abstract description 12
- 238000005259 measurement Methods 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 5
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- XOSXWYQMOYSSKB-LDKJGXKFSA-L water blue Chemical compound CC1=CC(/C(\C(C=C2)=CC=C2NC(C=C2)=CC=C2S([O-])(=O)=O)=C(\C=C2)/C=C/C\2=N\C(C=C2)=CC=C2S([O-])(=O)=O)=CC(S(O)(=O)=O)=C1N.[Na+].[Na+] XOSXWYQMOYSSKB-LDKJGXKFSA-L 0.000 abstract 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 150000001448 anilines Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013208 measuring procedure Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0618—Investigating concentration of particle suspensions by collecting particles on a support of the filter type
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、例えば人工降雨装置に適用される降雨粒径分
布計測方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rain droplet size distribution measuring method applied to, for example, an artificial rainfall device.
［従来の技術］
従来、人工降雨装置等において、その降雨状態すなわち
降雨粒径分布を計測するには、写真による直接計測が考
えられるが公表例をみない。[Prior Art] Conventionally, in order to measure the rain condition, that is, the rain droplet size distribution, in an artificial rain device or the like, direct measurement using photographs has been considered, but no published examples have been found.
さらに、小さな霧粒子ではレーザーを用いて計測されて
いるが、雨滴径程度の粒子については簡便な方法はなか
りた。Furthermore, although small fog particles are measured using lasers, there is no simple method for measuring particles the size of raindrops.
［発明が解決しようとする問題点］
例えば、航空機は飛行中に雨に衝突するが、その雨滴に
よって航空様の前縁部が浸触される。[Problems to be Solved by the Invention] For example, an aircraft encounters rain during flight, and the leading edge of the aircraft is impinged by the raindrops.
この浸触状態は、雨の径によりて異なる。したがりて、
単位時間内に衝突する雨粒の大きさとその個数を知る必
要があった。This state of infiltration varies depending on the diameter of the rain. Therefore,
It was necessary to know the size and number of raindrops that collide within a unit of time.
しかしながら、前述のように雨滴の簡便な計測方法は従
来はなかった。However, as mentioned above, there has been no simple method for measuring raindrops.
したがって、本発明においては、雨滴粒子の粒径分布を
簡便に測定することのできる降雨粒径分布方法を提供す
ることを技術的課題とする。Therefore, the technical object of the present invention is to provide a rain droplet size distribution method that can easily measure the particle size distribution of raindrop particles.
［問題点を解決するための手段］
本発明の降雨粒径分布計測方法は、以下の手順よりなる
。[Means for Solving the Problems] The rain droplet size distribution measuring method of the present invention consists of the following steps.
アニリンプルの粉末を含浸させた濾紙に予め体積（Ｖ）
の計量された水を滴下して円形の青色痕跡を作り、この
円の直径（Ｄ）と水の体積（Ｖ）との関係を求め、さら
に、■＝晋φ３としてφとＤとの関係を求め、計量すべ
き降雨中に、前記濾紙を入れ、青色に変色した円形の径
が読み取れる範囲で出来る限り多くの水滴を捕え、捕え
た水滴の前記濾紙上での直径を読み取シ、次式（Ｎ４：
Ｆ紙上に残された円形成の径Ｄφをもつ水滴個数、Ｈ；
降雨量（ｍ／時間） −ｗ ： Ｆ紙上径φをもつ雨の
降下速度）
によシ単位体積当りに含まれる降雨の粒径分布を求める
。Preliminary volume (V) of filter paper impregnated with aniline powder
Drop the measured amount of water to create a circular blue trace, find the relationship between the diameter of this circle (D) and the volume of water (V), and further calculate the relationship between φ and D by assuming ■ = Jinφ3. Insert the filter paper into the rainfall to be determined and measured, capture as many water droplets as possible within the range where the diameter of the blue-colored circle can be read, and read the diameter of the captured water droplets on the filter paper. N4:
F Number of water droplets with diameter Dφ of circle formation left on paper, H;
Rainfall amount (m/hour) -w: Falling speed of rain with paper diameter φ) Find the particle size distribution of rain contained per unit volume.
［実施例］
以下、本発明の降雨粒径分布計測方法について説明する
。[Example] Hereinafter, a rain droplet size distribution measuring method of the present invention will be described.
本発明の降雨粒径分布計測方法は次のような計測手順に
よってなされる。すなわち、１）雨量計で雨量（Ｈｍ
／ｓｅｅ ）を計測する。The rain droplet size distribution measuring method of the present invention is performed by the following measuring procedure. In other words, 1) Rainfall (Hm) using a rain gauge
/see).
２）、ｆソリン等揮発性の高い液体にアニリンゾルの粉
末を混合し、吸水性のある濾紙をこの混合液にひたした
後、引き上げて乾燥させ水滴径計測用のアニリンプル濾
紙を作る。この濾紙は吸水すると白色から青色に変色す
る。2) Mix aniline sol powder with a highly volatile liquid such as f-solin, soak a water-absorbent filter paper in the mixture, pull it up and dry it to make an aniline sol filter paper for measuring the diameter of water droplets. When this filter paper absorbs water, it changes color from white to blue.
３）このアニリンプル濾紙に、例えばマイクロピペット
で予め体積（Ｖｍ）の計量された水を滴下し、青色の円
形痕跡の径（Ｄｍ）を読み取り、体積Ｖｍ径りの関係を
求めた上、雨滴を球とみなし滴球径（φｍ）との関係を
ｖ＝二φ３とし、φｍりの関係を数式化する。3) Drop a pre-measured volume (Vm) of water onto this aniline filter paper using, for example, a micropipette, read the diameter (Dm) of the blue circular trace, find the relationship between the volume Vm and the diameter, and then filter the raindrops. The relationship between the sphere and the assumed droplet sphere diameter (φm) is set as v=2φ3, and the relationship between φm and φm is expressed as a formula.
４）上記アニリンプルｆ紙を、降雨中に任意の時間（’
ｐａｎｅ）セットし、その雨滴径を濾紙に付いた青い痕
跡から求め、径φをもつ滴の個数Ｎａを求めるＵＰ紙の
面積Ｓ ｍ２ｗ Ｔ ｓｅｅ当りの個数で径φごと又は
径φ、〜φ２＝Δφごとに求める）。4) The above aniline pull f paper is heated for an arbitrary period of time ('
(pane), find the diameter of the raindrops from the blue traces on the filter paper, and find the number Na of drops with diameter φ. Number of drops per area of UP paper S m2w T see for each diameter φ or diameter φ, ~φ2= (obtained for each Δφ).
５）アニリンプル濾紙に含まれた径φごとの総画ｉ Ｑ
’＄ ｍ／ｓｏｅを次式により求める。5) Total image i Q for each diameter φ included in the aniline filter paper
'$ m/soe is determined by the following formula.
Ｑ’＃ ” ”＄帽φン（Ｓ−Ｔ）
（但し、ここではＴは不確定なのでＱ′１ＩＩ４１不確
定）
６） Ｑ’、６と雨量Ｈの関係は、
■＝ΣＱｉ
となる。Q'# ” ” $ φ (S-T) (However, since T is uncertain here, Q'1II41 is uncertain) 6) The relationship between Q', 6 and the amount of rainfall H is: ■=ΣQi.
７）径φをもつ雨滴の落下速度υ１Ｖ−は、雨滴径ｌｌ
ｌ１１〜３Ｗ程度の範囲では、正号重方著「気象学総論
」地人書館第１１６頁第５，６表によれば、ｔｌぼτφ
＝４．ＩＸφ である。7) The falling speed υ1V- of a raindrop with diameter φ is the raindrop diameter ll
In the range of l11 to 3W, according to Tables 5 and 6 of "Meteorology General Theory" by Shigekata Masaaki, Chijinshokan, page 116, tlboτφ
=4. IXφ.
８）径φの雨滴の単位体積当りの個数（ｎφ）は、 ｎφ＝Ｎ’、／νφ・Ｔ−８ となる。8) The number of raindrops with diameter φ per unit volume (nφ) is nφ=N', /νφ・T-8 becomes.
９） ５）、６）よシＳＴＱ漬、 ＳＴΣＱｉとも計
測でき、ＳＴ：ＤＱ−＝Ｗとする。また、’ＥＱ’＠＝
１’が計測できるので、
５Ｔ＝＝百
となる。9) 5), 6) Both STQ and STΣQi can be measured, and ST:DQ-=W. Also, 'EQ'@=
Since 1' can be measured, 5T==100.
１０） ８）より ｎφ ＝ Ｎａ會Ｈ／（マφ・Ｗ） となる。10) From 8) nφ = Nakai H/(Maφ・W) becomes.
とのｎφは、径φをもつ雨滴の空中単位体積あたシの径
分布を与える。nφ gives the diameter distribution per unit volume in the air of a raindrop with diameter φ.
次に、上記降雨粒径分布計測方法の具体的な適用例を以
下に示す。Next, a specific application example of the above-mentioned rain droplet size distribution measuring method will be shown below.
■ 雨滴衝突試験装置（特願昭５９−６０６０５〜６０
６０９号明細書参照）の人工降雨状態を計測し、自然画
との対応をつけた（５９．８月〜６０゜１２月）。■ Raindrop collision test device (patent application 1986-60605-60)
The state of artificial rainfall was measured (see the specification of No. 609), and the correspondence with natural images was added (August 1959 to December 60).
く人工降雨例〉
■ 水噴出式航空機エンジンラン用すイレンサの周辺に
おいて、水滴拡散分布とその量を計測（径分布から逆算
）シ、水滴拡散防止の資とした（６０年３月）。Example of artificial rain〉 ■ The water droplet diffusion distribution and its amount were measured (calculated backward from the diameter distribution) around a water jet type aircraft engine run silencer to help prevent water droplet diffusion (March 1960).
■ その他、本発明は水タンクの水漏れ量の検知等にも
適用できる。(2) In addition, the present invention can also be applied to detecting the amount of water leaking from a water tank.
［発明の効果］
以上のように本発明によれば、地上では降雨の降下速度
が雨滴径によって一定していることと、濾紙による雨滴
径及び雨量計測に加え、ビー力等による通常の雨量計測
を併用するもので、簡便な方法で雨滴径分布を求めるこ
とができる。[Effects of the Invention] As described above, according to the present invention, the falling speed of rain on the ground is constant depending on the diameter of raindrops, and in addition to measuring the diameter of raindrops and rainfall using filter paper, it is possible to measure rainfall normally using bee force, etc. It is possible to obtain the raindrop size distribution in a simple way.
Claims (1)
の計量された水を滴下して円形の青色痕跡を作り、この
円の直径（Ｄ）と水の体積（Ｖ）との関係を求め、さら
に、Ｖ＝（π／６）φ＾３としてφとＤとの関係を求め
、計量すべき降雨中に、前記濾紙を入れ、青色に変色し
た円形の径が読み取れる範囲で出来る限り多くの水滴を
捕え、捕えた水滴の前記濾紙上での直径を読み取り、次
式ｎ＿φ＝（Ｎ′＿φ・Ｈ）／（ν＿φ・Ｗ）個／ｍ＾
３（Ｎ′＿φ；濾紙上に残された円形痕の径Ｄ＿φをも
つ水滴個数、Ｈ；降雨量（ｍ／時間）、Ｗ；濾紙上に捕
えられた総雨量［＝Σ＿φＮ′＿φ×（π／６）φ＾３
］、υ＿φ；粒径φをもつ雨の降下速度） により単位体積当りに含まれる降雨の粒径分布を求める
ことを特徴とする降雨粒径分布計測方法。[Claims] Filter paper impregnated with aniline bullion powder has a volume (V) in advance.
Drop a measured amount of water to create a circular blue trace, find the relationship between the diameter of this circle (D) and the volume of water (V), and further calculate φ as V = (π/6)φ^3. Find the relationship between Read, the following formula n_φ = (N'_φ・H) / (ν_φ・W) pieces/m^
3(N'_φ: Number of water droplets with diameter D_φ of circular traces left on filter paper, H: Rainfall amount (m/hour), W: Total amount of rain captured on filter paper [=Σ_φN'_φ×(π /6)φ^3
], υ_φ; descending speed of rain having particle size φ) A rain particle size distribution measuring method characterized by determining the particle size distribution of rain contained per unit volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8526686A JPS62240840A (en) | 1986-04-14 | 1986-04-14 | Measurement for size distribution of rain particle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8526686A JPS62240840A (en) | 1986-04-14 | 1986-04-14 | Measurement for size distribution of rain particle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62240840A true JPS62240840A (en) | 1987-10-21 |
Family
ID=13853772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8526686A Pending JPS62240840A (en) | 1986-04-14 | 1986-04-14 | Measurement for size distribution of rain particle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62240840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494622A (en) * | 2011-12-09 | 2012-06-13 | 北京航空航天大学 | Water drop diameter measuring method |
-
1986
- 1986-04-14 JP JP8526686A patent/JPS62240840A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102494622A (en) * | 2011-12-09 | 2012-06-13 | 北京航空航天大学 | Water drop diameter measuring method |
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