【摘要】：水下氣體射流作為復(fù)雜的兩相流動,在工程、冶金、國防等領(lǐng)域具有廣泛的應(yīng)用。近年來由于同心筒發(fā)射裝置的應(yīng)用與破水發(fā)射概念的提出,對水下氣體射流的研究受到高度重視。然而對水下氣體射流的研究更多的集中在圓形截面噴管與超聲速工況下,對于環(huán)形截面噴管以及低速泡流態(tài)的水下氣體射流的研究有待深入。本文主要采用數(shù)值模擬的方法分別對圓形和環(huán)形截面在亞聲速、跨聲速和超聲速三種工況下的水下氣體射流形態(tài)進(jìn)行研究。主要的研究內(nèi)容和工作包括:(1)建立了一套適合的柱形水下氣體射流和環(huán)形水下氣體射流數(shù)值模擬模型,并結(jié)合實(shí)驗(yàn)結(jié)果對數(shù)值模擬的模型進(jìn)行了可靠性驗(yàn)證。(2)針對噴管噴出的氣流速度為100m/s、340m/s、680m/s三種工況下的柱形水下氣體射流和環(huán)形水下氣體射流進(jìn)行數(shù)值模擬研究。(3)對柱形水下氣體射流和環(huán)形水下氣體射流的形態(tài)發(fā)展過程和發(fā)展過程中的物理現(xiàn)象進(jìn)行分析,同時(shí)對比分析兩種不同形態(tài)的水下氣體射流的異同。通過實(shí)驗(yàn)和數(shù)值模擬的結(jié)果表明:(a)柱形和環(huán)形水下氣體射流產(chǎn)生的氣泡在發(fā)展過程與整體的發(fā)展方向上相似;在環(huán)形射流中,氣流速度較低時(shí)出現(xiàn)不同于柱形射流球狀氣泡的類環(huán)狀結(jié)構(gòu)形態(tài)的氣泡;(b)在跨聲速工況開始出現(xiàn)回?fù)衄F(xiàn)象。隨著射流速度的增大,回?fù)衄F(xiàn)象發(fā)生的頻率增大。本文作為水下氣體射流研究的基礎(chǔ),為后續(xù)的水下氣體射流更進(jìn)一步的研究打下一定的基礎(chǔ)。
[Abstract]:As a complex two-phase flow, underwater gas jet has been widely used in engineering, metallurgy, national defense and other fields. In recent years, due to the application of concentric tube launcher and the concept of water-breaking emission, the research of underwater gas jet has been paid great attention to. However, the research of underwater gas jet is more focused on circular section nozzle and supersonic condition, and the research of circular section nozzle and low velocity bubble underwater gas jet need to be further studied. In this paper, numerical simulation is used to study the underwater gas jet patterns of circular and annular sections under three operating conditions: subsonic, transonic and supersonic. The main contents and work are as follows: (1) A set of numerical simulation models of cylindrical and annular underwater gas jets are established. Combined with the experimental results, the reliability of the numerical simulation model is verified. (2) the numerical simulation of the cylindrical underwater gas jet and the annular underwater gas jet under the three operating conditions of 100 m / s ~ 340m / s air velocity is carried out. (3) A numerical simulation study is carried out. (3) A numerical simulation study is carried out on a cylindrical underwater gas jet and an annular underwater gas jet under three operating conditions. The development process and physical phenomena of cylindrical underwater gas jet and annular underwater gas jet are analyzed. At the same time, the similarities and differences of two different forms of underwater gas jet are compared and analyzed. The experimental and numerical results show that the bubble produced by the (a) cylindrical and annular underwater gas jet is similar to the whole development direction in the annular jet. When the flow velocity is low, the annular bubble; (b), which is different from the cylindrical jet spherical bubble, appears the phenomenon of return stroke at transonic speed. With the increase of jet velocity, the frequency of return stroke increases. As the foundation of underwater gas jet research, this paper lays a foundation for the further study of underwater gas jet.
【學(xué)位授予單位】：太原理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：O358

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊志宏;李志闊;;巡航導(dǎo)彈水下發(fā)射技術(shù)綜述[J];飛航導(dǎo)彈;2013年06期

2 郭強(qiáng);施紅輝;王超;陳帥;董若凌;章利特;賈會霞;;水下超聲速氣體射流氣液兩相復(fù)雜流動研究[J];工程熱物理學(xué)報(bào);2012年05期

3 施紅輝;陳帥;董若凌;章利特;郭強(qiáng);賈會霞;王超;;水下超聲速氣體向上噴射時(shí)的動量射流特性研究[J];浙江理工大學(xué)學(xué)報(bào);2012年03期

4 郭強(qiáng);施紅輝;王超;賈會霞;;準(zhǔn)二維水下超聲速垂直過膨脹射流研究[J];實(shí)驗(yàn)流體力學(xué);2010年03期

5 馬溢清;李欣;;潛射導(dǎo)彈水下垂直發(fā)射方式綜述[J];戰(zhàn)術(shù)導(dǎo)彈技術(shù);2010年03期

6 施紅輝;王柏懿;戴振卿;;水下超聲速氣體射流的力學(xué)機(jī)制研究[J];中國科學(xué):物理學(xué) 力學(xué) 天文學(xué);2010年01期

7 杜文博;朱勝;孟凡軍;;水下切割技術(shù)研究及應(yīng)用進(jìn)展[J];焊接技術(shù);2009年10期

8 曹嘉怡;魯傳敬;李杰;陳鑫;;水下超聲速燃?xì)馍淞鲃恿W(xué)特性研究[J];水動力學(xué)研究與進(jìn)展A輯;2009年05期

9 魏海鵬;郭鳳美;權(quán)曉波;;水下氣體射流數(shù)值研究[J];導(dǎo)彈與航天運(yùn)載技術(shù);2009年02期

10 甘曉松;賈有軍;魯傳敬;曹嘉怡;;水下燃?xì)馍淞髁鲌鰯?shù)值研究[J];固體火箭技術(shù);2009年01期

相關(guān)會議論文 前3條

1 郭強(qiáng);王曉剛;施紅輝;王超;;近二維水下高速氣體射流動態(tài)不穩(wěn)定性的實(shí)驗(yàn)研究[A];第九屆全國水動力學(xué)學(xué)術(shù)會議暨第二十二屆全國水動力學(xué)研討會論文集[C];2009年

2 賀小艷;馬漢東;;水下氣體噴流形成初期的數(shù)值模擬[A];第十四屆全國水動力學(xué)研討會文集[C];2000年

3 賀小艷;馬漢東;;水下氣體射流數(shù)值研究[A];全國流體力學(xué)青年研討會論文集[C];2001年

相關(guān)碩士學(xué)位論文 前1條

1 許佳偉;不同深度下導(dǎo)彈水下點(diǎn)火燃?xì)馍淞髁鲌鰯?shù)值模擬[D];哈爾濱工業(yè)大學(xué);2009年

，

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