Investigation of Choking Phenomena of Supersonic Micro-nozzle Flow with Flashing Evaporation
闪蒸超音速微喷嘴流壅塞现象研究
基本信息
- 批准号:06452176
- 负责人:
- 金额:$ 5.31万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B)
- 财政年份:1994
- 资助国家:日本
- 起止时间:1994 至 1996
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
1. When intitially subcooled high temperature and high pressure liquid is accelerated through a converging-diverging nozzle and is expanded beyond its asturation condition, flash evaporation occurs in the converging section or at the throat of the nozzle. The choking of such a flow with flash evaporation is classified into three patterns.2. The choking condition depends on the initial pressure and the subcooling of the compressible liquid. A flow model for calculating the critical massflux through the nozzle is presented assuming an isentropic, homogeneous, equilibrium two-phase flow. The mass flowrate calculated by the present model agrees well with the experimental results.3. When the flow choked at the nozzle throat, a pressure wave is generated and propagated upstream so as to adjust the upstream flow conditions. The propagation velocity of a pressure wave through a compressible gas-liquid two phase flow depends on the void fraction and the relation between them is established.4. The characteristics of supersonic micro-nozzle depends not only on the Mach number but also the Reynolds number based on the flow condition at the nozzle exit. The range of overexpansion, correct-expansion, and underexpansion of a such a nozzle is clarified, and the data of the critical flow rate through the supersonic micro-nozzle was obtained.
1.当初始过冷的高温高压液体通过缩放喷管加速并膨胀到超过其饱和状态时,在喷管的收缩段或喉部会发生闪蒸。闪蒸对流动的阻塞可分为三种类型.阻塞条件取决于初始压力和可压缩液体的过冷度。在等熵、均匀、平衡两相流的假设下,建立了计算喷管临界流量的流动模型。用该模型计算的质量流量与实验结果吻合较好.当流动在喷嘴喉部被阻塞时,产生压力波并向上游传播,从而调节上游流动条件。压力波在可压缩气液两相流中的传播速度依赖于含气率,并建立了两者之间的关系.超声速微喷管的性能不仅取决于马赫数,还取决于雷诺数,这取决于喷管出口处的流动条件。研究了超声速微喷管的过膨胀、正膨胀和欠膨胀范围,得到了超声速微喷管的临界流量数据。
项目成果
期刊论文数量(16)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Kazuyasu Mastuo, et al.: "Critical Flow Rate of Flashing Subcooled Water through a Converging Nozzle" Engineering Sciences Reports, Kyushu University. 18-1. 11-18 (1996)
Kazuyasu Mastuo 等人:“通过收敛喷嘴的闪蒸过冷水的临界流量”工程科学报告,九州大学。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
片野田洋: "不足膨張軸対称超音速噴流の数値計算" 日本機械学会論文集. 61・589. 3236-3242 (1995)
Hiroshi Katanoda:“欠膨胀轴对称超音速射流的数值计算”日本机械工程师学会会刊 61・589 3236-3242(1995)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
宮里義昭: "超音速ノズルにおける過膨張流れの特性" 可視化情報. 15. 23-26 (1995)
Yoshiaki Miyazato:“超音速喷嘴中过度膨胀流的特性”可视化信息。15. 23-26 (1995)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Yoshiaki Miyazato, et al.: "Characteristics of Overexpanded Flow in a Supersonic Nozzle" Journal of Visualization Society of Japan. 15-2. 23-26 (1995)
Yoshiaki Miyazato 等人:“超音速喷嘴中过膨胀流动的特性”日本可视化学会杂志。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Hiroshi Katanoda, et al.: "Numerical Calculation of Underexpanded Axisymmetric Supersonic Jet" Transaction of Japan Society of Mechanical Engineers. 61-589. 3236-3242 (1995)
Hiroshi Katanoda 等人:“欠膨胀轴对称超音速射流的数值计算”日本机械工程师学会会刊。
- DOI:
- 发表时间:
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- 影响因子:0
- 作者:
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MATSUO Kazuyasu其他文献
MATSUO Kazuyasu的其他文献
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{{ truncateString('MATSUO Kazuyasu', 18)}}的其他基金
Study of Compound Choking Phenomena and Compound Shock Waves in Compressible Internal Flows
可压缩内流复合窒息现象与复合冲击波研究
- 批准号:
17360083 - 财政年份:2005
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study of Oscillation Characteristics of Shock Trains Formed in Supersonic Internal Flow and its Suppressing Method
超音速内流激波列振荡特性及抑制方法研究
- 批准号:
13450078 - 财政年份:2001
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study on Aerodynamic Noise induced by Shock Waves in Supersonic Flows and Development of a Method for Reducing the Noise
超音速流中冲击波气动噪声的研究及降噪方法的开发
- 批准号:
09450080 - 财政年份:1997
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of a New Method for Reducing Impulsive Aerodynamic Noise by means of Active Control Method
主动控制方法降低脉冲气动噪声新方法的开发
- 批准号:
07555380 - 财政年份:1995
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Development of New Gas Atomizer Supersonic Nozzle System for Super-micro-metal Powder Production
用于超微金属粉末生产的新型气体雾化器超声喷嘴系统的开发
- 批准号:
04555045 - 财政年份:1992
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
Post-Shock Expansion Phenomenon in Supersonic Internal Flow
超音速内流中的激波后膨胀现象
- 批准号:
02452119 - 财政年份:1990
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Development of a New Method for Alleviation of Impulsive Aerodynamic - Noise by Means of Water - Sheet
开发一种利用水板减轻脉冲气动噪声的新方法
- 批准号:
01850044 - 财政年份:1989
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research
A study on the suppression of oscillation of pseudo-shock waves by means of passive boundary layer control
无源边界层控制抑制赝激波振荡的研究
- 批准号:
62460094 - 财政年份:1987
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
Developemtn of a New Method for Control and %discharge o High Pressure Exhaust Gas by Means of Shock Wave Confinemnt
Developemtn%20of%20a%20New%20Method%20for%20Control%20and%20%discharge%20o%20High%20Pressure%20Exhaust%20Gas%20by%20Means%20of%20Shock%20Wave%20Confinemnt
- 批准号:
61850034 - 财政年份:1986
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research
A Study of Instability Phenomenon in a Supercritical Diffuser Flow
超临界扩压器流动不稳定现象的研究
- 批准号:
60550127 - 财政年份:1985
- 资助金额:
$ 5.31万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
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