| 对气液二相流音速的进一步研究 |
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| 引用本文： | 王永青,邓新建,余承业. 对气液二相流音速的进一步研究[J]. 航空学报, 1997, 18(1): 67-70 |
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| 作者姓名： | 王永青 邓新建 余承业 |
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| 作者单位： | 南京航空航天大学机电设备总厂, 南京, 210016 |
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| 基金项目： | 航空高等院校博士点科研基金 |
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| 摘 要： | 测量小药量电雷管爆炸压力波的传播速度，再修正到音速。结果表明:气液二相流音速比单相液体或空气介质低得多，流动机构对音速变化有显著影响。对低气泡率泡状流，音速与均匀流模型导出的结论相一致。随气泡率增加，流动机构改变时，音速值变化很大。
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| 关 键 词： | 音速 气液二相流 气泡率 流动机构 电导探针 |
| 收稿时间： | 1996-02-26 |
| 修稿时间： | 1996-07-15 |
A FURTHER INVESTIGATION ON THE SOUND SPEED IN GAS LIQUID TWO PHASE FLOW |
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| Wang Yongqing,Deng Xinjian,Yu Chengye. A FURTHER INVESTIGATION ON THE SOUND SPEED IN GAS LIQUID TWO PHASE FLOW[J]. Acta Aeronautica et Astronautica Sinica, 1997, 18(1): 67-70 |
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| Authors: | Wang Yongqing Deng Xinjian Yu Chengye |
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| Affiliation: | Machinery and Electron Equipment General Factory, NUAA, Nanjing, 210016 |
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| Abstract: | Pressure wave is generated by exploding small detonator. The sound speed is obtained by amending propagation velocity of pressure wave that has been measured. The result indicates that the sound speed of gas liquid two phase flow is much lower than single phase liquid or air medium. Flow pattern has remarkable effect on change of sound speed. The acoustic speed can be predicted by the homogeneous model at a low void fraction (bubble flow regime). With the rise of void fraction and change of flow regime, acoustic speed rapidly varies. |
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| Keywords: | sound speed gas liquid two phase flow void fraction flow regime electrical probe |
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