| 3D—PDA测量2相流场时散射粒子的选择 |
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| 引用本文： | 郭嘉,罗晔.3D—PDA测量2相流场时散射粒子的选择[J].航空计测技术,1995,15(1):10-11,28. |
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| 作者姓名： | 郭嘉 罗晔 |
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| 作者单位： | 华中理工大学!湖北省武汉市，430074 |
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| 摘 要： | 应用激光技术测量流体速度时，需要合适的散射粒子。本文研究了激光三维粒子动态分析仪（３Ｄ－ＰＤＡ）测量２相流场速度时，如何选择合适散射粒子的问题。研究结果表明，散射粒子的合理选择是保证测量精度的重要措施之一；测量湍流脉动较强流场时，应选用密度小、直径小、折射率大的粒子作散射粒子，并选择合适的粒子散播浓度。
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| 关 键 词： | 流体速度测量 2相流场 速度测量 散射粒子 |
Selection of Scattering Particles When Measuring Two-Phase Flow with 3D-PDA |
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| Guo Jia, Luo Ye.Selection of Scattering Particles When Measuring Two-Phase Flow with 3D-PDA[J].Aviation Metrology & Measurement Technology,1995,15(1):10-11,28. |
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| Authors: | Guo Jia Luo Ye |
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| Institution: | Guo Jia; Luo Ye |
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| Abstract: | The technigue of Laser Doppler velocity measurement in two phase fluid depends on sui-table particles. How to select the scattering particles in two-phase flow measurement with 3-Dimentional Particle Dynamic Analyzer (3D-PDA)is discussed in this paper. The results show that the property of scat-tering particles is a main factor affecting the velocity measurement, and those particles with smaller size,lower density and higher refractive index are highly suggested for the seeding in turbulent flow measure-ments. |
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| Keywords: | 3D-PDA Two-phase flow Velocity measurement Scattering particle selection |
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