| 3D—PDA测量2相流场时散射粒子的选择 |
| Selection of Scattering Particles When Measuring Two-Phase Flow with 3D-PDA |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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. |
| 郭嘉 $2 |
| 华中理工大学!湖北省武汉市，430074 |
| 中文关键词: 流体速度测量 2相流场 速度测量 散射粒子 |
| 英文关键词:3D-PDA, Two-phase flow, Velocity measurement, Scattering particle selection, |
| 基金项目: |
| DOI： |
| 引用本文：郭嘉,$2.3D—PDA测量2相流场时散射粒子的选择[J].计测技术,1995,(1):10~11,28. |
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