Engineering Research Equipment Grant: Phase Doppler Particle Analyzer

这项设备赠款提供了一台相位多普勒颗粒分析仪进行研究，这需要同时测量颗粒大小和速度的两个分量。该仪器基本上是一台双分量、双色激光多普勒测速仪，经过改进后可以进行颗粒尺寸测量。该设备提供了一种诊断性非侵入性工具，能够对颗粒尺寸分布和速度进行点测量。该设备将是许多热科学项目的一部分，包括研究旋转系统中的热量和质量传递、材料加工、非牛顿流动、燃料喷雾雾化和分散、喷雾点火和燃烧、流体悬浮液采样等。在这类问题中同时测量颗粒大小和速度的能力将增强对过程的理解和发展。

This equipment grant provides a Phase Doppler Particle Analyzer to conduct research which requires the simultaneous measurement of particle size and two components of velocity. The instrument is basically a two component, two color Laser Doppler Velocimeter which has been enhanced to perform particle size measurements. The device provides a diagnostic non-intrusive tool capable of making point measurements of particle size distribution and velocity. This equipment will be part of many thermal science projects including studies of heat and mass transfer in rotating systems, materials processing, non-Newtonian flows, fuel spray atomization and dispersion, spray ignition and combustion, sampling of fluid suspensions, and others. The ability to measure both particle size and velocity in such problems will enhance the understanding and development of the processes.