Acquisition of Three-Component Laser-Doppler Velocimeter

摘要-9906746B。主要研究人员提出了获取三分量激光多普勒测速仪的建议。该系统将用于测量分离的、受浮力影响的对流流动中的三个速度分量。该系统将与现有的液晶温度测量系统结合使用，以同时测量加热恒流表面的流场和表面换热系数，作为后向台阶三维几何形状中分离和重新连接流区流动和换热的协调实验和数值研究的一部分。重点将放在确定传热和浮力对平均速度分量和波动速度分量的影响上。将测定雷诺剪应力、法向应力和换热系数。三分量LDV将是密苏里州大学四个校区系统中唯一的一个，并将提供给其他参与流体力学研究的教职员工。

ABSTRACTCTS-9906746B. ARMALYThe principal investigator proposes the acquisition of three component laser Doppler velocimeter. The system will be used to measure the three velocity components in separated, buoyancy affected, convective flows. The system will be used in conjunction with an existing liquid crystal thermography system for temperature measurements to simultaneously measure the flow field and the surface heat transfer coefficients from a heated constant flux surface as part of a coordinated experimental and numerical study of the flow and heat transfer in the separated and reattached flow regions in the three ddimensional geometry of a backward facing step. The focus will be on determining the effect of the heat transfer and the buoyancy on the mean and fluctuating velocity components. Reynolds shear stresses, normal stresses, and heat transfer coefficients will be determined.The three component LDV will be the ony one in the four campus University of Missouri system and the State of Missouri and will be available to other faculty involved in fluid mechanics research.