Development and Application of Advanced Optical Diagnostics for the Study of High Speed Flows in Micro Systems

摘要

The primary goal of this research program is the development and application of laser based flow diagnostics for the study of supersonic micro- nozzles, such as those, which might be employed for flow control and/or small satellite orbit maintenance. In this report we document the significant progress that has been made in FY-02 in the development of Molecular Tagging Velocimetry (MTV), including assessment of experimental accuracy at low ((caret)0.10 - 3 torr) static pressure and detailed comparisons between experimental flow field data and computational predictions using the Direct Simulation Monte Carlo (DSMC) method. Progress in the development of micro Planar Doppler Velocimetry (micro PDV) is also described.