De-Focusing Digital Particle Image Velocimetry System

Abstract : The work under a Grant from DURIP is to build and test a velocimetry system in support of an AFOSR Grant for making three-dimensional, three-component velocity field measurements in supersonic transverse jet injection in the Caltech Ludwieg Tube. All of the components of the system have been purchased, and those that needed to be manufactured in the machine shop have been designed and built. Improvements in hardware, recognized during the design and construction, both from practical points of view and from the point of view of comparison of data with computation, have led to changes in design. These were implemented, but require extensive new software that is being generated prior to the calibration of the system.