Accession Number:

ADA422106

Title:

3D Particle Tracking Velocimetry on Transverse Injection in Supersonic Flow

Descriptive Note:

Final technical rept. 1 Apr 2001-31 Dec 2003

Corporate Author:

CALIFORNIA INST OF TECH PASADENA GRADUATE AERONAUTICAL LABS

Personal Author(s):

Report Date:

2003-12-30

Pagination or Media Count:

35.0

Abstract:

The supersonic Ludwieg Tube at the Graduate Aeronautical Laboratories of the California Institute of Technology was completed and taken into operation. A smaller Ludwieg Tube with the purpose of providing a transverse jet in the main flow was constructed and taken into operation, thus completing a compact, inexpensive supersonic flowinjection facility. The implementation of three-component, three-dimensional particle image velocimetry in supersonic air flows from the instrument existing for low speed water flows at the time of inception of the program required a much greater development effort than had been anticipated at the outset. Major redesign of the hardware and new software development as well as experimentation with particle generating systems produced an instrument that is now able to fulfill the tasks demanded of it for the project with good accuracy and spatial resolution. Velocities parallel to the camera face can be measured to an accuracy of 0.25 and the component normal to the camera face to 2.5.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE