3D Particle Tracking Velocimetry on Transverse Injection in Supersonic Flow
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 flow/injection 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%.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 30, 2003
- Accession Number
- ADA422106
Entities
People
- C. Mouton
- H. G. Hornung
- N. Ponchaut
Organizations
- California Institute of Technology