Applications of image processing to two-phase flow measurements
Abstract
The flow characteristics of liquids such as fuel in a combustion chamber can be visualized to study techniques of performance optimization. Several image-processing techniques are described which are based on image processing (both on- and off-line) of the liquid film behavior in a transparent isothermal model of a chamber. Spray characteristics are measured locally and globally by recording magnified images of a spray illuminated by a laser beam. High-speed cine or video cameras or moire topography can be used to visualize such parameters as spray edges, drop formation and diameter, and the radial distribution of drops. The image-processing techniques are effective for studying two-phase dispersed flows and can be used to study two impacting microjets such as those in a rocket engine.
- Publication:
-
Flow Visualization V; Proceedings of the 5th International Symposium
- Pub Date:
- 1990
- Bibcode:
- 1990flvi.proc..311H
- Keywords:
-
- Combustion Chambers;
- Flow Measurement;
- High Speed Cameras;
- Image Processing;
- Laser Doppler Velocimeters;
- Two Phase Flow;
- Fuel Injection;
- Reacting Flow;
- Three Dimensional Flow;
- Instrumentation and Photography