Flow field measurement by tracer photography
Abstract
Methods of inserting and photographing tracers in an air stream are described. Successive positions of micrometer-sized oil drops are determined in centimeter-sized fields of a low power microscope by triple flash illumination at known intervals of 10 to 500 microseconds. Tracer positions read from the picture are entered into a computer and velocities calculated throughout the field. Some examples of computer displays of velocity fields are presented.
- Publication:
-
Experiments in Fluids
- Pub Date:
- December 1983
- DOI:
- 10.1007/BF00266465
- Bibcode:
- 1983ExFl....1..179E
- Keywords:
-
- Flow Distribution;
- Flow Measurement;
- Laminar Flow;
- Photomicrography;
- Pipe Flow;
- Trace Elements;
- Computer Graphics;
- Data Acquisition;
- Data Processing;
- Display Devices;
- Drops (Liquids);
- Flow Velocity;
- Mineral Oils;
- Fluid Mechanics and Heat Transfer;
- Flow Field;
- Velocity Field;
- Field Measurement;
- Photography;
- Computer Display