Application of laser velocimetry to an unsteady transonic flow
Abstract
Measurements of mean velocity, turbulent kinetic energy, and turbulent shear stress have been obtained in an unsteady but periodic flow. Polystyrene spheres, 0.35-0.55 microns in diameter, were injected into the tunnel settling chamber to seed the flow for a laser velocimeter. Synchronized counters together with an encoding interface and digital-to-analog converters were used to record the data on an analog tape recorder. Profiles of velocity and turbulence quantities are presented for several times during the periodic flow.
- Publication:
-
AUTOTESTCON 1979
- Pub Date:
- 1979
- Bibcode:
- 1979ieee.conf..284S
- Keywords:
-
- Flow Velocity;
- Laser Doppler Velocimeters;
- Transonic Flow;
- Turbulent Flow;
- Unsteady Flow;
- Velocity Measurement;
- Data Acquisition;
- Digital To Analog Converters;
- Flow Measurement;
- Kinetic Energy;
- Polystyrene;
- Shear Stress;
- Instrumentation and Photography