Measurement of velocity fields in fluid dynamics experiments
Abstract
A microcomputer-video system was used to measure both spatial and temporal variations of two dimensional fluid flow velocity fields. The system utilizes two methods: the first method is the traditional one in which tracers are introduced into the fluid and their position compared at two closely spaced times; and the second method involves scattering coherent light in the fluid and obtaining motion by analyzing the multiple exposed speckle pattern recorded on photographic film.
- Publication:
-
In Alabama Univ. Res. Rept.: The 1980 NASA/ASEE Summer Fac. Fellowship Program 6 p (SEE N81-11977 02-99
- Pub Date:
- October 1980
- Bibcode:
- 1980asee.nasaR....F
- Keywords:
-
- Flow Distribution;
- Fluid Dynamics;
- Velocity Distribution;
- Convective Heat Transfer;
- Correlation;
- Flow Velocity;
- Fluid Flow;
- Image Enhancement;
- Speckle Patterns;
- Fluid Mechanics and Heat Transfer