ISSN:
1432-1114
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract A technique was developed to perform automated velocity measurements from a sequence of particle images. A very thin sheet of laser light allows determination of essentially two-dimensional velocity profiles in very small conduits. A four image sequence was captured by a microcomputer-based frame grabber. After thresholding to eliminate particles not perfectly centered in the sheet of light, the sequence of pseudo-colored images of a given particle is used to determine its velocity. By measuring several two-dimensional velocity profiles across a square channel, the complete three-dimensional velocity profile was assembled. The experimentally measured velocity profile agrees closely with the known theoretical velocity profile for flow in a square channel.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00215015
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