| Summary: | Particle Image Velocimetry is one of several methods to visualize and
perform measurement on a fluid flow. PIV uses an optical laser measurement
technique works non-intrusively, which does not disturb the flow to be
investigated. In its application, PIV requires tracer particles added to the flow as a
medium for the measurement analysis of this method. Generally, for liquid flow,
used solid tracer particles suspended in the flow and mixed to obtain a
homogeneous flow. However, the problem is caused by solid waste tracer
particles which are not used anymore. In addition, the use of solid tracer particles
is expensive. The use of microbubble as a tracer particles instead of solid tracer
particles can reduce the cost and avoid enviromental waste due to the addition of
solid waste tracer particles, thus seen as a good alternative. The size of
microbubble that can be set in such a way confirms its reliability as an alternative
of tracer particles. Microbubble generation using microbubble generator orifice
and porous pipe type, where the experiment was conducted experimental
configuration of the number of microbubble generator and configuration of orifice
diameter. Microbubble injected into the test section after first accomodated in a
chamber which is placed at a certain height. Traceability of microbubble as a good
tracer can be seen by calculating the relaxation time and Stokes Number.
Microbubble distribution will be analyzed whether the distribution has been
spread evenly and produce a homogeneous flow or not.
Keyword: Microbubble, Tracer Particle, Particle Image Velocimetry, Stokes
Number, Relaxation Time, Microbubble Generator
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