A dense suspension of aluminum flakes in a fluid has many advantages as a flow-visualization method, and has been used to study circular Couette flow and Benard instability, among others. In the present contribution the scientific and pedagogical merits of the technique are examined further for three different cases: (a) Stability of Poiseuille flow; (b) Stability of the side-wall boundary layers created when a fluid-filLed, rotating container is suddenly brought to rest; (b) Stability of the boundary layer beneath a concentrated vortex.
The technique is also useful in other cases, especially when fundamentals of fluid flow are to be demonstrated in the classroom. Several of these further possibilities are briefly discussed.
Maxworthy, Tony, "A Simple Observational Technique for the Investigation of Boundary Layer Stability and Turbulence" (1969). Symposia on Turbulence in Liquids. 44.
Symposium on Turbulence Measurements in Liquids (1969: Sep., Rolla, MO)
Chemical and Biochemical Engineering
Article - Conference proceedings
Light Transmission Techniques
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