Abstract
A bench-top model of a chemical plume in a turbulent flow, a Virtual Plume, was built to simulate the behavior of a turbulent chemical plume. It is based on an eight-channel FIA/SIA system and an array of eight amperometric sensors. A plug of sample solution was delivered to the sensors after passing through delay and dispersion elements. Adjusting these two elements enabled us to simulate the time-concentration profile at any arbitrary point in the plume. It has been shown that an eight-channel system can simulate an arbitrary sensor array positioned in a turbulent plume. Preliminary correlation of the shape of the peaks obtained in the VP with those recorded using planar laser-induced fluorescence in a turbulent flow shows the value of this approach.
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