Abstract
This paper discusses the experimental setup of a 3D LIF imagingfacility. The advected scalar concentration field of a LIF dye is digitizedquasi-instantaneously. The x- and y-resolution are determined by thecamera optic, the z-resolution by the scan process. In the absence ofscan noise, spatial resolution can be designed to be equal in all threedirections. The thus obtained 3D field can be used as input signal for anoptical flow measurement technique. The scope of the imaging is mainlyconstrained by the local Reynolds number of the flow and the state ofcurrent high-speed digital cameras and laser scanners. The reciprocalrelationship of the important parameters is discussed along with someimplementational examples for the turbulent free jet.
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