High-resolution measurements of the spatial and temporal scalar structure of a turbulent plume
JP Crimaldi, JR Koseff - Experiments in Fluids, 2001 - Springer
Experiments in Fluids, 2001•Springer
Two techniques are described for measuring the scalar structure of turbulent flows. A planar
laser-induced fluorescence technique is used to make highly resolved measurements of
scalar spatial structure, and a single-point laser-induced fluorescence probe is used to make
highly resolved measurements of scalar temporal structure. The techniques are used to
measure the spatial and temporal structure of an odor plume released from a low-
momentum, bed-level source in a turbulent boundary layer. For the experimental setup used …
laser-induced fluorescence technique is used to make highly resolved measurements of
scalar spatial structure, and a single-point laser-induced fluorescence probe is used to make
highly resolved measurements of scalar temporal structure. The techniques are used to
measure the spatial and temporal structure of an odor plume released from a low-
momentum, bed-level source in a turbulent boundary layer. For the experimental setup used …
Abstract
Two techniques are described for measuring the scalar structure of turbulent flows. A planar laser-induced fluorescence technique is used to make highly resolved measurements of scalar spatial structure, and a single-point laser-induced fluorescence probe is used to make highly resolved measurements of scalar temporal structure. The techniques are used to measure the spatial and temporal structure of an odor plume released from a low-momentum, bed-level source in a turbulent boundary layer. For the experimental setup used in this study, a spatial resolution of 150 μm and a temporal resolution of 1,000 Hz are obtained. The results show a wide range of turbulent structures in rich detail; the nature of the structure varies significantly in different regions of the plume.
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