A portable laser light-scattering probe for turbulent diffusion studies
- 1 February 1974
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 45 (2), 210-215
- https://doi.org/10.1063/1.1686590
Abstract
A new instrument has been devised, based on light scattering principles, to measure real‐time concentration variation in a turbulent flow. Used for turbulent diffusionmeasurements in a wind tunnel boundary layer, it can also be utilized for other turbulentmixing studies as well. The instantaneous concentration was detected by means of a 5 mW He–Ne gas laser as a light source, dioctyl phthalate aerosols as tracer particles, fiber optics as the scattered light transmitter, and a photomultiplier as a scattered light sensor. The instrument was designed to be moved to any location in a wind tunnel to measure steady or unsteady diffusion processes.Keywords
This publication has 2 references indexed in Scilit:
- On the light-scatter technique for the study of turbulence and mixingJournal of Fluid Mechanics, 1967
- Smoke-scattered light measurement of turbulent concentration fluctuationsChemical Engineering Science, 1961