Phosphorescent tracer particles for Lagrangian flow measurement and particle tracking velocimetry

A new technique for manufacturing neutrally buoyant phosphorescent tracer particles for use in Lagrangian flow measurement and particle tracking velocimetry is presented. The particles can be manufactured with inexpensive equipment and materials, using three ingredients: paraffin wax, Keywax (a wax–...

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Bibliographic Details
Published in:Experiments in fluids Vol. 48; no. 5; pp. 927 - 931
Main Authors: Kemp, L., Jamieson, Elizabeth C., Gaskin, S. J.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer-Verlag 01.05.2010
Springer
Subjects:
Channels
Engineering
Engineering Fluid Dynamics
Engineering Thermodynamics
Exact sciences and technology
Excitation
Flow measurement
Fluid dynamics
Fluid- and Aerodynamics
Fundamental areas of phenomenology (including applications)
Heat and Mass Transfer
Instrumentation for fluid dynamics
Letter
Particle tracking
Physics
Pigments
Tracer particles
Velocimetry
Velocity measurement
ASW, Caribbean Sea, Greater Antilles, Puerto Rico, Phosphorescent
Flow Visualization
SrAl2O4
Particle Tracking Velocimetry
Particle Image Velocimetry
Stokes Number
Particle tracking velocimetry
Flow visualization
Phosphorescence
Spherical particle
Experimental study
Velocity measurement
Seeding
Tracers
ISSN:0723-4864, 1432-1114
Online Access:Get full text
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Description
Summary:A new technique for manufacturing neutrally buoyant phosphorescent tracer particles for use in Lagrangian flow measurement and particle tracking velocimetry is presented. The particles can be manufactured with inexpensive equipment and materials, using three ingredients: paraffin wax, Keywax (a wax–rubber polymer) and LumiNova ® phosphorescent pigment. Particles can be made with a range of diameters (150–4,000 μm) and, when seeded throughout the flow, can be excited at the peak excitation wavelength of the pigment using a focused source of ultraviolet light. Under a range of lighting conditions, it is possible to excite a single particle or a chosen region of the flow to record and analyze their Lagrangian flow path. To demonstrate this technique, sample images are provided for flow in a laboratory channel with a side embayment.
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ISSN:0723-4864
1432-1114
DOI:10.1007/s00348-009-0818-z