Shadow Doppler velocimetry with double fiber-array sensors

Matsuura, Kazuaki; Komaki, M.; Ueyama, Koji; Hironaga, K.

doi:10.1007/s00348-003-0601-5

Cited by 5 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Backlighting and image capture on a camera offer a viable means to estimate the size of a particle (shadowgraphy) (Bongiovanni et al 1997, Hofeldt & Hanson 1991; several simultaneous views can be used for size estimation of nonspherical particles, and the appropriate depth of field can limit the detection volume. Velocity can be measured either by particle tracking between pulsed illuminations or by combining the shadowgraphy with a laser Doppler system, known as shadow Doppler velocimetry (Hardalupas et al 1994, Jones et al 2002, Matsuura et al 2004, with both options commercially available. The latter solution has the advantage of being a pointwise measurement and presumably being applicable to higher particle concentrations, although systematic performance tests are not available (Morikita & Taylor 1998).…”

Section: Direct Imagingmentioning

confidence: 99%

Optical Particle Characterization in Flows

Tropea

2011

Annu. Rev. Fluid Mech.

164

View full text Add to dashboard Cite

Particle characterization in dispersed multiphase flows is important in quantifying transport processes both in fundamental and applied research: Examples include atomization and spray processes, cavitation and bubbly flows, and solid particle transport in gas and liquid carrier phases. Optical techniques of particle characterization are preferred owing to their nonintrusiveness, and they can yield information about size, velocity, composition, and to some extent the shape of individual particles. This review focuses on recent advances for measuring size, temperature, and the composition of particles, including several planar methods, various imaging techniques, laser-induced fluorescence, and the more recent use of femtosecond pulsed light sources. It emphasizes the main sources of uncertainty, the achievable accuracy, and the outlook for improvement of specific techniques and for specific applications. Some remarks are also directed toward the computational tools used to design and investigate the performance of optical particle diagnostic instruments.

show abstract