Optical characterization of bubbly flows with a near-critical-angle scattering technique

Onofri, Fabrice; Krzysiek, Mariusz; Mroczka, Janusz; Ren, Kun; Radev, Stefan; Bonnet, J.P.

doi:10.1007/s00348-009-0649-y

Cited by 40 publications

(15 citation statements)

References 22 publications

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“…For example, Castanet et al (2013) implememted high-speed imaging to measure the droplet size and velocity simultaneously; Onofri et al (2009) developed critical angle refractometry and sizing technique to instantaneously characterize the local size distribution a cloud of bubbles.…”

Section: Introductionmentioning

confidence: 99%

High-speed shadow imaging in internal flow pattern and macroscopic characteristics of a R134a flash-boiling spray discharged through a vertical twin-orifice atomizer

Fang

Zhang

et al. 2015

International Journal of Multiphase Flow

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Section: Introductionmentioning

confidence: 99%

High-speed shadow imaging in internal flow pattern and macroscopic characteristics of a R134a flash-boiling spray discharged through a vertical twin-orifice atomizer

Fang

Zhang

et al. 2015

International Journal of Multiphase Flow

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“…Similar inverse problems arise in many nondestructive diagnostic techniques e.g. bubble cloud size distribution retrieval [26], spatial distribution of intensities [27,28], properties of composite material [29]. Their common characteristics are their complex natures and their diculties in mathematical analysis particularly when formulating explicit relationships between measured quantities and desired quantities [30,31].…”

Section: Fig 4 Exemplary Temperature Distributions (Top)mentioning

confidence: 90%

Non-Luminous Flame Temperature Determination Method Based on CO₂Radiation Intensity

Cięszczyk

2014

Acta Phys. Pol. A

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A new method for estimating the temperature of non-luminous ames is presented. The spectral radiation intensity emitted from uniform or temperature-axisymmetric CO2 gas is simulated. A new inversion scheme that utilizes intensity ratios instead of directly spectral intensities is applied. This technique eliminates the errors caused by inaccuracies in the absolute radiation intensity that result from both calibration and on-site measurement. For example, this situation can occur when a spectrometer acquires radiance within only a part of its eld of view. Neural networks are used as inverse models. The proposed inversion approach shows good results with simulated data. The analysis of example measured emission spectra from practical ames is also demonstrated.

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“…They manifest themselves in form of extremely narrow light pulses of the scattering intensity at resonance and do not usually appear in experiments with complex multi-phase systems (sprays, bubble clouds, etc.) [36][37][38][39][40][41]. Figure 4 shows a sketch of ray trajectories prepared for a capillary with the ID/OD = 0.1, supplemented with the rays of light that cause surface waves.…”

Section: Scattering Of Light By a Capillary For Ri Determinationmentioning

confidence: 99%

Capillary-scale interferometry at high angles of scattering for refractive index measurements of small volumes

Świrniak

2016

SPIE Proceedings

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This paper focuses on the problem of elastic scattering of a collimated beam of light on an unmodified glass capillary to perform a non-destructive small volume refractive index characterization. An interaction between the beam of light and the capillary causes that a series of dark and bright fringes is formed in the far field observed at high angles of scattering. By analyzing the spatial profile of the scattered light, the absolute value of the refractive index of a small volume may be measured unambiguously.

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Optical characterization of bubbly flows with a near-critical-angle scattering technique

Cited by 40 publications

References 22 publications

High-speed shadow imaging in internal flow pattern and macroscopic characteristics of a R134a flash-boiling spray discharged through a vertical twin-orifice atomizer

High-speed shadow imaging in internal flow pattern and macroscopic characteristics of a R134a flash-boiling spray discharged through a vertical twin-orifice atomizer

Non-Luminous Flame Temperature Determination Method Based on CO₂Radiation Intensity

Capillary-scale interferometry at high angles of scattering for refractive index measurements of small volumes

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Optical characterization of bubbly flows with a near-critical-angle scattering technique

Cited by 40 publications

References 22 publications

High-speed shadow imaging in internal flow pattern and macroscopic characteristics of a R134a flash-boiling spray discharged through a vertical twin-orifice atomizer

High-speed shadow imaging in internal flow pattern and macroscopic characteristics of a R134a flash-boiling spray discharged through a vertical twin-orifice atomizer

Non-Luminous Flame Temperature Determination Method Based on CO2Radiation Intensity

Capillary-scale interferometry at high angles of scattering for refractive index measurements of small volumes

Contact Info

Product

Resources

About

Non-Luminous Flame Temperature Determination Method Based on CO₂Radiation Intensity