High-speed (20 kHz) digital in-line holography for transient particle tracking and sizing in multiphase flows
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Purdue Univ., West Lafayette, IN (United States)
High-speed (20 kHz) digital in-line holography (DIH) is applied for 3D quantification of the size and velocity of fragments formed from the impact of a single water drop onto a thin film of water and burning aluminum particles from the combustion of a solid rocket propellant. To address the depth-of-focus problem in DIH, a regression-based multiframe tracking algorithm is employed, and out-of-plane experimental displacement accuracy is shown to be improved by an order-of-magnitude. Comparison of the results with previous DIH measurements using low-speed recording shows improved positional accuracy with the added advantage of detailed resolution of transient dynamics from single experimental realizations. Furthermore, the method is shown to be particularly advantageous for quantification of particle mass flow rates. For the investigated particle fields, the mass flows rates, which have been automatically measured from single experimental realizations, are found to be within 8% of the expected values.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1258446
- Alternate ID(s):
- OSTI ID: 1245330
- Report Number(s):
- SAND--2016-1953J; 642134
- Journal Information:
- Applied Optics, Journal Name: Applied Optics Journal Issue: 11 Vol. 55; ISSN 0003-6935; ISSN APOPAI
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Improving the spatial dynamic range of digital inline particle holography
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journal | December 2018 |
Agglomerate Sizing in Aluminized Propellants Using Digital Inline Holography and Traditional Diagnostics
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journal | July 2018 |
Aerodynamic Breakup and Secondary Drop Formation for a Liquid Metal Column in a Shock-Induced Cross-Flow
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Ultra-high-speed Pulse-burst Phase Conjugate Digital In-line Holography for Imaging Through Shock-wave Distortions
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conference | January 2019 |
An Intelligent Vision Based Sensing Approach for Spraying Droplets Deposition Detection
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journal | February 2019 |
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