Towards time-resolved multi-property measurements by filtered Rayleigh scattering: diagnostic approach and verification
dc.contributor.author | Doll, Ulrich | |
dc.contributor.author | Kapulla, Ralf | |
dc.contributor.author | Dues, Michael | |
dc.contributor.author | Steinbock, Jonas | |
dc.contributor.author | Melnikov, Sergey | |
dc.contributor.author | Röhle, Ingo | |
dc.contributor.author | Migliorini, Matteo | |
dc.contributor.author | Zachos, Pavlos K. | |
dc.date.accessioned | 2024-01-17T16:10:20Z | |
dc.date.available | 2024-01-17T16:10:20Z | |
dc.date.issued | 2023-12-11 | |
dc.description.abstract | The use of multiple perspective views is a possible pathway towards the combined measurement of multiple time-resolved flow properties by filtered Rayleigh scattering (FRS). In this study, a six view observation concept is experimentally verified on a aspirated pipe flow. The concept was introduced in our previous work, and it has the ability to simultaneously measure high-accuracy time-averaged and time-resolved three-component velocity, pressure and temperature fields. To simulate time-resolution, multi-view FRS data at a single optimised excitation frequency are selected and processed for multiple flow properties. Time-averaged and quasi-time-resolved FRS results show very good agreement with differential pressure probe measurements and analytical temperature calculations and lie within ±2 m/s of complementary laser Doppler anemometry (LDA) velocity measurements for all operating points. The introduction of a multistage fitting procedure for the time-resolved analysis leads to a significant improvement of the precision by factors of 4 and 3 for temperature and axial velocity and 18 for pressure. Moreover, both processing methods show their capacity to resolve flow structures in a swirling flow configuration. It is demonstrated that the developed multi-view concept can be used to determine multiple flow variables from a singlefrequency measurement, opening the path towards time-resolved multi-parameter measurements by FRS. | en_UK |
dc.identifier.citation | Doll U, Kapulla R, Dues M, et al., (2024) Towards time-resolved multi-property measurements by filtered Rayleigh scattering: diagnostic approach and verification. Experiments in Fluids, Volume 65, January 2024, Article number 2 | en_UK |
dc.identifier.issn | 0723-4864 | |
dc.identifier.uri | https://doi.org/10.1007/s00348-023-03740-6 | |
dc.identifier.uri | https://dspace.lib.cranfield.ac.uk/handle/1826/20670 | |
dc.language.iso | en | en_UK |
dc.publisher | Springer | en_UK |
dc.rights | Attribution 4.0 International | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | * |
dc.title | Towards time-resolved multi-property measurements by filtered Rayleigh scattering: diagnostic approach and verification | en_UK |
dc.type | Article | en_UK |
dcterms.dateAccepted | 2023-11-07 |
Files
Original bundle
1 - 1 of 1
Loading...
- Name:
- Towards_time-resolved_multi-property_measurements-2023.pdf
- Size:
- 3.74 MB
- Format:
- Adobe Portable Document Format
- Description:
License bundle
1 - 1 of 1
No Thumbnail Available
- Name:
- license.txt
- Size:
- 1.63 KB
- Format:
- Item-specific license agreed upon to submission
- Description: