Simultaneous measurements of two phases using an optical probe
© Tsinghua University Press 2019. For a detailed characterisation of multiphase flows, a local measurement technique that is capable of quantifying both continuous and dispersed phases has to be employed. In the present study, a new optical probe was tested for its ability to provide simultaneous lo...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/76278 |
| _version_ | 1848763661401718784 |
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| author | Prakash, Baranivignesh Parmar, Harisinh Shah, Milin Pareek, Vishnu Anthony, L. Utikar, Ranjeet |
| author_facet | Prakash, Baranivignesh Parmar, Harisinh Shah, Milin Pareek, Vishnu Anthony, L. Utikar, Ranjeet |
| author_sort | Prakash, Baranivignesh |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © Tsinghua University Press 2019. For a detailed characterisation of multiphase flows, a local measurement technique that is capable of quantifying both continuous and dispersed phases has to be employed. In the present study, a new optical probe was tested for its ability to provide simultaneous local measurements of gas and liquid/solid in a three-phase system. The new probe can measure the intensity of light reflection due to the presence of gas or liquid medium surrounding the probe tip in conjunction with the Doppler frequency caused by the approach of a solid particle. The experiments were carried out in a pseudo-2D rectangular column by passing gas bubbles through a stationary liquid with suspended seeding particles. In these experiments, measurements were carried out by using three techniques namely optical probe, particle image velocimetry (PIV), and high-speed imaging (HSI). PIV measurements were used to validate seeding particle velocity obtained using the optical probe, whereas HSI technique was used to validate bubble chord length data from optical probe. The difference between the particle velocity from the probe and PIV was in a range of 13%–20%, w hile the difference between chord length measured by the probe and HSI was within ±8%. |
| first_indexed | 2025-11-14T11:07:00Z |
| format | Journal Article |
| id | curtin-20.500.11937-76278 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T11:07:00Z |
| publishDate | 2019 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-762782019-09-17T03:21:41Z Simultaneous measurements of two phases using an optical probe Prakash, Baranivignesh Parmar, Harisinh Shah, Milin Pareek, Vishnu Anthony, L. Utikar, Ranjeet © Tsinghua University Press 2019. For a detailed characterisation of multiphase flows, a local measurement technique that is capable of quantifying both continuous and dispersed phases has to be employed. In the present study, a new optical probe was tested for its ability to provide simultaneous local measurements of gas and liquid/solid in a three-phase system. The new probe can measure the intensity of light reflection due to the presence of gas or liquid medium surrounding the probe tip in conjunction with the Doppler frequency caused by the approach of a solid particle. The experiments were carried out in a pseudo-2D rectangular column by passing gas bubbles through a stationary liquid with suspended seeding particles. In these experiments, measurements were carried out by using three techniques namely optical probe, particle image velocimetry (PIV), and high-speed imaging (HSI). PIV measurements were used to validate seeding particle velocity obtained using the optical probe, whereas HSI technique was used to validate bubble chord length data from optical probe. The difference between the particle velocity from the probe and PIV was in a range of 13%–20%, w hile the difference between chord length measured by the probe and HSI was within ±8%. 2019 Journal Article http://hdl.handle.net/20.500.11937/76278 10.1007/s42757-019-0025-y restricted |
| spellingShingle | Prakash, Baranivignesh Parmar, Harisinh Shah, Milin Pareek, Vishnu Anthony, L. Utikar, Ranjeet Simultaneous measurements of two phases using an optical probe |
| title | Simultaneous measurements of two phases using an optical probe |
| title_full | Simultaneous measurements of two phases using an optical probe |
| title_fullStr | Simultaneous measurements of two phases using an optical probe |
| title_full_unstemmed | Simultaneous measurements of two phases using an optical probe |
| title_short | Simultaneous measurements of two phases using an optical probe |
| title_sort | simultaneous measurements of two phases using an optical probe |
| url | http://hdl.handle.net/20.500.11937/76278 |