Wind tunnel experimental calibration of hemispherical 7-hole probe pressure–velocity parametric equation
Abstract The multi-hole probe can measure the velocity and three-dimensional direction of the flow field at the same time, so it is often used to measure the three-dimensional flow field. Compared with other flow field measuring instruments, the multi-hole probe has stronger environmental adaptabili...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2022-07-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-16929-2 |
| _version_ | 1818492090135347200 |
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| author | Tao Yao Shu-dao Zhou Song Ye Yang-chun Zhang |
| author_facet | Tao Yao Shu-dao Zhou Song Ye Yang-chun Zhang |
| author_sort | Tao Yao |
| collection | DOAJ |
| description | Abstract The multi-hole probe can measure the velocity and three-dimensional direction of the flow field at the same time, so it is often used to measure the three-dimensional flow field. Compared with other flow field measuring instruments, the multi-hole probe has stronger environmental adaptability and stability, and can better measure the three-dimensional flow field of the middle atmosphere. Therefore, a hemispherical 7-hole probe was designed, a pressure–velocity parameterized equation was established based on the theory of flow around a sphere, and a new calibration method was developed based on this. The calibration is carried out in a subsonic low speed wind tunnel, multiple combinations of flow parameters (inflow velocity and flow angles) are adjusted during the calibration. The results are compared with the numerical simulation results, both are quite close, with a speed measurement deviation of less than 5% and an angle measurement deviation of less than 1°. Our results establish the practicality of the hemispherical 7-hole probe and the simplified calibration procedure, both of which improve calibration efficiency and lower probe calibration costs. |
| first_indexed | 2024-12-10T17:38:51Z |
| format | Article |
| id | doaj.art-dc525ac4791d46cd9d0c8843699b437f |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-10T17:38:51Z |
| publishDate | 2022-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-dc525ac4791d46cd9d0c8843699b437f2022-12-22T01:39:26ZengNature PortfolioScientific Reports2045-23222022-07-0112111210.1038/s41598-022-16929-2Wind tunnel experimental calibration of hemispherical 7-hole probe pressure–velocity parametric equationTao Yao0Shu-dao Zhou1Song Ye2Yang-chun Zhang3College of Meteorology and Oceanography, National University of Defense TechnologyCollege of Meteorology and Oceanography, National University of Defense TechnologyCollege of Meteorology and Oceanography, National University of Defense TechnologyCollege of Meteorology and Oceanography, National University of Defense TechnologyAbstract The multi-hole probe can measure the velocity and three-dimensional direction of the flow field at the same time, so it is often used to measure the three-dimensional flow field. Compared with other flow field measuring instruments, the multi-hole probe has stronger environmental adaptability and stability, and can better measure the three-dimensional flow field of the middle atmosphere. Therefore, a hemispherical 7-hole probe was designed, a pressure–velocity parameterized equation was established based on the theory of flow around a sphere, and a new calibration method was developed based on this. The calibration is carried out in a subsonic low speed wind tunnel, multiple combinations of flow parameters (inflow velocity and flow angles) are adjusted during the calibration. The results are compared with the numerical simulation results, both are quite close, with a speed measurement deviation of less than 5% and an angle measurement deviation of less than 1°. Our results establish the practicality of the hemispherical 7-hole probe and the simplified calibration procedure, both of which improve calibration efficiency and lower probe calibration costs.https://doi.org/10.1038/s41598-022-16929-2 |
| spellingShingle | Tao Yao Shu-dao Zhou Song Ye Yang-chun Zhang Wind tunnel experimental calibration of hemispherical 7-hole probe pressure–velocity parametric equation Scientific Reports |
| title | Wind tunnel experimental calibration of hemispherical 7-hole probe pressure–velocity parametric equation |
| title_full | Wind tunnel experimental calibration of hemispherical 7-hole probe pressure–velocity parametric equation |
| title_fullStr | Wind tunnel experimental calibration of hemispherical 7-hole probe pressure–velocity parametric equation |
| title_full_unstemmed | Wind tunnel experimental calibration of hemispherical 7-hole probe pressure–velocity parametric equation |
| title_short | Wind tunnel experimental calibration of hemispherical 7-hole probe pressure–velocity parametric equation |
| title_sort | wind tunnel experimental calibration of hemispherical 7 hole probe pressure velocity parametric equation |
| url | https://doi.org/10.1038/s41598-022-16929-2 |
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