Optimization of Temperature Measurement Method for High-Pressure Gas Flow Standard Facility Based on Sonic Nozzle Array
To improve the accuracy of the wind tunnel test, relying on the high-pressure gas source of the China Aerodynamic Research and Development Center, a secondary flow standard facility based on a sonic nozzle array was developed, with a pressure range of (1~6) MPa and a flow range of (0.12~5.55) kg/s....
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-11-01
|
| Series: | Aerospace |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2226-4310/11/12/986 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850040541126852608 |
|---|---|
| author | Zhihao Zhang Jiaxi Zhao Tingting Liu Rongping Zhang |
| author_facet | Zhihao Zhang Jiaxi Zhao Tingting Liu Rongping Zhang |
| author_sort | Zhihao Zhang |
| collection | DOAJ |
| description | To improve the accuracy of the wind tunnel test, relying on the high-pressure gas source of the China Aerodynamic Research and Development Center, a secondary flow standard facility based on a sonic nozzle array was developed, with a pressure range of (1~6) MPa and a flow range of (0.12~5.55) kg/s. Currently, most facilities use the average temperature measured by the temperature array to represent the upstream temperature of the sonic nozzle array. However, the small flow calibration test results showed that the maximum temperature difference upstream of the standard sonic nozzle array was 1.97 K, and the temperature field upstream of the sonic nozzle array showed non-uniformity, so the above method cannot accurately obtain the upstream temperature. To solve this problem, each nozzle used in the standard sonic nozzle array was accurately measured by temperature sensors. The uncertainty of the facility and the discharge coefficient of the calibrated nozzle between the two methods were compared. The results showed that compared with the discharge coefficient obtained using the temperature sensor array of 0.9902, the accurate measurement of 0.9904 was closer to the National Institute of Metrology, China (NIM) traceable result of 0.9907, and the relative uncertainty of the facility was reduced from 0.124% (<i>k</i> = 2) to 0.120% (<i>k</i> = 2). |
| format | Article |
| id | doaj-art-05904f79a7aa466cb77d7dcf89a89fa7 |
| institution | DOAJ |
| issn | 2226-4310 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Aerospace |
| spelling | doaj-art-05904f79a7aa466cb77d7dcf89a89fa72025-08-20T02:56:03ZengMDPI AGAerospace2226-43102024-11-01111298610.3390/aerospace11120986Optimization of Temperature Measurement Method for High-Pressure Gas Flow Standard Facility Based on Sonic Nozzle ArrayZhihao Zhang0Jiaxi Zhao1Tingting Liu2Rongping Zhang3School of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaState Key Laboratory of Aerodynamic, Aerodynamic Noise Control Research Center, Mianyang 621000, ChinaSchool of Information Engineering, Southwest University of Science and Technology, Mianyang 621010, ChinaState Key Laboratory of Aerodynamic, Aerodynamic Noise Control Research Center, Mianyang 621000, ChinaTo improve the accuracy of the wind tunnel test, relying on the high-pressure gas source of the China Aerodynamic Research and Development Center, a secondary flow standard facility based on a sonic nozzle array was developed, with a pressure range of (1~6) MPa and a flow range of (0.12~5.55) kg/s. Currently, most facilities use the average temperature measured by the temperature array to represent the upstream temperature of the sonic nozzle array. However, the small flow calibration test results showed that the maximum temperature difference upstream of the standard sonic nozzle array was 1.97 K, and the temperature field upstream of the sonic nozzle array showed non-uniformity, so the above method cannot accurately obtain the upstream temperature. To solve this problem, each nozzle used in the standard sonic nozzle array was accurately measured by temperature sensors. The uncertainty of the facility and the discharge coefficient of the calibrated nozzle between the two methods were compared. The results showed that compared with the discharge coefficient obtained using the temperature sensor array of 0.9902, the accurate measurement of 0.9904 was closer to the National Institute of Metrology, China (NIM) traceable result of 0.9907, and the relative uncertainty of the facility was reduced from 0.124% (<i>k</i> = 2) to 0.120% (<i>k</i> = 2).https://www.mdpi.com/2226-4310/11/12/986gas flow standard facilitysonic nozzletemperature measurementdischarge coefficientuncertainty |
| spellingShingle | Zhihao Zhang Jiaxi Zhao Tingting Liu Rongping Zhang Optimization of Temperature Measurement Method for High-Pressure Gas Flow Standard Facility Based on Sonic Nozzle Array Aerospace gas flow standard facility sonic nozzle temperature measurement discharge coefficient uncertainty |
| title | Optimization of Temperature Measurement Method for High-Pressure Gas Flow Standard Facility Based on Sonic Nozzle Array |
| title_full | Optimization of Temperature Measurement Method for High-Pressure Gas Flow Standard Facility Based on Sonic Nozzle Array |
| title_fullStr | Optimization of Temperature Measurement Method for High-Pressure Gas Flow Standard Facility Based on Sonic Nozzle Array |
| title_full_unstemmed | Optimization of Temperature Measurement Method for High-Pressure Gas Flow Standard Facility Based on Sonic Nozzle Array |
| title_short | Optimization of Temperature Measurement Method for High-Pressure Gas Flow Standard Facility Based on Sonic Nozzle Array |
| title_sort | optimization of temperature measurement method for high pressure gas flow standard facility based on sonic nozzle array |
| topic | gas flow standard facility sonic nozzle temperature measurement discharge coefficient uncertainty |
| url | https://www.mdpi.com/2226-4310/11/12/986 |
| work_keys_str_mv | AT zhihaozhang optimizationoftemperaturemeasurementmethodforhighpressuregasflowstandardfacilitybasedonsonicnozzlearray AT jiaxizhao optimizationoftemperaturemeasurementmethodforhighpressuregasflowstandardfacilitybasedonsonicnozzlearray AT tingtingliu optimizationoftemperaturemeasurementmethodforhighpressuregasflowstandardfacilitybasedonsonicnozzlearray AT rongpingzhang optimizationoftemperaturemeasurementmethodforhighpressuregasflowstandardfacilitybasedonsonicnozzlearray |