Correction of Field-Measured Wind Speed Affected by Deterministic Interference Factors
The observations of meteorological wind speed may be biased due to the influence of various distractions. Therefore, the original measured data should be corrected in a targeted manner. Wind tunnel tests (WTT) and computational fluid dynamics (CFD) numerical simulation methods are used to study the...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-02-01
|
| Series: | Applied Sciences |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2076-3417/12/4/1868 |
| _version_ | 1827657399580753920 |
|---|---|
| author | Jing Duan Xingyu Chen Zhuangning Xie Lele Zhang |
| author_facet | Jing Duan Xingyu Chen Zhuangning Xie Lele Zhang |
| author_sort | Jing Duan |
| collection | DOAJ |
| description | The observations of meteorological wind speed may be biased due to the influence of various distractions. Therefore, the original measured data should be corrected in a targeted manner. Wind tunnel tests (WTT) and computational fluid dynamics (CFD) numerical simulation methods are used to study the local wind environment characteristics of observation sites in Noi Ling Ding Island (NLDI) and Ping An International Financial Center (PAFC) in the Shenzhen area. The interference effects of NLDI and the building components and instruments in the hollow-layer atop PAFC on their corresponding anemometer measurement results were analyzed, and a quantitative description was provided with the wind speed influence coefficient (<i>C<sub>V</sub></i><sub>I</sub>), which is the wind speed ratio in disturbed and undisturbed cases. Results show that the <i>C<sub>V</sub></i><sub>I</sub> of WTT at the NLDI site is slightly higher than that of CFD, and the wind speed in the wind-sensitive direction is accelerated by 12% due to the influence of NLDI. The large pillars at the corner of PAFC have a considerable occlusion effect on the wind speed under the wind direction of 45°. An acceleration effect with <i>C<sub>V</sub></i><sub>I</sub> of 1.163 is found in the dominant wind direction when instruments are absent atop the hollow-layer, whereas a sheltering effect is observed with the <i>C<sub>V</sub></i><sub>I</sub> of 0.593 when instruments are present. These results are used to correct the recorded wind speed at the NLDI and PAFC sites during Super Typhoon Manghut with No. 201822, and then converted into the 10 min mean wind pressure value at 10 m height under the standard landform. The reference wind pressure values obtained are 0.526 and 0.505 kPa. The analogous conversion values achieve the purpose of mutual verification, and the effectiveness and reliability of the methodologies are presented. |
| first_indexed | 2024-03-09T22:42:39Z |
| format | Article |
| id | doaj.art-812b584e856a4d26a52c75325d28b924 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T22:42:39Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-812b584e856a4d26a52c75325d28b9242023-11-23T18:35:26ZengMDPI AGApplied Sciences2076-34172022-02-01124186810.3390/app12041868Correction of Field-Measured Wind Speed Affected by Deterministic Interference FactorsJing Duan0Xingyu Chen1Zhuangning Xie2Lele Zhang3State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, ChinaState Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, ChinaState Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, ChinaState Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou 510641, ChinaThe observations of meteorological wind speed may be biased due to the influence of various distractions. Therefore, the original measured data should be corrected in a targeted manner. Wind tunnel tests (WTT) and computational fluid dynamics (CFD) numerical simulation methods are used to study the local wind environment characteristics of observation sites in Noi Ling Ding Island (NLDI) and Ping An International Financial Center (PAFC) in the Shenzhen area. The interference effects of NLDI and the building components and instruments in the hollow-layer atop PAFC on their corresponding anemometer measurement results were analyzed, and a quantitative description was provided with the wind speed influence coefficient (<i>C<sub>V</sub></i><sub>I</sub>), which is the wind speed ratio in disturbed and undisturbed cases. Results show that the <i>C<sub>V</sub></i><sub>I</sub> of WTT at the NLDI site is slightly higher than that of CFD, and the wind speed in the wind-sensitive direction is accelerated by 12% due to the influence of NLDI. The large pillars at the corner of PAFC have a considerable occlusion effect on the wind speed under the wind direction of 45°. An acceleration effect with <i>C<sub>V</sub></i><sub>I</sub> of 1.163 is found in the dominant wind direction when instruments are absent atop the hollow-layer, whereas a sheltering effect is observed with the <i>C<sub>V</sub></i><sub>I</sub> of 0.593 when instruments are present. These results are used to correct the recorded wind speed at the NLDI and PAFC sites during Super Typhoon Manghut with No. 201822, and then converted into the 10 min mean wind pressure value at 10 m height under the standard landform. The reference wind pressure values obtained are 0.526 and 0.505 kPa. The analogous conversion values achieve the purpose of mutual verification, and the effectiveness and reliability of the methodologies are presented.https://www.mdpi.com/2076-3417/12/4/1868field measurementdistractionwind speed correctionWTTnumerical simulation |
| spellingShingle | Jing Duan Xingyu Chen Zhuangning Xie Lele Zhang Correction of Field-Measured Wind Speed Affected by Deterministic Interference Factors Applied Sciences field measurement distraction wind speed correction WTT numerical simulation |
| title | Correction of Field-Measured Wind Speed Affected by Deterministic Interference Factors |
| title_full | Correction of Field-Measured Wind Speed Affected by Deterministic Interference Factors |
| title_fullStr | Correction of Field-Measured Wind Speed Affected by Deterministic Interference Factors |
| title_full_unstemmed | Correction of Field-Measured Wind Speed Affected by Deterministic Interference Factors |
| title_short | Correction of Field-Measured Wind Speed Affected by Deterministic Interference Factors |
| title_sort | correction of field measured wind speed affected by deterministic interference factors |
| topic | field measurement distraction wind speed correction WTT numerical simulation |
| url | https://www.mdpi.com/2076-3417/12/4/1868 |
| work_keys_str_mv | AT jingduan correctionoffieldmeasuredwindspeedaffectedbydeterministicinterferencefactors AT xingyuchen correctionoffieldmeasuredwindspeedaffectedbydeterministicinterferencefactors AT zhuangningxie correctionoffieldmeasuredwindspeedaffectedbydeterministicinterferencefactors AT lelezhang correctionoffieldmeasuredwindspeedaffectedbydeterministicinterferencefactors |