Characteristics of the Near-Ground Typhoon Morakot
Two WJ-3 anemometers placed at the same height on the top of an architectural engineering building in Wenzhou University are used to determine the wind speed of Typhoon Morakot during its landing in real time. This study aims to explore Typhoon Morakot’s wind field characteristics, including mean wi...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9968586 |
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| _version_ | 1832560702016978944 |
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| author | Yanru Wang Yongguang Li Bin Fu Xu Wang Chuanxiong Zhang Guangyu Fan |
| author_facet | Yanru Wang Yongguang Li Bin Fu Xu Wang Chuanxiong Zhang Guangyu Fan |
| author_sort | Yanru Wang |
| collection | DOAJ |
| description | Two WJ-3 anemometers placed at the same height on the top of an architectural engineering building in Wenzhou University are used to determine the wind speed of Typhoon Morakot during its landing in real time. This study aims to explore Typhoon Morakot’s wind field characteristics, including mean wind speed, probability density distribution of fluctuating wind speed, power spectral density, correlation analysis, and coherence, on the basis of data measured by the two anemometers. Results show that the probability density distribution of the fluctuating wind speed of the typhoon follows the Gaussian distribution, and the measured cross-power spectrum of fluctuating wind speed is in good agreement with the modified Karman spectrum. The autocorrelation decreases with the increase in time interval (τ). The longitudinal autocorrelation coefficient decays rapidly with the increase in τ, and the lateral autocorrelation coefficient decays at an unchanged rate. The exponential attenuation coefficients of the longitudinal and transverse fluctuating wind speeds increase with the increase in the mean wind speed, and their mean values are 10.86 and 15.33, respectively. The change trends of the coherence coefficients of the two wind speed components with the mean wind speed are the same. The measured coherence coefficients of the two wind speed components are in good agreement with the exponential function. |
| format | Article |
| id | doaj-art-de3acccf8dbe4e448422ce2abc1a57cb |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-de3acccf8dbe4e448422ce2abc1a57cb2025-02-03T01:27:01ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/99685869968586Characteristics of the Near-Ground Typhoon MorakotYanru Wang0Yongguang Li1Bin Fu2Xu Wang3Chuanxiong Zhang4Guangyu Fan5School of Civil Engineering, Taizhou University, Taizhou 318000, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaSchool of Civil Engineering, Taizhou University, Taizhou 318000, ChinaState Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, ChinaSchool of Civil Engineering, Wenzhou University, Wenzhou 150080, ChinaSchool of Civil Engineering, Taizhou University, Taizhou 318000, ChinaTwo WJ-3 anemometers placed at the same height on the top of an architectural engineering building in Wenzhou University are used to determine the wind speed of Typhoon Morakot during its landing in real time. This study aims to explore Typhoon Morakot’s wind field characteristics, including mean wind speed, probability density distribution of fluctuating wind speed, power spectral density, correlation analysis, and coherence, on the basis of data measured by the two anemometers. Results show that the probability density distribution of the fluctuating wind speed of the typhoon follows the Gaussian distribution, and the measured cross-power spectrum of fluctuating wind speed is in good agreement with the modified Karman spectrum. The autocorrelation decreases with the increase in time interval (τ). The longitudinal autocorrelation coefficient decays rapidly with the increase in τ, and the lateral autocorrelation coefficient decays at an unchanged rate. The exponential attenuation coefficients of the longitudinal and transverse fluctuating wind speeds increase with the increase in the mean wind speed, and their mean values are 10.86 and 15.33, respectively. The change trends of the coherence coefficients of the two wind speed components with the mean wind speed are the same. The measured coherence coefficients of the two wind speed components are in good agreement with the exponential function.http://dx.doi.org/10.1155/2021/9968586 |
| spellingShingle | Yanru Wang Yongguang Li Bin Fu Xu Wang Chuanxiong Zhang Guangyu Fan Characteristics of the Near-Ground Typhoon Morakot Shock and Vibration |
| title | Characteristics of the Near-Ground Typhoon Morakot |
| title_full | Characteristics of the Near-Ground Typhoon Morakot |
| title_fullStr | Characteristics of the Near-Ground Typhoon Morakot |
| title_full_unstemmed | Characteristics of the Near-Ground Typhoon Morakot |
| title_short | Characteristics of the Near-Ground Typhoon Morakot |
| title_sort | characteristics of the near ground typhoon morakot |
| url | http://dx.doi.org/10.1155/2021/9968586 |
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