Observation of Aircraft Wake Vortex Evolution under Crosswind Conditions by Pulsed Coherent Doppler Lidar
The observation and identification of wake vortex are considered important factors to reduce aviation accidents and increase airport capacity. In addition to aircraft parameters, the evolution process of the wake vortex is strongly related to atmospheric conditions, including crosswind, headwind, at...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/1/49 |
| _version_ | 1827698756145905664 |
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| author | Xiaoying Liu Xinyu Zhang Xiaochun Zhai Hongwei Zhang Bingyi Liu Songhua Wu |
| author_facet | Xiaoying Liu Xinyu Zhang Xiaochun Zhai Hongwei Zhang Bingyi Liu Songhua Wu |
| author_sort | Xiaoying Liu |
| collection | DOAJ |
| description | The observation and identification of wake vortex are considered important factors to reduce aviation accidents and increase airport capacity. In addition to aircraft parameters, the evolution process of the wake vortex is strongly related to atmospheric conditions, including crosswind, headwind, atmospheric turbulence, and temperature stratification. Crosswind generally affects the wake vortex trajectories by transporting them to the downwind direction. Additionally, the circulation attenuation of wake vortex is also influenced by crosswind shear or turbulence related to crosswind. This paper implemented the range height indicator (RHI) scanning mode of pulsed coherent Doppler lidar (PCDL) to study the influence of crosswind on wake vortex evolution. The crosswind was obtained from the non-wake vortex regions of the RHI sectors. The method, based on the measurements of radial velocity and spectrum with the broadening feature, was performed to locate wake vortex cores. The wake vortex trajectories with various crosswind strengths were comprehensively analyzed. |
| first_indexed | 2024-03-10T13:35:41Z |
| format | Article |
| id | doaj.art-433ec8c561e648a6bcb10c303c0cf1d7 |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T13:35:41Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-433ec8c561e648a6bcb10c303c0cf1d72023-11-21T07:33:33ZengMDPI AGAtmosphere2073-44332020-12-011214910.3390/atmos12010049Observation of Aircraft Wake Vortex Evolution under Crosswind Conditions by Pulsed Coherent Doppler LidarXiaoying Liu0Xinyu Zhang1Xiaochun Zhai2Hongwei Zhang3Bingyi Liu4Songhua Wu5College of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266100, ChinaCollege of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266100, ChinaCollege of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266100, ChinaCollege of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266100, ChinaCollege of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266100, ChinaCollege of Information Science and Engineering, Ocean Remote Sensing Institute, Ocean University of China, Qingdao 266100, ChinaThe observation and identification of wake vortex are considered important factors to reduce aviation accidents and increase airport capacity. In addition to aircraft parameters, the evolution process of the wake vortex is strongly related to atmospheric conditions, including crosswind, headwind, atmospheric turbulence, and temperature stratification. Crosswind generally affects the wake vortex trajectories by transporting them to the downwind direction. Additionally, the circulation attenuation of wake vortex is also influenced by crosswind shear or turbulence related to crosswind. This paper implemented the range height indicator (RHI) scanning mode of pulsed coherent Doppler lidar (PCDL) to study the influence of crosswind on wake vortex evolution. The crosswind was obtained from the non-wake vortex regions of the RHI sectors. The method, based on the measurements of radial velocity and spectrum with the broadening feature, was performed to locate wake vortex cores. The wake vortex trajectories with various crosswind strengths were comprehensively analyzed.https://www.mdpi.com/2073-4433/12/1/49wake vortexpulsed coherent Doppler lidarcrosswindevolution process |
| spellingShingle | Xiaoying Liu Xinyu Zhang Xiaochun Zhai Hongwei Zhang Bingyi Liu Songhua Wu Observation of Aircraft Wake Vortex Evolution under Crosswind Conditions by Pulsed Coherent Doppler Lidar Atmosphere wake vortex pulsed coherent Doppler lidar crosswind evolution process |
| title | Observation of Aircraft Wake Vortex Evolution under Crosswind Conditions by Pulsed Coherent Doppler Lidar |
| title_full | Observation of Aircraft Wake Vortex Evolution under Crosswind Conditions by Pulsed Coherent Doppler Lidar |
| title_fullStr | Observation of Aircraft Wake Vortex Evolution under Crosswind Conditions by Pulsed Coherent Doppler Lidar |
| title_full_unstemmed | Observation of Aircraft Wake Vortex Evolution under Crosswind Conditions by Pulsed Coherent Doppler Lidar |
| title_short | Observation of Aircraft Wake Vortex Evolution under Crosswind Conditions by Pulsed Coherent Doppler Lidar |
| title_sort | observation of aircraft wake vortex evolution under crosswind conditions by pulsed coherent doppler lidar |
| topic | wake vortex pulsed coherent Doppler lidar crosswind evolution process |
| url | https://www.mdpi.com/2073-4433/12/1/49 |
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