Electromagnetic Scattering of Near-Field Turbulent Wake Generated by Accelerated Propeller
The electromagnetic scattering study of the turbulent wake of a moving ship has important application value in target recognition and tracking. However, to date, there has been insufficient research into the electromagnetic characteristics of near-field propeller turbulence. This study presents a ne...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-12-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/13/24/5178 |
| _version_ | 1797500940228493312 |
|---|---|
| author | Yuxin Deng Min Zhang Wangqiang Jiang Letian Wang |
| author_facet | Yuxin Deng Min Zhang Wangqiang Jiang Letian Wang |
| author_sort | Yuxin Deng |
| collection | DOAJ |
| description | The electromagnetic scattering study of the turbulent wake of a moving ship has important application value in target recognition and tracking. However, to date, there has been insufficient research into the electromagnetic characteristics of near-field propeller turbulence. This study presents a new procedure for evaluating the electromagnetic scattering coefficient and imaging characteristics of turbulent wakes in the near field. By controlling the different values of the net momenta, a turbulent wake was generated using the large-eddy simulation method. The results show that the net momentum transferred to the background flow field determines the development of the turbulent wake, which explains the formation mechanism of the turbulence. Combined with the turbulent energy attenuation spectrum, the electromagnetic scattering characteristics of the turbulent wake were calculated using the two-scale facet mode. Using this method, the impact of different parameters on the scattering coefficient and the electromagnetic image of the turbulence wake were investigated, to explain the modulation mechanism and electromagnetic imaging characteristics of the near-field turbulent wake. Moreover, an application for estimating a ship’s heading is proposed based on the electromagnetic imaging characteristics of the turbulent wake. |
| first_indexed | 2024-03-10T03:11:06Z |
| format | Article |
| id | doaj.art-e7e92fb61494499190d46979959f82b2 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T03:11:06Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-e7e92fb61494499190d46979959f82b22023-11-23T10:25:50ZengMDPI AGRemote Sensing2072-42922021-12-011324517810.3390/rs13245178Electromagnetic Scattering of Near-Field Turbulent Wake Generated by Accelerated PropellerYuxin Deng0Min Zhang1Wangqiang Jiang2Letian Wang3School of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710000, ChinaSchool of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710000, ChinaSchool of Physics and Optoelectronic Engineering, Xidian University, Xi’an 710000, ChinaCollege of Information and Communication, National University of Defense Technology, Xi’an 710106, ChinaThe electromagnetic scattering study of the turbulent wake of a moving ship has important application value in target recognition and tracking. However, to date, there has been insufficient research into the electromagnetic characteristics of near-field propeller turbulence. This study presents a new procedure for evaluating the electromagnetic scattering coefficient and imaging characteristics of turbulent wakes in the near field. By controlling the different values of the net momenta, a turbulent wake was generated using the large-eddy simulation method. The results show that the net momentum transferred to the background flow field determines the development of the turbulent wake, which explains the formation mechanism of the turbulence. Combined with the turbulent energy attenuation spectrum, the electromagnetic scattering characteristics of the turbulent wake were calculated using the two-scale facet mode. Using this method, the impact of different parameters on the scattering coefficient and the electromagnetic image of the turbulence wake were investigated, to explain the modulation mechanism and electromagnetic imaging characteristics of the near-field turbulent wake. Moreover, an application for estimating a ship’s heading is proposed based on the electromagnetic imaging characteristics of the turbulent wake.https://www.mdpi.com/2072-4292/13/24/5178propeller momentumturbulent wakeelectromagnetic scatteringradar imaging |
| spellingShingle | Yuxin Deng Min Zhang Wangqiang Jiang Letian Wang Electromagnetic Scattering of Near-Field Turbulent Wake Generated by Accelerated Propeller Remote Sensing propeller momentum turbulent wake electromagnetic scattering radar imaging |
| title | Electromagnetic Scattering of Near-Field Turbulent Wake Generated by Accelerated Propeller |
| title_full | Electromagnetic Scattering of Near-Field Turbulent Wake Generated by Accelerated Propeller |
| title_fullStr | Electromagnetic Scattering of Near-Field Turbulent Wake Generated by Accelerated Propeller |
| title_full_unstemmed | Electromagnetic Scattering of Near-Field Turbulent Wake Generated by Accelerated Propeller |
| title_short | Electromagnetic Scattering of Near-Field Turbulent Wake Generated by Accelerated Propeller |
| title_sort | electromagnetic scattering of near field turbulent wake generated by accelerated propeller |
| topic | propeller momentum turbulent wake electromagnetic scattering radar imaging |
| url | https://www.mdpi.com/2072-4292/13/24/5178 |
| work_keys_str_mv | AT yuxindeng electromagneticscatteringofnearfieldturbulentwakegeneratedbyacceleratedpropeller AT minzhang electromagneticscatteringofnearfieldturbulentwakegeneratedbyacceleratedpropeller AT wangqiangjiang electromagneticscatteringofnearfieldturbulentwakegeneratedbyacceleratedpropeller AT letianwang electromagneticscatteringofnearfieldturbulentwakegeneratedbyacceleratedpropeller |