A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder
This study conducts water channel experiments to measure and compare the lift forces experienced by the seal whisker-shaped sensor and the circular cylinder sensor in both no vortex generator and the wake of two types of circular cylinders. Particle Image Velocimetry (PIV) is employed to capture the...
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| Format: | Article |
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MDPI AG
2025-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/11/3529 |
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| author | Yitian Mao Hao Chang Yaohong Wang Dekui Yuan Yingxue Lv Ziyu Song |
| author_facet | Yitian Mao Hao Chang Yaohong Wang Dekui Yuan Yingxue Lv Ziyu Song |
| author_sort | Yitian Mao |
| collection | DOAJ |
| description | This study conducts water channel experiments to measure and compare the lift forces experienced by the seal whisker-shaped sensor and the circular cylinder sensor in both no vortex generator and the wake of two types of circular cylinders. Particle Image Velocimetry (PIV) is employed to capture the velocity fields of the cylinder wake and the surrounding flow of the seal whisker-shaped cylinders. Spectral analysis of the lift signals reveals that both cylinder types exhibit a primary peak close to the vortex shedding frequency of the upstream circular cylinder. However, seal whisker-shaped cylinders demonstrate relatively weaker components in their lift signals that do not align with the primary frequency, indicating a stronger sensing capability of the upstream cylinder’s wake. Modal analysis using Spectral Proper Orthogonal Decomposition (SPOD) on the PIV-measured velocity fields shows that the lift signals of both cylinder types are primarily induced by the vortices in the upstream cylinder’s wake. |
| format | Article |
| id | doaj-art-bfae7777d3bd48b0a4a9732152a76d8a |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-bfae7777d3bd48b0a4a9732152a76d8a2025-08-20T03:11:20ZengMDPI AGSensors1424-82202025-06-012511352910.3390/s25113529A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped CylinderYitian Mao0Hao Chang1Yaohong Wang2Dekui Yuan3Yingxue Lv4Ziyu Song5Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin 300072, ChinaDepartment of Port Engineering, School of Civil Engineering, Tianjin University, Tianjin 300072, ChinaSchool of Mathematics, Tianjin University, Tianjin 300072, ChinaState Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin University, Tianjin 300072, ChinaCCCC First Harbor Engineering Company Ltd. (Key Laboratory of Coastal Engineering Hydrodynamics, CCCC), Tianjin 300461, ChinaDepartment of Port Engineering, School of Civil Engineering, Tianjin University, Tianjin 300072, ChinaThis study conducts water channel experiments to measure and compare the lift forces experienced by the seal whisker-shaped sensor and the circular cylinder sensor in both no vortex generator and the wake of two types of circular cylinders. Particle Image Velocimetry (PIV) is employed to capture the velocity fields of the cylinder wake and the surrounding flow of the seal whisker-shaped cylinders. Spectral analysis of the lift signals reveals that both cylinder types exhibit a primary peak close to the vortex shedding frequency of the upstream circular cylinder. However, seal whisker-shaped cylinders demonstrate relatively weaker components in their lift signals that do not align with the primary frequency, indicating a stronger sensing capability of the upstream cylinder’s wake. Modal analysis using Spectral Proper Orthogonal Decomposition (SPOD) on the PIV-measured velocity fields shows that the lift signals of both cylinder types are primarily induced by the vortices in the upstream cylinder’s wake.https://www.mdpi.com/1424-8220/25/11/3529seal whisker sensorparticle image velocimetryspectral proper orthogonal decompositionlift signal |
| spellingShingle | Yitian Mao Hao Chang Yaohong Wang Dekui Yuan Yingxue Lv Ziyu Song A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder Sensors seal whisker sensor particle image velocimetry spectral proper orthogonal decomposition lift signal |
| title | A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder |
| title_full | A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder |
| title_fullStr | A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder |
| title_full_unstemmed | A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder |
| title_short | A Comparative Study on the Wake Sensing Mechanism of a Seal Whisker-Shaped Cylinder |
| title_sort | comparative study on the wake sensing mechanism of a seal whisker shaped cylinder |
| topic | seal whisker sensor particle image velocimetry spectral proper orthogonal decomposition lift signal |
| url | https://www.mdpi.com/1424-8220/25/11/3529 |
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