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Measurements of Waves in a Wind-wave Tank Under Steady and Time-varying Wind Forcing
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Synchronous three-dimensional detection method for multiple parameters of wind fields based on vector principle.

Shenghui Yang1,2, Wenwei Li1,2, Xingxing Liu1,2

  • 1College of Engineering, China Agricultural University, Beijing, China.

Frontiers in Plant Science
|November 4, 2022
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Summary
This summary is machine-generated.

This study introduces a novel 3D wind sensor for air-assisted sprayers, enabling simultaneous measurement of wind speed and direction. This technology optimizes sprayer performance by providing crucial wind-field data.

Keywords:
detectionflow fieldsmultidimensional systemssensorsvectorwind

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Area of Science:

  • Agricultural Engineering
  • Aerodynamics
  • Sensor Technology

Background:

  • Conventional wind field detection for sprayers is often multidimensional and requires separate sensor axes.
  • Existing methods limit the optimization of sprayer operation based on wind distribution.
  • Accurate, simultaneous 3D wind data is crucial for improving sprayer efficiency and application accuracy.

Purpose of the Study:

  • To develop a novel method for synchronous measurement of wind speed and direction in three dimensions.
  • To overcome the limitations of separate sensor axes in conventional multidimensional detection.
  • To provide a reliable tool for optimizing air-assisted sprayers based on real-time wind characteristics.

Main Methods:

  • A novel sensing structure with a triangular pyramid shape was designed, utilizing cantilever pieces and strain gauges.
  • Wind flow was treated as vectors, and strain gauges detected deformation caused by wind thrust on a central ball.
  • Calculation models were developed based on 'strains-force-wind pressure-wind velocity' relationships and vector principles for simultaneous data acquisition.

Main Results:

  • The novel method achieved synchronous 3D measurement of wind speed and direction.
  • Calibration showed minimal relative error for wind speed (0.06% to 10%) and less than 5% for direction.
  • Effective measurement of wind within artificial tree canopies demonstrated practical application and identified fan wind distribution characteristics.

Conclusions:

  • The proposed method reliably measures 3D wind speed and direction simultaneously.
  • This technology offers a practical solution for evaluating wind-field characteristics of sprayers, enhancing operational efficiency.
  • The findings support the optimization of air-assisted sprayers through precise, real-time wind data acquisition.