A Sensing and Monitoring System for Hydrodynamic Flow Based on Imaging and Ultrasound

Area of Science:

• Environmental Engineering
• Sensor Technology
• Hydrodynamics

Background:

• Built environments require monitoring to prevent uncontrolled modifications and ensure stability.
• Traditional monitoring methods may be insufficient for complex urban hydrodynamic conditions.
• Sensing technologies offer promising solutions for real-time infrastructure assessment.

Purpose of the Study:

• To investigate the application of imaging and ultrasound sensors for monitoring channel hydrodynamic behavior.
• To develop a robust system capable of assessing water levels and flow velocities in urban environments.
• To address challenges posed by debris in water channels using enhanced velocimetry techniques.

Main Methods:

• Utilized ultrasound sensors to measure water height against predefined limits.
• Employed imaging techniques for flow velocity analysis beneath the water surface.
• Implemented an enhanced Particle Image Velocimetry (PIV) method to differentiate debris from water flow and measure subsurface particle velocity.

Main Results:

• The ultrasound approach accurately monitored water levels.
• The enhanced PIV technique successfully measured flow velocity even when channels were obstructed by trash.
• Integrated rainfall and hydraulic level data provided a comprehensive understanding of channel dynamics.

Conclusions:

• Sensing technologies, specifically ultrasound and enhanced imaging velocimetry, are effective for monitoring built environment hydrodynamics.
• The developed methods provide reliable data for managing water levels and flow velocities, even in challenging debris-filled conditions.
• This approach enhances the control and stability of urban infrastructures by enabling proactive monitoring and management.