Sensors & Electronics
Macro Property Measurement
Measuring Local Forces in Turbulent Water (367)
Problem: Determine turbulent water force, shear and stress effects on juvenile fish injury mechanisms (i.e. hydro-dams).
Project Activity Scope (from Technical Overview Chart): Measurement and Analysis Method Development through Measurement and Analysis System Applications
PNNL Solution:
- Use instrumented test facility to simulate fish exposure scenarios
- Use high resolution high speed digital cameras to monitor fish motion and deformation when encountering shear and high turbulence environments
- Use 3D tracking software to measure acceleration, jerk, force and fish motion
- Determine non-injurious shear rates for new turbine design criteria
Capabilities Employed to Meet Client Needs: High speed imaging; flow field mapping using laser doppler velocimetry; linear motion control systems; data integration for 3D tracking of objects underwater; data acquisition, management and analysis; PIT-tagging; physiological fish injury assessment; mechanical design for hardware mounting; planning and performance evaluation; validation testing; data analysis and reporting.
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Contact: Robert Mueller
