High-velocity flow measurement with vortex shedding meters offers accurate, low-pressure loss in demanding ducts.
This book describes developing vortex shedding flowmeters that can measure fluid flow in the ducts of the Space Shuttle Main Engines at velocities far beyond typical commercial meters, while keeping pressure loss manageable. It also covers how test setups compare to reference meters and how duct configuration and temperature or fluid properties affect performance.
The discussion walks through how these meters work, the challenges of installing them in tight, bent ducts, and the methods used to evaluate their signals. Test facilities include cryogenic and water setups, and the work emphasizes signal quality, spectrum analysis, and how flow conditions influence meter response. The study compares measurements in liquid oxygen, liquid nitrogen, and water, highlighting how viscosity and temperature impact signal strength and stability.
- Learn how vortex shedding meters convert shedder bar vibrations into electrical signals and how frequency spectra indicate performance.
- See how duct geometry, including bends and straight sections, affects accuracy and pressure loss.
- Understand the role of signal processing, including FFT analysis, in assessing meter stability and repeatability.
- Explore test results across different fluids and bore sizes to gauge reliability and potential applications.
Ideal for readers of engineering texts on flow measurement and high-velocity fluid systems, this edition helps you evaluate whether this approach fits demanding propulsion and duct-flow scenarios.