Phase Discrimination in Gas-Particle Flows Using Thermal Anemometry

[+] Author and Article Information
M. L. Ritsch, J. H. Davidson

Civil Engineering Department, Colorado State University, Fort Collins, CO 80523

J. Fluids Eng 114(4), 692-694 (Dec 01, 1992) (3 pages) doi:10.1115/1.2910088 History: Received July 17, 1992; Online May 23, 2008


A technique to measure gas-phase turbulence modification by micron-sized particles with thermal anemometry is presented. Bridge output is first digitized and then spikes produced by particle impingement on the hot-wire probe detected using a slope threshold method and replaced by holding the last digital value before each spike. This procedure has negligible effect on flow statistics if spike duration is short compared to the time between spikes.

Copyright © 1992 by The American Society of Mechanical Engineers
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