Non-Invasive Diagnostics for Measuring Physical Properties and Processes in High Level Wastes

Powell, Robert ; Pfund, David

University of California, Davis

关键词: 12 Management Of Radioactive Wastes, And Non-Radioactive Wastes From Nuclear Facilities;    Shear;    Magnetic Resonance;    Diagnostic Techniques;    Physical Properties;   

DOI  :  10.2172/841672
RP-ID  :  DOE/ER/14727
RP-ID  :  FG07-96ER14727
RP-ID  :  841672

美国|英语

来源: UNT Digital Library

【 摘 要 】

This research demonstrated the usefulness of tomographic techniques for determining the physical properties of slurry suspensions. Of particular interest was the measurement of the viscosity of suspensions in complex liquids and modeling these. We undertook a long rage program that used two techniques, magnetic resonance imaging and ultrasonic pulsed Doppler velocimetry. Our laboratory originally developed both of these for the measurement of viscosity of complex liquids and suspensions. We have shown that the relationship between shear viscosity and shear rate can be determined over a wide range of shear rates from a single measurement. We have also demonstrated these techniques for many non-Newtonian fluids which demonstrate highly shear thinning behavior. This technique was extended to determine the yield stress with systems of interacting particles. To model complex slurries that may be found in wastes applications, we have also used complex slurries that are found in industrial applications