Two-phase Flow Measurements by Nuclear Magnetic Resonance (nmr)
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چکیده
We pioneered NMR studies of concentrated suspensions starting in the late 1980’s (Majors, et al., 1989; Altobelli, et al., 1991; Abbott, et al., 1991). In those studies, we measured concentration and velocity of the liquid component in either in pipe or Couette flow. If we compare these early studies of suspensions with more recent ones (Hampton, et al., 1997), imaging time has gone from 40 minutes to 8 minutes and the imaging matrix has increased from 32 x 32 to 128 x 128. In the interim, we have performed many concentrated suspension flows in both pipe and Couette geometries, with different particle sizes and shapes, and different kinds of liquids. We summarize the main results here and list the publications that emanated from this grant. (
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