A probabilistic model of annular-dispersed flow in a reactor subchannel as seen by cylindrical geometry impedance probes

A probabilistic model of annular-dispersed flow in a reactor subchannel as seen by cylindrical geometry impedance probes in an inhomogeneous, isotropic medium of water and steam. The model is based on a derived finite difference equation for the potential at the center of a cube in terms of the potentials of the adjacent cubes and their material properties (Ampere's circuital law, low-frequency case).

The probabilistic model returns admittance (or capacitance) signals for two sets of probes based on specified film and two-phase void fractions. These signals will have temporal variations based on flow velocities, probe separation distance, and frequency content of signals. The model assumes one dimensional flow.