Evaluation of SPH and FVM Models of Kinematically Prescribed Peristalsis-like Flow in a Tube

Peristaltic flow is important in many biological processes, including digestion, and forms an component of any silico model the stomach. There a clear need to verify simulations such flows. An analytical solution was identified that can be used for verification, which gives equation net volumetric over cycle applied sinusoidal wall motion. Both smooth particle hydrodynamics (SPH) code (from CSIRO), being develop stomach includes motion, buoyancy, acid secretion food breakdown, Ansys Fluent Finite Volume Method (FVM) solver, widely industry complex engineering flows, are this exercise. give excellent agreement with analytic range occlusion ratios 0.1–0.6. Very similar velocity fields obtained two methods. The impact parameters affecting stability accuracy described investigated. Having validated moving capability SPH it confidence include