Numerical study of periodic turbulent flow through a corrugated duct

Periodic fully developed fluid flow, characteristics are obtained numerical ly for three-dimensional turbulent flow in a corrugated duet. The method is based on the fully conserved control-volume representation of fully ellipt ic Navier-Stokes equations in a nonorthogonal body-fitted coordinate system . Turbulence is modeled ria the two-equation (k-epsilon) model. The computa tions were performed for the ratio of the corrugation height to the interwa ll spacing ranging from 0.45 to 2.0, and for the corrugation angles of 30 d egrees and 45 degrees. Experiments were also performed for pressure drop, v elocity, and turbulence measurements, and for flow visualization.