FLOW ANALYSIS OF GROWTH PROCESS IN TURBIDITY CURRENTS DURING LONG PROPAGATION

Abstract

 Turbidity currents in growth process during long-distance are analyzed using OpenFOAM. The Smagorinsky model of LES is used as the turbulence model. Numerical results show that the turbidity currents during the acceleration and growth does not depend on the fluid supply from the rear, forms a self-acceleration cycle only by the flow at the front and flows long distances. In addition, results are shown that the thermal shape turbidity currents extends its own length with the flow and grows into a plume, which sustains the flow for a long time.