Energy Spectrum-Based Simulation of Turbulence and Its Application to Stochastic Model of Suspension

Abstract

How to simulate the turbulent flow field is the key of the stochastic simulation of suspended sediment transport. In this study, a new method for simulating the turbulent flow field is proposed, in which the energy spectrum of turbulence is taken into account. The trajectory of suspended particles are computed based on the equation of motion in the simulated turbulent flow field, and compared with that of the Monte Carlo method. It clarifies the physical background of Monte Carlo method, in which the hysteresis of the turbulence cannot be expressed.