Numerical investigation of the flow characteristics of Bingham fluid on a slope with corrected smooth particle hydrodynamics

Abstract

The Bingham model can effectively describe the flow behavior of viscoplastic fluid. It is important to study the flow characteristics of Bingham fluid to understand the dynamic mechanism of viscous debris flow. In this study, the Bingham fluid flow on a slope is numerically researched using a corrected smooth particle hydrodynamics (CSPH) method based on periodic density re-initialization and artificial stress. First, the accuracy and stability of the improved SPH method are verified by the benchmark problem impacting droplets. Then, the flow characteristics of the Bingham fluid on the slope and the influence of the slope inclination angle on the Bingham fluid movement process are studied with the improved SPH method. The numerical results show that the improved SPH numerical scheme has higher accuracy and better stability and can deal with the complex flow behavior of the unsteady Bingham fluid.

Nonlinear double diffusive convection in bi-viscous Bingham fluid layer under gravity modulation

“…studied Bingham porous flow mechanics in a horizontal well of a heavy oil reservoir. Many more numerical investigations and simulations on Bingham fluid like startup of Bingham fluid flows in pipelines, two dimensional flow of Bingham fluid by semismooth Newton method, flow of Bingham fluid in a lid driven skewed cavity and its flow with exact Bingham model in a cylindrical enclosure and many more are carried out [5], [6], [7], [8].…”