title: SPH-based numerical simulations of flow slides in municipal solid waste landfills.
abstract: Most municipal solid waste (MSW) is disposed of in landfills. Over the past few decades, catastrophic flow slides have occurred in MSW landfills around the world, causing substantial economic damage and occasionally resulting in human victims. It is therefore important to predict the run-out, velocity and depth of such slides in order to provide adequate mitigation and protection measures. To overcome the limitations of traditional numerical methods for modelling flow slides, a mesh-free particle method entitled smoothed particle hydrodynamics (SPH) is introduced in this paper. The Navier-Stokes equations were adopted as the governing equations and a Bingham model was adopted to analyse the relationship between material stress rates and particle motion velocity. The accuracy of the model is assessed using a series of verifications, and then flow slides that occurred in landfills located in Sarajevo and Bandung were simulated to extend its applications. The simulated results match the field data well and highlight the capability of the proposed SPH modelling method to simulate such complex phenomena as flow slides in MSW landfills.
authors: Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai, People's Republic of China. yhuang@tongji.edu.cn
authors: Yu
authors: Y
authors: Huang
authors: Zili
authors: Z
authors: Dai
authors: Weijie
authors: W
authors: Zhang
authors: Maosong
authors: M
authors: Huang
mesh_terms: D017522:Bosnia and Herzegovina; D003198:Computer Simulation; D057446:Hydrodynamics; D008962:Models, Theoretical; D012037:Refuse Disposal / Q000379:methods*; D015203:Reproducibility of Results; D062611:Solid Waste
chemical_list: D062611:Solid Waste