Soil cutting for preparing a proper seedbed with the purpose of crop production is tillage. Though tillage is a dynamic process, most of the previous studies are based on quasi-static analysis following the passive earth pressure theories. The focus of this research was to describe the mechanical behavior of soil under the action of a tillage tool from the dynamic perspective using fluid flow analysis. This paper describes the application of a commercially available, three-dimensional computational fluid dynamics (CFD) model to simulate and analyze dynamic tool interaction with soil during tillage.Soil has been considered as a Bingham material taking into account its non-Newtonian viscoplastic behavior. Simulations used a rectangular flow geometry based on the tool influence zone obtained from previous research. Soil flow behavior has been studied as a conduit with the interaction of a bluff body in the flow domain. With a more realistic approach, free-surface simulations were carried out to observe the soil deformation pattern due to tool interaction during tillage. Soil pressure on the tool surface was also investigated.
Dynamic Analysis of Soil Tillage Using Computational Fluid Dynamics
Sae Technical Papers
2005 SAE Commercial Vehicle Engineering Conference ; 2005
2005-11-01
Conference paper
English
Experimental validation of computational fluid dynamics modeling for narrow tillage tool draft
Online Contents | 2009
|Experimental validation of computational fluid dynamics modeling for narrow tillage tool draft
Online Contents | 2009
|Experimental validation of computational fluid dynamics modeling for narrow tillage tool draft
Automotive engineering | 2009
|Evaluation of Dynamic Derivatives Using Computational Fluid Dynamics
Online Contents | 2012
|FLUID DYNAMICS - Investigation of Three-Dimensional Dynamic Stall Using Computational Fluid Dynamics
Online Contents | 2005
|