Discrete Element Method
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A discrete element method (DEM), also called a distinct element method is any of family of numerical methods for computing the motion of a large number of particles of micron-scale size and above. Though DEM is very closely related to molecular dynamics, the method is generally distinguished by its inclusion of rotational degrees-of-freedom as well as stateful contact and often complicated geometries (including polyhedra). With advances in computing power and numerica...
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. A discrete element method (DEM), also called a distinct element method is any of family of numerical methods for computing the motion of a large number of particles of micron-scale size and above. Though DEM is very closely related to molecular dynamics, the method is generally distinguished by its inclusion of rotational degrees-of-freedom as well as stateful contact and often complicated geometries (including polyhedra). With advances in computing power and numerical algorithms for nearest neighbor sorting, it has become possible to numerically simulate millions of particles on a single processor. Today DEM is becoming widely accepted as an effective method of addressing engineering problems in granular and discontinuous materials, especially in granular flows, powder mechanics, and rock mechanics.
