The Use of Similitude in Dynamic Discrete Element Modelling.
Proc 1st U S Conf Discrete Element Methods Golden Colorado 10/19- 20/89 Colorado Sch Mines 10 PP :10 pages
This U.S. Bureau of Mines paper presents results demonstrating the use of similitude in dynamic discrete element modelling (dem) of certain types of geotechnical problems. The use of similitude is a well-established procedure in developing physically realistic laboratory-scale models. Similitude can also be used in dynamic numerical modelling of phenomena characterized by rigid-body motion. Using approximate scaling procedures within a dem algorithm can greatly reduce computer execution time while maintaining solution accuracy within acceptable limits as defined by the analyst. Examples of discrete element modelling of subsidence and underground caving computed both with and without numerical scaling of gravity show results that are nearly identical with the scaled model, taking a small fraction (1/10) of the computation time of conventional methods.
Proc. 1st U.S. Conf. Discrete Element Methods, Golden, Colorado, 10/19- 20/89, Colorado Sch. Mines, 10 PP.