Abstract: Parameter values required in a previous rock model are estimated using the invariant imbedding identification technique applied to a bit-tooth drop test. Sequential data generated during the ...

Abstract: A kinematic model of a roller cone bit is developed and integrated with a rock fracture description to simulate test data from a study on the effects of bit offset. The model predicted bit ...

Abstract: A cold test model study of the staged cascade fluidized bed coal combustion process is described. Proper cascade flow of solids through the system was found to be sensitive to bed and downcomer ...