CHIRAZ KECHKAR
Cherait Yacine
Benamara Fatima Zohra
Abstract
Linear model of compactness constitutes a theoretical approach of the forecasting study of the compactness of granular stacking, it requires the knowledge of certain parameters: proper compactness and interaction functions (effects of skin and interference).
The objective of this communication is to make this model operational, for that in the first part of our work we have started an experimental study on crushed grains, our aim was to determine:
- The proper compactness of each size range,
- The compactness of the binary mixtures which leads to the experimental determination of new analytic expressions concerning the effects of skin and interference.
These expressions reflect the reality with an average error that is tolerable.
The second part of the study illustrates a programming in FORTRAN language, of the linear model of compactness, this programming is used for the validation of the model.
The validation of the model is carried out by comparison ¦prevision/experience¦ relating to mixtures drawn from the literature (of different morphology) gave a rate of very acceptable correlation.
Keywords
linear model, compactness, grains, interaction functions, granular stacking.
