The Study of the Similarity Theory of the Debris Flow Model Experiment
The goal of this paper is to establish an experimental theory of the debris flow model as the foundation for future flow model construction through the characteristics of debris flow's basic movement: flow motion similarity and sediment motion similarity. The study yields 10 similarity rules in the debris flow model, which are useful in structuring the debris flow model as well as providing accurate data to the engineers in the prevention design process. This paper also studies the expanded debris flow and suggests two similarity rules, shear stress and viscosity index, which are different from Bingham's rules. These two rules serve as a reference in the graveled debris flow model experiment.
This paper discussed the time field information fusion technique based on the Dampster Shafter method. A new wear mode recognition method of marine diesel engine is put forward. This new method can decrease the uncertainty on the recognition. A wear mode recognition expert system is built and the reliability of recognition results is testified on the practice.