In this paper, the effect of an active flow control system on onset mechanisms rotating stall in axial compressor is experimentally investigated. A particular emphasis thus given patterns present tip region right before and how they evolve when applied. The involved during formation without are carefully assessed compared to literature. To purpose, development first instability into discussed b...

In present paper, dynamic behavior and control of a fluidized bed reactor for polyethylene production has been considered. A double active sites model for Ziegler-Natta catalysts is used for simulation of polymerization reaction. Hydrodynamic behavior of the bed is modeled using a two phase model including bubble and emulsion phases in which bubble phase has plug flow pattern with different...