For simplification the flow structure has been presented with reference to the diphase flow of solids and carrier gas.
During the joint flow of both phases we can observe mutual interaction between the particles of the solid phase as well as the impact of both phases on the conveying tube.
The structure of the diphase flow is also shaped by the manner and amount of particles of solid phase in a gas stream introduced simultaneously into the conveying tube.
For the quality description of flow structures in pneumatic conveying systems we use dependences between the average
gas rate referred to the pipeline cross-section