conveying velocity, pipe wear, and particle degradation. An experimental study has Yuji Tomita addressed the characteristics of swirling flow pneumatic conveying (SFPC) for the Professor, total pressure drop, solid flow patterns, power consumption, and additional pressure Department of Mechanical Engineering, drop. Polystyrene, polyethylene, and polyvinyl particles with mean diameters of 1.7, K...

The problem considered is the Stokes and Navier-Stokes flow through a system of two pipes in the gravity field; inside a vertical pipe there is a free heavy piston. Theoretical analysis, the existence and non-uniqueness of solution, has been completed recently by the authors. Here we present numerical analysis, using finite elements methods, of the stationary state with respect to the angle bet...

The motion of a single elongated (Taylor) bubble propagating in a transparent vertical pipe is studied experimentally in stagnant liquid, as well as in upward and downward liquid ̄ow. Digital image processing of a sequence of video images serves as the main experimental method for the study of the Taylor bubble motion. In addition, the distribution of the velocities in front of the bubble and i...