EHD Gas-Powder Two-Phase Flow

  • Antonio Castellanos
Conference paper
Part of the International Centre for Mechanical Sciences book series (CISM, volume 380)


For the pneumatic conveying of powder in a horizontal pipe flow, due to the slow flow, the flow pattern observed is complex (Zenz, 1960), since under high speed fully dispersed flow, powder may directly impact on the wall and generate electrostatic discharges from triboelectrifications (Sugaya et al., 1989). On the other hand, the optimum pneumatic conveying flow pattern is slug flow with suitable.slug lengths, since the maximum total amount of powder transported per pressure drop may be achieved (Chang et al., 1988). On the other hand, many attempts have been made to transport and control powder flow using an EHD force (Masuda et al. 1974; Aoyama and Masuda, 1977). In this chapter, EHD gas-powder two-phase flow phenomena will be introduced.


Pressure Drop Slug Flow Incline Angle Powder Flow Total Pressure Drop 
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Copyright information

© Springer-Verlag Wien 1998

Authors and Affiliations

  • Antonio Castellanos
    • 1
  1. 1.University of SevillaSpain

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