220
4 Numerical Methods and Simulation for Pebble Flows
Fig. 4.33 The discharge
processes of pebbles in
different base angles in the
“Star-Fa” recirculation
mode. (Note the a upper-, b
mid- and c lower-rows
correspond to the bed
geometries in Fig. 4.32a–c,
respectively; the left-, midright-columns correspond to
the time points when 0,
0.5N p , and N p pebbles are
recirculated.)