ABSTRACT

Figure 5.6.6 Motion of a small bubble relative to a large bubble in a frame of reference moving with the large bubble, subject to an upward temperature gradient. The dotted circle is described by the equation . The arrows indicate the velocity of the small bubble, and the solid lines depict the bubble trajectories. Bold lines denote the limiting trajectories. Areas marked a, d, and e correspond to attraction, whereas areas marked b and c correspond to repulsion. The dark dots indicate saddle-point equilibrium positions.