0 50 100 150 200 0 0.1 0.2 0.3 0.4 0.5 back front 0 50 100 150 200 k$_{c}$ R$_{2}$$^{2}$/D$_{1}$ 0 0.1 0.2 0.3 0.4 0.5 F=3.0k$_{B}$T/R$_{1}$ F=7.0k$_{B}$T/R$_{1}$ Figure 12: “Volume fraction” φ ≡ (4 / 3) πR $_{2}$c (where c is concentration) of solute within a cone of angle θ = π/ 9 at the front (red crosses) and at the back (black dots) of the pulled chucker, as a function of the dimensionless ratio k$_{c}$R 2 $_{2}$/D$_{1}$ , for a chucker with R$_{1}$/R$_{2}$ = 10 pulled by an external force of F = 3 . 0 k$_{B}$T/R$_{1}$ or F = 7 . 0 k$_{B}$T/R$_{1}$ . The green dotted line represents the position of the peak of Γ k$_{B}$T/D$_{eff}$ in Figure 11. For F = 3 . 0 k$_{B}$T/R$_{1}$ , the peak of Γ k$_{B}$T/D$_{eff}$ is around 360 and not shown. Note also that the solute particles can overlap. 32