Figure 7.

Transient single-layer model with baseline parameters. The IFP is shown at the ankle level (z = 0) and at the top of the wrap (z = h/2). (a) No wrap is yet present. The initial condition is the steady solution with constant capillary pressure from Fig. 3a (p_c = 10 mmHg). At t = 0 venous insufficiency begins. The final condition is that in Fig. 4a. (b) A compression wrap (0 < z < h/2) is applied gradually during the first 100 s to the final condition from (a). The final condition in (b) is shown in Fig. 4b. (c) Single-layer model without gravity with baseline vascular interactions and (d) without gravity and without vascular interactions (${\beta }_c={\beta }_L=0$). Values for $L_v/L_g$ remain low throughout for panels c and d.