of fluid through the valve. Figure 5. Zoomed-in view of a silicone venous valve test section. a) Open configuration under favorable pressure gradient. a) Closed configuration under adverse pressure gradientWith a functional silicone venous valve model and flow control system that can provide pressuredrop and flow rate data, the system can now be used alongside numerical simulations to explorethe effect of valve morphology on pumping performance. Further, we plan on introducing dyeand tracer particles to the flow to visualize regions of fluid stasis, and to approximate theresidence time of fluid in the venous valve region to further determine the effect of valvemorphology on flow conditions conducive to VTE.Reflections on student