Is the unidirectional flow property dependent on the pressure gradient at both ends? It seems that at low pressure differences you could still get flow in the reverse direction. Yet, at high pressures I imagine you would see some leakage, too. Does it only work for medium pressures?
In will work in many regimes. In the microfluidic literature, the valve is judged by its diodicity. Different flow rates, sizes, and viscosity, results in different geometry for the tesla valve.
