Venturi Effect explained at molecular level

Going beyond the classic explanation of using Bernoulli's principle, I offer two alternative perspectives. Flow curvature can be used to describe the two-dimensional pressure field, essentially by-passing the need to use the change in flow speed as an explanation stepping stone. I also show how the apparently chaotic molecular collisions can be deciphered to reveal how the propagation of energy shape the flow field. I continue to build on the concept of speed signals (tracking the movement and transfer of kinetic energy) as a visual tool to isolate useful information and to describe flow mechanisms.