water flow from a faucet will neck down its radius as it flows to the bottom of the sink. It is asserted that this is due to the fact that gravity increases the velocity of the fluid. This is shown at . I am trying to simulate this, and am not having much luck. shows this for a flat surface. Most normal faucets aren't like that. Has anyone seen a good simulation, with explanation of methods for a standard faucet, preferably with flow in the sink as well?