# Bernoulli principle and venturi effect.

by syphex
Tags: bernoulli, effect, principle, venturi
 P: 7 I have a specific problem involving two reservoirs filled with water with a height difference Y and total head H, and was wondering if a venturi like device could be used to calculate the resulting pressure head x and if it will exceed the bottom of reservoir 1. Also the drain length is d. The pipe is the same thickness 20mm diameter. I havent included the horizontal length of the pipes because I assume v=$\sqrt{2gh}$ 1.) Does the addition of reservoir 2 cause a difference in height at x? 2.) Would x rise to a height above the bottom of reservoir 1, because of H? 3.) What drain length d is needed to reduce x to below the bottom of reservoir 1? 4.) Additional reservoirs of the same height are connected together at the base adjacent to 1. Does this effect flow rate and thus increase x? Or can it be thought of as a larger reservoir which has the same head pressure anyway and thus doesn't effect x? If someone would write me a formula relating these variables that would be a great help, thanks.