- #1

- 1

- 0

## Homework Statement

a) A orifice, diameter d (

**), in the walls of a tank discharges water under a head, h (**

*m***), subjected to gravitational acceleration, g (**

*m***). If the fluid has density, ρ (**

*m/s2***)and viscosity, μ (**

*kg/m3***), show that the quantity of fluid Q (**

*Ns/m2***) flowing out of the tank may be expressed by the equation.**

*m3/s*## Homework Equations

__Q= h^2 √gh ϕ( μ/(ρ√g h^(3/2) ) ,h/d)__[/B]

## The Attempt at a Solution

I've been struggling on this for over a week. i've worked out there's 3 Pi group and i have all the units in dimensional format eg ρ= M/L^3

I can't seem to work out which repeating variables to use, when ot which pi group.Any help or pointers with this would be very much appreciated as i know how to do the next stages.