Bernoulli's Equation

[amywy88]

What does Bernoulli's equation actually show, I mean what would be the purpose of applying it to a flow, what information would that give you??

In the context of shaped charge jets!!

Thanks!

[Peter Pedant]

For Chrissakes, is this a joke ?

Take Euler's momentum equation (that kinda says something about the conservation of momentum) and integrate it (I think you have to do along a path)
then you get Bernouilli's eqn

P + 1/2 p v2 + pgh = const, under an amazing variety of conditions (I think in a variable flow it can even be a f(t) )

What does it show? all sorts of things, each term can looked on as an energy term
and so it can be looked on as a statement of conservation of energy

do you mean jet of water or jet engine?

Spurt of water? apply the equation to the surface of the spurt because P will be const (and atmospheric)

and combine with A1v1+ A2V2 (Fluid eqn) for any cross section A1 , A2 and any velocity v1 and v2

and with I Cs (inital conditions) you shouldbe able to solve for all points along the flow.

I havent done this for twenty years but as you can see, I clearly found it interesting when I did.

[brunods]

Common even my cat knows those things...