Sounds like you've found the elevation change.When we evaluate the bernoulli's equation-p/(density*gravity)+v^2/(2*gravity)+z=constant.
we get a value whose unit is metre.how am i supposed to actually interpret this result???
It's not necessarily an elevation change. The equation is written so that the terms are in units of length. That constant on the right if anything could be multiplied by specific weight to get the total pressure (the summation of static and dynamic pressure). In order to get a change in elevation, one would need two separate conditions. If you have velocity and pressure at two instances, then you can solve for [tex] z_2 - z_1 [/tex] or [tex] \Delta z[/tex] which is the change in elevation.Sounds like you've found the elevation change
Sorry I misread the equation the OP wrote, I thought the OP had point 2 on the RHS (i.e. an energy balance), which is how the equation is normally used in practice.It's not necessarily an elevation change. The equation is written so that the terms are in units of length. That constant on the right if anything could be multiplied by specific weight to get the total pressure (the summation of static and dynamic pressure). In order to get a change in elevation, one would need two separate conditions. If you have velocity and pressure at two instances, then you can solve for [tex] z_2 - z_1 [/tex] or [tex] \Delta z[/tex] which is the change in elevation.
euler equation can also be derived simply by a mechanics analysis on a fluid element neglecting viscous forces.Ok.thanks a lot everybody,i think i have got it....... By the way i have a little confusion over how the euler's equation for fluids was derived..(from which bernoulli's equation was obtained by integration considering the fluid is incompressible) Can anyone please post a link where the derivations is properly explained??