mohan d
Member • Jul 25, 2011
pressure vs velocity
how we can get pressure from velocity(know factor is velocity)
mohan d
Member • Jul 25, 2011
Member • Jul 27, 2011
Member • Jul 27, 2011
Member • Jul 27, 2011
They are unrelated properties. There is no relationship between the two. One cannot be derived from the other.mohan dwaht is relation between pressure and velocity?
how we can get pressure from velocity(know factor is velocity)
Member • Jul 27, 2011
I haven't seen a mathematical relation either as Ramani sir rightly say. But what about pressure energy getting converted to kinetic energy?bioramaniThey are unrelated properties. There is no relationship between the two. One cannot be derived from the other.
Member • Jul 27, 2011
Yes and no. Bernoulli's theorem is applicable to a continuum and is only a consequence of conservation of energy in a flowing system. It is possible to have a pipe with a fluid flowing in it at any velocity and any pressure. It is only when you consider the flow in a pipeline at two different cross sections with steady state flow is the Bernoulli's principle applicable. In a gas in a closed system, the ideal gas law applies - p V = nRT. So there is a direct relationship between volume and pressure. Such is not the case with pressure and velocity. Even in Bernoulli's theorem pressure and velocity are not related. All that is implied is that the combined pressure, velocity and vertical height heads is constant at any cross section.ishutopreI haven't seen a mathematical relation either as Ramani sir rightly say. But what about pressure energy getting converted to kinetic energy?
A small leak in high pressure tank would issue a high velocity jet through it.
Also we should look at a diffuser, it reduces velocity while the pressure is less.
I believe Mr. Bernoulli can help here with his famous equation. I think using that equation would be a proper option (perhaps a little mathematical jugglery in that equation would help)