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can you explain further?BvU said:The velocity of the liquid makes a difference! Bernoulli.
BvU means you must apply the Bernoulli equation to the two points to find out what the pressures are at those locations.werson tan said:can you explain further?
can you explain how to apply the Beroulli's pronciple so that the P1 = pg(h1 +h2) ? but not P1 = pg(h1 +h2+h3) ?SteamKing said:BvU means you must apply the Bernoulli equation to the two points to find out what the pressures are at those locations.
When the fluid is in motion, the pressure at any point is no longer equal to just the static pressure.
maybe there are some points that i have left out , can you point out please?BvU said:Have you learned about Bernoulli already ? This is a very straightforward application!
Please write out the Bernoulli equation for us (if you know it)?werson tan said:maybe there are some points that i have left out , can you point out please?
Please try again. This is not an equation. I know this, because I don't see an equal sign. I also don't see any density in the equation. None of the terms in the equation are dimensionally consistent with one another. Please look it up and get it right this time. Otherwise, you won't be able to solve your problem.werson tan said:P +z + (v^2) /.2g , wher v = velocity
it should be P/ y + z + (v^2) /.2g , where v = velocity , y = ρgChestermiller said:Please try again. This is not an equation. I know this, because I don't see an equal sign. I also don't see any density in the equation. None of the terms in the equation are dimensionally consistent with one another. Please look it up and get it right this time. Otherwise, you won't be able to solve your problem.
This would be correct if that expression were set equal to a constant, and if that 0.2 in the denominator were a 2. Do you agree?werson tan said:it should be P/ y + z + (v^2) /.2g , where v = velocity , y = ρg
how to relate it to the P1 ? why not P1 = P2 , which is ρg(h1 +h2 +h3) ?Chestermiller said:This would be correct if that expression were set equal to a constant, and if that 0.2 in the denominator were a 2. Do you agree?
Let's try to apply the Bernoulli equation to P1 and P2 to see what it tells us about their relationship. But, before doing that, do you understand the Bernoulli equation? Also, precisely what does z represent in the Bernoulli equation?werson tan said:how to relate it to the P1 ? why not P1 = P2 , which is ρg(h1 +h2 +h3) ?
z represent the difference in height between 2 pointsChestermiller said:Let's try to apply the Bernoulli equation to P1 and P2 to see what it tells us about their relationship. But, before doing that, do you understand the Bernoulli equation? Also, precisely what does z represent in the Bernoulli equation?
You should think of z more as the elevation above a specified datum z = 0. In this problem, a logical choice for the datum would be the center of the pipe. Now please articulate what the Bernoulli equation means to you, or what each of the terms in the equation means physically.werson tan said:z represent the difference in height between 2 points
Pressure at points refers to the amount of force applied per unit area at a specific point. It is a measure of how much force is being exerted on a surface at a particular location.
Pressure at points is a localized measurement, meaning it only applies to a specific point on a surface. In contrast, pressure in general refers to the overall force being exerted on an entire surface.
Pressure at points can vary due to a number of factors, such as the weight of an object, the velocity of a fluid, or the surface area of contact. It can also be affected by external factors like temperature and altitude.
Understanding pressure at points is crucial in many scientific fields, including engineering, physics, and fluid dynamics. It allows us to accurately predict the behavior of fluids and structures under different conditions and make informed decisions about design and safety.
Pressure at points can be measured using various instruments, including manometers, pressure transducers, and pressure gauges. These devices use different techniques to convert the physical force of pressure into an electrical signal that can be read and recorded.