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Feb 9, 2017 at 15:31 comment added Borun Chowdhury What you want to do is understand how the walls force the molecules on squeezing and how the effect gets transmitted to the bulk and spreads out (or rather in) to reach equilibria. Good luck with that! But it is beyond Bernoulli's principle which is a coarse grained result.
Feb 9, 2017 at 15:29 comment added Borun Chowdhury The transition region can be broken into small segments and each of them treated as "non-transitioning regions" as long as the segments are larger than the thermalization scale. So now you will say you want to go to shorter length scales and then we are back to the non-thermodynamic regime where Bernoulli's principle is simply not valid. Basically you are trying to use an equation beyond its range of validity.
Feb 9, 2017 at 13:05 comment added user142405 I meant the region where the section area changes.
Feb 9, 2017 at 12:33 comment added Pirx No. What you are talking is a principle of hydrostatics, which has nothing to do with your question, I think; even though by now, with your last comments, I admit that I have no idea what it really is you are after. What "transition region"? Is this about unsteady flow now?
Feb 9, 2017 at 11:35 history protected Qmechanic
Feb 9, 2017 at 11:14 answer added Borun Chowdhury timeline score: 1
Feb 8, 2017 at 19:26 comment added user142405 However, Pascal's equation of "force multiplication" may answer the question. What do you think?
Feb 8, 2017 at 10:30 comment added user142405 Hello! I think I've been asking the wrong question. I wanted to know what happens at the "transition region" and Bernoulli's law describes what happens when the fluid is already flowing. Also the principle is applied in continuum mechanics where things are not explained at the molecular level.
Feb 7, 2017 at 23:13 comment added Bill N Corrected the title
Feb 7, 2017 at 23:13 history edited Bill N CC BY-SA 3.0
Correct the misconception in the title
Feb 7, 2017 at 21:37 comment added Pirx I fixed the OP's mistake (probably just a typo) to eliminate some of the confusion.
Feb 7, 2017 at 21:36 history edited Pirx CC BY-SA 3.0
fixed error in first sentence: area increase leads to pressure increase
Feb 7, 2017 at 18:33 history edited user142405 CC BY-SA 3.0
edited body
Feb 7, 2017 at 18:09 comment added D. Ennis So far none of the answers below have dealt with your original misconception. According to Bernoulli's principle, the pressure increases in the section of hose with the larger cross section.
Feb 7, 2017 at 17:21 answer added Erico M Junior timeline score: -1
Feb 7, 2017 at 16:46 answer added Gert timeline score: 6
Feb 7, 2017 at 16:29 comment added Žarko Tomičić At he molecular level number of particles coliding with the unit area of the surface decreases as the area increases.
Feb 7, 2017 at 16:06 history edited user142405 CC BY-SA 3.0
deleted 1 character in body
Feb 7, 2017 at 15:34 history asked user142405 CC BY-SA 3.0