Fluids (part 10)

Second part of the example that uses Bernoulli's equation.

Category:

Education

Tags:

• bernoulli's
• equation
• pressure
• velocity
• physics

[adil06944]

@thekingsfc17 AboveMeIsARetard is correct about Atm pressure for point 2. This is a simple mistake to make.

[adil06944]

very good video but P2 is not zero unless the outside is a vacuum as well. P2 should be equal to atmospheric pressure. Your example where the pressures cancels out would work if the top was open and P1 was atmosphere as well. Then P1-P2=0.

[xNanashiKun]

@bfich123 You can divide the continuity equation by A1 because it is essentially just one variable. V2A1/1000.

[bfich123]

you cant divide the continuity equation by A1, you have to divide each vairable by A1 which leaves you with a mess... you cannot just exclude it because it appears on both sides

[thekingsfc17]

@AboveMeIsARetard there is no atmospheric pressure because the area above the fluid is a vacuum

[AboveMeIsARetard]

you forgot atmospheric pressure... you also forgot it in your buoyancy force balance

[Challsoer]

@Helllocutiepie Velocity is always m/s, if it was in other units it wouldn't be velocity.

[mlatti2]

@helllocutiepie i believe m/s just like it would normally be. if you do the derivations you could figure it out, too

[Helllocutiepie]

What are the units in the output velocity?

[slmUSA]

Thank you!