Question

Consider the following application of Bernoulli's equation: 0.5ρv21+(P1−P2) = 0.5ρv22. Assume that P1<P2, and both speeds (v1 and v2) are greater than zero.

Select the qualitative Bernoulli bar chart that is consistent with the equation.

K, + P, = P, + K, K, + P, = P, + K,

Answer 1

Since

Pi< P2

Therefore by above equation ​​​​​​

0.5ρυά – 0.5ρυξ > 0

Therefore ​​​​​​

- u>0

Or ​​​​​​

(01 – U2) (01 + 02) > 0

Or ​​​​​​

(1 - ) 0

Therefore ​​​​​​

11 > 1

Thus $P_{1}$ bar will be low and $v_{1}$ or kinetic energy $K_{1}$ bar will be high

And $P_{2}$ bar will be high and $v_{2}$ or kinetic energy $K_{2}$ bar will be low

These conditions are satisfied by 4th option. Therefore 4th option is correct