Because discharge(Q) remain constant always through a pipe.

Mayur said:
(Dec 6, 2014)

The discharge of steam in CD nozzle INCREASES after throat because pressure energy in convergent part is converted into kinetic energy in divergent part.

Ravi Kishan said:
(Jan 19, 2015)

Discharge in any pipe flow remains constant only the velocity decrease when area increases.

Praveen said:
(Aug 28, 2015)

What is convergent and what is divergent?

Jatin Lahoriya said:
(Aug 30, 2015)

Continuity equation self satisfies the statement as mass flow rate of any fluid remains constant throughout any cross section (here it is a nozzle).

Sudesh Jangid said:
(Nov 13, 2015)

P decrease then v increase, so according av = c.

v increase Q discharge increase.

Sudesh Jangid said:
(Nov 13, 2015)

P decrease then v increase, so according av = c.

v increase Q discharge increase. So in divergent portion of nozzle P remain constant.

So Q will be remain content.

Arijit Jana said:
(Dec 31, 2015)

How can it possible? I can not understand please describe.

Prasad said:
(Jun 10, 2016)

The only varying parameters are area and velocity assuming density as constant for sub sonic flow. Discharge is always constant for entire nozzle.

Sharad said:
(Jul 19, 2016)

C is the answer. Because the discharge is not constant as area varies from convergent section to throat and throat to divergent section also velocity is different therefore Q = A * V.

A and V varies so Q also varies it us not constant.

To have higher velocity and discharge we use C-D nozzle.

In convergent nozzle, we have a constraint for above two factor.

Lalu said:
(Apr 17, 2017)

What if flow is compressible?

Shadab Alam said:
(Apr 28, 2018)

What does discharge mean?

Vishnu Gopi said:
(Feb 26, 2020)

Discharge is always remaining constant after the throat that means in divergent portion of the nozzle.

Bereket said:
(Jul 27, 2020)

Q = V1A1 = V2A2 is flow rate thus Q is constant.

Patel Uvesh said:
(Dec 26, 2020)

Mass flow is always constant and m = area * velocity /specific volume.
Q = area * velocity.

Patel Uvesh said:
(Dec 26, 2020)

Mass flow is always constant and m = area * velocity /specific volume.
Q = area * velocity.

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