# Mechanical Engineering - Steam Nozzles and Turbines - Discussion

### Discussion :: Steam Nozzles and Turbines - Section 1 (Q.No.6)

6.

The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)

 [A]. remains constant [B]. decreases [C]. increases

Explanation:

No answer description available for this question.

 Ranjesh said: (Jul 13, 2013) 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.