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Flow through ConvergentDivergent Duct 
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#1
Jun2408, 02:05 PM

P: 2

Guys, i would like to ask some opinion from u all. About the convergentdivergent duct, it is horizontal flow and the water is incompressible.
So, based on Bernoulli's equations, elevation and density is the same. Because of the frictional losses, the actual total pressure head, H is less than then the Ideal Pressure Head. Any disagreement from you guys, or any other opinion. If the convergentdivergent duct is inclined upward, what will happen??? 


#2
Jun2608, 01:38 PM

P: 53

If the duct was inclined upwards the pressure head will increase at the upstream due to difference in height , but the total head loss will stay constant .
The flow will continue until the pressure head at upstream equals the elevation head at downstream thus velocity head will be zero and the fluid comes to rest. 


#3
Nov408, 03:25 PM

P: 2

Guys,
Following the quesrtion by neostalker, I would like to know what would happen if the flow is with compressible fluids ? What will be pressure loss in this case ? 


#4
Nov708, 12:41 PM

Sci Advisor
P: 2,283

Flow through ConvergentDivergent Duct
http://www.engapplets.vt.edu/fluids/...le/cdinfo.html CS 


#5
Nov1508, 06:21 PM

P: 2

It was a very good start for me. In the case of the pressure relief valves, usually the convergent and divergent sections of the nozzle are perpendicular to each other. Is this angle between going to affect the behaviour of CD nozzle ? 


#6
Nov1508, 08:32 PM

Sci Advisor
P: 2,283

CS 


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