b) A streamlined nozzle of diameter d is supplied at constant head, the magnitude of the head being larger compared to d. The nozzle discharges directly into the atmosphere and is so shaped that, the issuing jet is parallel at the nozzle exit. To increase the flow, rate a shroud of the diameter D, is firmly secured to the nozzle. The jet expands to fill the shroud and the shroud is long enough to ensure that the flow leaving is steady and parallel. Determine: The diameter of the shroud so that the flow rate is maximised, and the percentage increase in discharge.
b) A streamlined nozzle of diameter d is supplied at constant head, the magnitude of the head being larger compared to d. The nozzle discharges directly into the atmosphere and is so shaped that, the issuing jet is parallel at the nozzle exit. To increase the flow, rate a shroud of the diameter D, is firmly secured to the nozzle. The jet expands to fill the shroud and the shroud is long enough to ensure that the flow leaving is steady and parallel. Determine: The diameter of the shroud so that the flow rate is maximised, and the percentage increase in discharge.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:b) A streamlined nozzle of diameter d is supplied at constant head, the magnitude
of the head being larger compared to d. The nozzle discharges directly into the
atmosphere and is so shaped that, the issuing jet is parallel at the nozzle exit.
To increase the flow, rate a shroud of the diameter D, is firmly secured to the
nozzle. The jet expands to fill the shroud and the shroud is long enough to
ensure that the flow leaving is steady and parallel. Determine: The diameter of
the shroud so that the flow rate is maximised, and the percentage increase in
discharge.
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