Flow Analysis for the Intake of Low-Head Hydro Power Plants

Ruprecht, Albert; Maihöfer, M.; Göde, E.

doi:10.1007/978-94-010-9385-9_52

Cited by 1 publication

(2 citation statements)

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“…Numerous literature can be found on pipe bifurcations (Bouchayer 1925, Franke 1955, Iwanami et al 1969, Ito and Imai 1973, Khodadadi 1990, Pa´al et al 2003, Costa et al 2006, Sierra-Espinosa et al 2006, but very few investigations have been reported in the area of trifurcations (Gladwell and Tinner 1965, Syamala et al 1968, Lakshmana and Syamala 1969, Ruprecht et al 1996, Basara et al 1999. Stevens (1926) had developed a general formula for energy losses at the junction of j intersecting pipes, by applying the principle of conservation of energy and momentum.…”

Section: Introductionmentioning

confidence: 96%

“…According to this approach (Lakshmana and Syamala 1969), the energy loss at a pipe junction consists of diversion loss and entry loss. Ruprecht et al (1996Ruprecht et al ( , 2003 and Go¨de et al (1999) have done computational studies of the vortex instability in pipe trifurcations. Imitzer (2000) has measured the velocity field in pipe trifurcations.…”

Section: Introductionmentioning

confidence: 98%

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Energy losses at pipe trifurcations

Rao

Kumar

2009

Urban Water Journal

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In the case of pipe trifurcation, previous observations report negative energy losses in the centre branch. This causes an anomaly, because there should not be any negative energy loss due to conservation of energy principle. Earlier investigators have suggested that this may be due to the non-inclusion of kinetic energy coefficient (a) in the computations of energy losses without any experimental evidence. In the present work, through experimentally determined velocity profiles, energy loss coefficients have been evaluated. It has been found that with the inclusion of a in the computations of energy loss, there is no negative energy loss in the centre branch.

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