user's manual for corhyd: an internal diffuser hydraulics model - IfH

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Fig. 9: Examples for local losses in pipe flows (Miller, 1990) Institut für Hydromechanik, Universität Karlsruhe 13
Table 2: Local loss formulations Type of Loss Inlet (Reference velocity is V) Definition Sharp edged inlet (Idelchik, 1986) ζ = 0.5 Code (see files: barchart.m, plotlosses.m, report.m, time_series.m, totalHead.m): The value ζ = 0.5 is automatically foreseen in the code, if a feeder pipe exists. The loss is added only after the whole calculation directly in the result files. Although most of the constructions do have sharp edged inlets from the headworks into the feeder pipe other configurations may applied by using the following graphs and changing the code in the mentioned files (zeta_entry = “new value”). Rounded inlets (Idelchik, 1986, Miller, 1978) Institut für Hydromechanik, Universität Karlsruhe 14
Page 1 and 2: Universität Karlsruhe Institut fü
Page 3 and 4: Acknowledgments The authors like to
Page 5 and 6: 10.1 Local loss formulations: Divis
Page 7 and 8: 1 Introduction CorHyd is a computer
Page 9 and 10: Fig. 1: Outfall configuration showi
Page 11 and 12: where j 0 denotes the buoyancy flux
Page 13 and 14: 2.4 Manifold processes Pipe hydraul
Page 15: Fig. 8: Local port/riser branch los
Page 19 and 20: Gradual contraction (Idelchik 1986)
Page 21 and 22: Where H denotes the headloss, V duc
Page 23 and 24: Table 3: Equivalent sand roughness
Page 25 and 26: Institut für Hydromechanik, Univer
Page 27 and 28: For a constant sea water level and
Page 29 and 30: (16) solved for r in (15) and assum
Page 31 and 32: 3.1.4 Automatic implementation of l
Page 33 and 34: elevation difference between diffus
Page 35 and 36: The iteration stops if the differen
Page 37 and 38: Table 4: CorHyd subroutines and the
Page 39 and 40: 4 Data Input Input can either be do
Page 41 and 42: (ρ 0,max > ρ 0 ). Further sensiti
Page 43 and 44: should allow for riser velocities,
Page 45 and 46: Fig. 19: First input sub-window for
Page 47 and 48: 10 7050.000 0.000 -2.500 11 7000.00
Page 49 and 50: Fig. 22: Graphical output: Energy a
Page 51 and 52: given dilution requirements and maj
Page 53 and 54: 6.3 Off design conditions It was co
Page 55 and 56: Table 5: Sensitivity of involved pa
Page 57 and 58: Fig. 24: Side view and cross sectio
Page 59 and 60: Fig. 27: Flow characteristics for d
Page 61 and 62: under different flow conditions. Th
Page 63 and 64: Fig. 32: Side view and cross sectio
Page 65 and 66: Fig. 34: Flow characteristics for:
Page 67 and 68:
Fig. 36: Flow characteristics for:
Page 69 and 70:
Fig. 38: Flow characteristics for:
Page 71 and 72:
Table 6: Comparison of construction
Page 73 and 74:
seaward end, which can be prevented
Page 75 and 76:
Especially for this long diffuser a
Page 77 and 78:
Jirka, G.H., Doneker, R.L. and Hint
Page 79 and 80:
10 Annex 10.1 Local loss formulatio
Page 81 and 82:
Institut für Hydromechanik, Univer
Page 83 and 84:
Institut für Hydromechanik, Univer
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