user's manual for corhyd: an internal diffuser hydraulics model - IfH
user's manual for corhyd: an internal diffuser hydraulics model - IfH
user's manual for corhyd: an internal diffuser hydraulics model - IfH
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Table 2: Local loss <strong>for</strong>mulations<br />
Type of<br />
Loss<br />
Inlet<br />
(Reference<br />
velocity is<br />
V)<br />
Definition<br />
Sharp edged inlet (Idelchik, 1986)<br />
ζ = 0.5<br />
Code (see files: barchart.m, plotlosses.m, report.m, time_series.m, totalHead.m):<br />
The value ζ = 0.5 is automatically <strong>for</strong>eseen in the code, if a feeder pipe exists. The loss is added<br />
only after the whole calculation directly in the result files. Although most of the constructions do<br />
have sharp edged inlets from the headworks into the feeder pipe other configurations may applied<br />
by using the following graphs <strong>an</strong>d ch<strong>an</strong>ging the code in the mentioned files (zeta_entry = “new<br />
value”).<br />
Rounded inlets (Idelchik, 1986, Miller, 1978)<br />
Institut für Hydromech<strong>an</strong>ik, Universität Karlsruhe 14