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[[ | [[Datei:Abflussaufteilung_nach_Schwellwertkonzept_EN.png|thumb|Discharge distribution using a threshold value]] | ||
[[ | In this case the second outflow only becomes active if the inflow exceeds the threshold of <code>Qcrit</code>. In the threshold value approach, the 2nd outlet (e.g. stormwater overflow) is only activated once a critical inflow <code>Qcrit</code> is exceeded, causing the throttled outflow to back up, reaching the overflow threshold. Since in reality a perfect division of the outflows after reaching the threshold value is usually never achieved, a diversion coefficient can also be specified in order to better represent actual conditions. | ||
It is defined as: <math>\mbox{ | [[Datei:Trennschärfe_EN.png|thumb|Definition of the diversion coefficient in Talsim-NG]] | ||
It is defined as: <math>\mbox{diversion coefficient}= \frac{Q_{in}(Q_{out}=5 \cdot Q_{crit})}{Q_{crit}}</math> |
Aktuelle Version vom 26. November 2020, 10:37 Uhr
In this case the second outflow only becomes active if the inflow exceeds the threshold of Qcrit
. In the threshold value approach, the 2nd outlet (e.g. stormwater overflow) is only activated once a critical inflow Qcrit
is exceeded, causing the throttled outflow to back up, reaching the overflow threshold. Since in reality a perfect division of the outflows after reaching the threshold value is usually never achieved, a diversion coefficient can also be specified in order to better represent actual conditions.
It is defined as: [math]\displaystyle{ \mbox{diversion coefficient}= \frac{Q_{in}(Q_{out}=5 \cdot Q_{crit})}{Q_{crit}} }[/math]