# HYA-File

Hydraulics

## File

*Hydraulik (*.HYA)
*=================
*|-----|-----|-----|---------------------------|-------------------------------------------|---------------------------------------------|
*|     |     |     |    Wehrüberfall (1)       |               Rohrleitung(en) (2)         |                 Turbine (3)                 |
*| HYA | WSP | Kng |Wehr- Wehr- Wehr-       Fak| Einl- Länge   D     A-   Um-    kB   Zeta |   P    Qmax  Qmin   Hoehe  Ver-  %von   eta |
*| ID  |unten|     |Form  kante Breite  mue hue| kante              quer  fang             | Leistg                     lust  Qmax       |
*|-----|-----|-----|---------------------------|-------------------------------------------|---------------------------------------------|
*|  -  |KTRID| 1-3 | 1-5   mNN     m     -  KTR| mNN     m     mm     m2    m    mm        |   KW    m3/s  m3/s   mNN     -     %     -  |
*|-<->-|-<->-|-<->-|-<->-<----->-<--->-<-->-<->|<---->-<---->-<--->-<--->-<--->-<--->-<--->|-<---->-<--->-<--->-<----->-<--->-<--->-<--->|
|  A  |  B  |  C  |  D     E      F     G   H |   I      J     K     L     M     N     O  |    P     Q     R      S      T     U     V  |
*|-----|-----|-----|---------------------------|-------------------------------------------|---------------------------------------------|


## Explanations

General:

• A: ID of the hydraulic element
• B: ID of the control function which supplies the tailwater level (e.g. "y02")
• C: Identifier: Calculation-type: 1: weir overflow, 2: pipe, 3: turbine

Weir overflow:

• D: Weir form [1-5]:
• 1: wide-crested
• 2: roof-shaped
• 3: Height/Width = 1
• 4: Height/Width < 0.4
• 5: sharp-edged
• E: Weir crest [müNN]
• F: Weir width [m]
• G: weir coefficient [-] 0 < µ ≤ 1
• H: flexible/movable weir: ID of the control-function(e.g. "y02"),whichs value shall be subtracted from the weir height.(refer to Hints).

Pipe(s): if there are several pipes one after another the following pipe sections are to be written into the next line (without a new HYA ID)

• I: Height of the inlet edge
• J: Pipe length
• K: Pipe diameter
• L: Cross-section area (if K is given, the cross-section area is not needed)
• M: Perimeter (if K is given, the perimeter is not needed)
• N: Roughness coefficient
• O: Coefficient of loss (Inlet losses)

Turbine:

• P: Turbine capacity [kW]
• Q: Turbine absorption capacity [m³/s]
• R: Minimum flow rate [m³/s]
• S: Inlet height [müNN]
• T: Coefficient of losses [-] 0 < η < 1
• U & V: Minimum 2 rows with supporting points for the efficiency-curve ηT=f(Q/Qmax) of the turbine

## Hints

### Tailwater level for turbines and weirs

A Tailwater level is supplied by a control-function (system status). The ID of the desired control-funtcion must be named in the column WSP unten. The IDs of the control-functions are assigned in the KTR-File.

If no tailwater level is supplied, the tailwaterlevel will be determined as a MIN_mNN, which is a constant with the value -490 müNN.

### Lowerable weir

A lowerable weir can be implemented by writing the ID of a control-function (refer to KTR-File) into the column Fak hue. The value/factor from the control-function will be subtracted from the normal weir crest for each time increment (not multiplied).