Appendix
199
Constricted rectangular weirs
Type Q
max
[m
3
/h] α β γ C
RectWThr 2H 51,18 1,500 1 0,0000000 0,038931336
RectWThr 3H 108,4 1,500 1 0,0000000 0,059018248
RectWThr 4H 289,5 1,500 1 0,0000000 0,077862671
RectWThr 5H 434,6 1,500 1 0,0000000 0,097949584
RectWThr 6H 613,3 1,500 1 0,0000000 0,118036497
RectWThr 8H 1493 1,500 1 0,0000000 0,156346588
RectWThr T0 2861 1,500 1 0,0000000 0,194656679
RectWThr T5 6061 1,500 1 0,0000000 0,3106200
RectWThr 2T 13352 1,500 1 0,0000000 0,4141600
Rectangular weirs according to French standard NFX
Type Q
max
[m
3
/h] α β γ C
NFX Rect T0/5H 2427,3 1,400 2,000 0,0107097 0,2801013
NFX Rect T0/T5 12582,5 1,500 0,000 0,0000000 0,1951248
Constricted rectangular weirs according to French standard NFX
Type Q
max
[m
3
/h] α β γ C
NFX RectWThr 2H 53,5 1,500 1,600 -0,1428487 0,0528094
NFX RectWThr 3H 111,7 1,500 1,600 -0,1115842 0,0744722
NFX RectWThr 4H 299,1 1,500 1,600 -0,0975777 0,0966477
NFX RectWThr 5H 445,8 1,500 1,600 -0,0884398 0,1187524
NFX RectWThr 6H 626,2 1,500 1,600 -0,0816976 0,1407481
NFX RectWThr 8H 1527,8 1,500 1,600 -0,0634245 0,1810272
NFX RectWThr T0 2933,8 1,500 1,600 -0,0671398 0,2285268
Trapezoidal weirs
Type Q
max
[m
3
/h] α β γ C
Trap.W T0/3H 1049 1,500 1,000 0,0000000 0,2067454
Trap.W T0/T5 11733 1,500 1,000 0,0000000 0,2067454
Triangular weirs
Type Q
max
[m
3
/h] α β γ C
V-Weir 22,5 276,0 2,500 1,000 0,0000000 0,0000313
V-Weir 30 371,2 2,500 1,000 0,0000000 0,0000421
V-Weir 45 574,1 2,500 1,000 0,0000000 0,0000651
V-Weir 60 799,8 2,500 1,000 0,0000000 0,0000907
V-Weir 90 1385 2,500 1,000 0,0000000 0,0001571