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Calculations
Recommendations
Backwash head loss in Pluvitec Master pipes
Circular weir
Parshall flume
Atmospheric pressure given altitude
Tee with lateral inflow
Dynamic viscosity of atmospheric air
Velocity gradient in pipes and circular orifices
Velocity gradient
Input data
Incoming flow (Q)
m³/s
m³/h
m³/d
L/s
L/h
L/d
Temperature
°C
°F
K
Diameter (D)
mm
cm
m
km
ft
in
Inner surface roughness (k)
mm
cm
m
km
ft
in
Output data
Velocity
m/s
cm/s
mm/s
m/min
cm/min
mm/min
m/h
m/d
ft/s
in/s
Velocity gradient
1/s
Description
Calculate velocity gradients in pipes and circular orifices
References
VIANNA, Marcos R. Hidráulica aplicada às estações de tratamento de água. 6. Ed. Belo Horizonte, 3I, 2019.