Professional pipe flow analysis tools for engineers and students. From basic calculations to advanced network analysis.
Calculate pressure drop due to friction in pipes using the Darcy-Weisbach equation
Calculate flow rate and head loss for water flow in pipes
Determine flow regime (laminar, transitional, or turbulent)
Calculate optimal pipe diameter for desired flow rate and velocity
Find friction factor using Moody diagram relationships
Solve energy conservation problems in fluid flow
Analyze flow distribution in parallel pipe systems
Calculate total head loss in series pipe systems
Analyze pump performance and system curves
Solve complex flow distribution between multiple reservoirs
Calculate pressure surge in pipe systems
Calculate flow through control valves
Sum K-values for elbows, valves, entrances and exits; equivalent length
Iterate Colebrook-White and compare Swamee-Jain and Haaland f
Collapse series or parallel pipes into one equivalent diameter
Balance looped pipe networks with iterative ΔQ corrections
Gravity sewers and open-channel flow, including part-full circular pipes
Available vs required NPSH on the pump suction line
Discharge over a high point and crown vapor-pressure check
Variable-head drain through an orifice (Torricelli)
Sudden and gradual section-change losses (Borda-Carnot)
Differential-pressure flow meters with β and Cd
Combined pump curves and duty point on a system curve
Wave celerity, t_c = 2L/c, and Joukowsky surge for rapid vs slow closure
Critical depth, sequent depth, and energy dissipation in a jump
Rectangular and V-notch sharp-crested weir discharge
Inlet vs outlet control capacity for a circular barrel
Peak runoff Q = CiA and Manning full-pipe check
Weymouth and Panhandle A compressible flow estimates
Maximum upsurge and mass-oscillation period after load rejection
Water ρ, μ, P_v vs temperature and Moody roughness catalogue
Convert flow, pressure, head, length and velocity units