LMNO Engineering, Research, and Software, Ltd.

The fluid flow calculations website

Pipe Flow Analysis and Design Software Section

Darcy-Weisbach losses:  Circular Liquid or Gas Pipes   Liquid or Gas Pipes with Pump Curve

Hazen-Williams losses:  Circular Water Pipes  Water Pipes with Pump Curve

Pipe Network (12 pipes)     Water Hammer    Bypass Loop

Weymouth Equation for compressible gases

Flow Meters:  Orifice (liquids, D<5cm)  Orifice (liquids, D>5cm)   Orifice (gases, D<5cm)  Orifice (gases, D>5cm) 
  Venturi (liquids and gases)    Nozzle (liquids)

Bernoulli equation for pitot tube, pipe leak, pipe expansion/contraction, simplified orifice, nozzle, venturi

Culvert Design using Inlet and Outlet Control - submerged and unsubmerged

Free calculations (indicated by •) :

• Non-Circular to Circular Pipe Conversions   • Energy Equation

• Minor Losses (valves, etc.)   • Major Losses (pipe friction). Darcy-Weisbach

• Major Losses (pipe friction). Hazen-Williams  • Surface Roughness and Minor Loss Coefficients

To LMNO Engineering home page (more calculations)

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LMNO Engineering, Research, and Software, Ltd.
7860 Angel Ridge Rd.   Athens, Ohio 45701  USA   Phone and fax: (740) 592-1890
LMNO@LMNOeng.com    http://www.LMNOeng.com