LMNO Engineering, Research, and Software, Ltd. The fluid flow calculations website www.LMNOeng.com

Flow in pipes, open channels, hydrology, groundwater. Liquid, gas, water, air. Venturi, nozzle, orifice flowmeters. Weirs, flumes. Pipe networks, water hammer. Bernoulli, Manning, Moody. Culvert design, inverted siphon. Pressure, flow, discharge, sizing. Drag force. Tank volume, pipe volume, unit conversions.

Greetings! I am Ken Edwards, Ph.D., P.E., and owner of LMNO Engineering. My e-mail is LMNO@LMNOeng.com and phone is (740) 592-1890. Don't have e-mail? You can still send a message.  In addition to software, we provide consulting services.

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New free calculation April 6, 2017: Convert discharge coefficient to minor loss coefficient

CALCULATORS

 Open Channels / Culverts   Manning Equation Detailed Calculators: +Circular culvert   +Trapezoidal channel   +Rectangular channel   Simple Manning calculators: •Simple Manning calculator   •Circular culvert geometry   •Non-circular channel geometry   •Mannings n Coefficients   •Q = VA   Weirs:   +Rectangular   •V notch   •Cipoletti   Compute Waterfall Discharge at Channel Drop-Off (End Depth): +Circular culvert   •Rectangular channel   •Triangular channel Pressurized Conduits   Single pipes and tubes: +Liquid or gas pipe (Darcy-Weisbach)   +Liquid or gas pipe & pump curve (Darcy-Weisbach)   +Water pipe (Hazen-Williams)   +Water pipe & pump curve (Hazen-Williams)   +Weymouth, Panhandle A (and B) equations (compressible gases)   +Choked flow of gas from tank through pipe   +Rayleigh flow (compressible with heat transfer but frictionless)   Venturi, Nozzle, and Orifice Flow meters: +Venturi (liquids)   +Nozzle (liquids)   +Orifice (liquids, D<5cm)   +Orifice (liquids, D≥5cm)   +Orifice (gases, D<5cm)   +Orifice (gases, D≥5cm)   (D is pipe diameter) Hydrology and Groundwater   Hydrology: +TR-55 peak discharge   +TR-55 detention basin storage  +Time of concentration  •Rational equation for peak discharge Miscellaneous +Volume of liquid in inclined cylinder at 0 to 90 degrees (graph, table)   +Volume of partially full cylinder on its side, sphere, cone   •Unit conversions   •Fluid properties   +Ideal gas law for density   •Molecular weight   •Gas viscosity   •Discussion and references for pipes, culverts   Videos / Movies •Friction loss and analysis   •Tank discharge and analysis Newsletters (Fluid flow articles written by Ken Edwards, Ph.D., P.E., Owner of LMNO Engineering) 1999  2000  2001  2002  2003  2004  2005  2006, 2007, 2008, 2009, 2010, 2012  2013, 2014, 2015, 2016 Enter e-mail to receive free future newsletters:  Any other comments:  Privacy Policy: Other than to investigate fraud or cooperate with law enforcement, your information is not distributed to any other entity. LMNO Engineering reserves the right to change this policy.

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