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. 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.
Purchase PIN for calculations About LMNO Engineering About
calculations/Printing Links
CALCULATIONS
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
Specialty programs:
Culvert Design using Inlet and Outlet Control
Gradually varied flow (M1, M2, S2, S3) graph
Inverted siphon for sewer going under river
Hydraulic jump
Bernoulli (pitot tube, dam, sluice gate)
Discharge from a Tank
Flumes:
Parshall (submerged and free flow)
Trapezoidal, Rectangular, U (Palmer), Parshall (free
flow)
Weirs: Rectangular
•V Notch •Cipoletti
Compute discharge from water depth at channel drop-off:
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)
Rayleigh flow (compressible with heat transfer but
frictionless) Specialty programs:
Force due to Pipe Bend
Pipe network (12 pipes) Bypass Loop
Bernoulli (pitot tube, pipe leak, pipe
expansion/contraction)
Water Hammer Discharge from a Tank
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)
Properties of gases:
Specific gravity conversions and Density using ideal gas law
Gas flow conversions (mass, standard, actual)
•Molecular Weight
•Gas
Viscosity
Simple programs:
•Non-Circular to Circular Pipe
Conversions
•Energy Equation
•Static Pressure from
elevation
•Minor Losses (valves, etc.)
•Q = VA
•Major Losses (pipe friction).
Darcy-Weisbach
•Major Losses (pipe friction).
Hazen-Williams
•Surface Roughness and Minor Loss
Coefficients
•Moody Friction Factor for
Darcy-Weisbach
•Equivalent Length of Pipe Calculations
|
Hydrology
and Groundwater
Hydrology:
SCS TR-55 Peak discharge
SCS TR-55 Detention basin storage
Time of concentration
•Rational equation for
peak discharge Groundwater:
Porous bed (packed bed, permeameter)
Hydraulic gradient and flow direction from x, y,
head data
3-D Slug injection: advection, dispersion
1-D Step injection: advection, disp,
retardation |
Miscellaneous
Volume of liquid in inclined cylinder at 0
to 90 degrees
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)
Vol 1 (1999) Vol 2 (2000) Vol 3 (2001) Vol 4 (2002) Vol 5 (2003) Vol 6 (2004) Vol 7 (2005) Vol 8, 9, 10 (2006, 2007, 2008)
|
View list of calculations by topic (less clutter but more clicks):
Newsletters Channels
Flow Flumes Forces Groundwater Hydrology Pipes RainfallMaps Statics Videos Volume Waterfall Water Hammer
Weirs
Visit LMNO Engineering's FluidDrag.com
for drag force calculations.
© 1998-2008 LMNO Engineering, Research, and
Software, Ltd. All rights reserved.
LMNO Engineering, Research, and Software, Ltd.
7860 Angel Ridge Rd. Athens, Ohio 45701 USA
(740) 592-1890
LMNO@LMNOeng.com http://www.LMNOeng.com
Site updated on September 2, 2008
(Re-organized a few pages)