LMNO Engineering, Research, and Software, Ltd.

Fluid Flow Calculators and Consulting
www.LMNOeng.com

Ken Edwards photoGreetings! I am Ken Edwards, Ph.D., P.E., and owner of LMNO Engineering. My e-mail is LMNO@LMNOeng.com and phone is (USA): (740) 707-2614.

Contact me about your project needs. We have served clients worldwide since 1998.



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September 5, 2024: Water Pressure Loss Calculator has new page layout.



CALCULATORS
Red Dot () calculations are free.


open channel, culvert 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 (new layout)

Specialty Programs:

+Culvert design using inlet and outlet control (graph, chart)

+Gradually varied flow (M1, M2, S2, S3) graph and table

+Inverted siphon for sewer going under river

+Hydraulic jump in a pipe

+Hydraulic jump horizontal rectangular channel

+Critical depth in circular culvert

+Bernoulli (pitot tube, dam, sluice gate)

+Discharge from a tank (steady state)

+Time to empty tank

Flumes:

+Parshall (submerged and free flow) graph, table

+Trapezoidal, rectangular, U (Palmer), Parshall (free flow) graph, chart

Weirs:

+Rectangular

V notch

Cipoletti

Compute Waterfall Discharge at Channel Drop-Off (End Depth):

+Circular culvert

Rectangular channel

Triangular channel




Riprap

+Riprap rock sizing



Drag Force

+Drag force on hemispheres, cone, ellipsoid, annular disk, cylinder, rod, cube

+Drag force - you enter drag coefficient




Hydrology and Groundwater

Hydrology:

+TR-55 peak discharge

+TR-55 detention basin storage

+Time of concentration (new layout)

Rational equation for peak discharge (new layout)

+Water Quality Volume

Groundwater:

+Darcy's Law (packed bed, permeameter)

+Hydraulic gradient and flow direction from x, y, head data

+3-D slug (pulse) injection: advection, dispersion

+1-D step injection: advection, disp, retardation

+ Drawdown for unsteady groundwater flow to a pumping well in a confined aquifer (Theis Well function calculator)

Aquifer transmissivity T=Kb (and K table)


piping Pressurized Conduits

Single pipes and tubes:

+Pipe flow - liquid or gas (Darcy-Weisbach)

+Pump curve calculator - liquid or gas pipe (Darcy-Weisbach friction)

+Water pipe (Hazen-Williams friction)

+Pump operating point - water pipe (Hazen-Williams friction)

Compressible (gases):

+Weymouth, Panhandle A (and B) equations (compressible gases)

+Choked flow of gas from tank through pipe

+Gas leak rate through hole

+Rayleigh flow (compressible with heat transfer but frictionless)

Specialty Programs:

+Bernoulli (pitot tube, pipe leak, pipe expansion/contraction)

+Bypass loop

+Discharge from a tank (steady state)

+Fire hydrant

+Force due to pipe bend

+Liquid leak rate from pipe crack

+Pipe network (12 pipes)

+Pressure relief valve sizing

+Time to empty tank

+Water hammer (enter valve close or opening time)

+Water hammer (instantaneous valve closure)

Venturi, Nozzle, and Orifice Flow meters (D is pipe diameter):

+Venturi (liquids)

+Nozzle (liquids)

+Orifice (liquids, D<5cm)

+Orifice (liquids, D≥5cm)

+Orifice (gases, D<5cm)

+Orifice (gases, D≥5cm)

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 (Bernoulli) equation

Pressure drop in horizontal pipe (laminar flow) (new layout)

Pressure loss in horizontal pipe (4000≤Re≤105) (new layout)

Static pressure from column height

Minor losses (valves, etc.)

Convert discharge coefficient to minor loss coefficient

Q = VA (new layout)

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 calculator


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

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 - 2012  2013 - 2019  2020 - 2024

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flow diagram water pipe experiment water hammer equation detention pond pressure flow calculator air manifold experiment gas and liquid network modeling

View list of calculators by topic (less clutter but more clicks):
Newsletters  Open Channels  Drag  Flow  Pressure  Flumes  Forces  Groundwater  Hydrology  Pressurized Pipes and Conduits  RainfallMaps  Statics  Videos  Volume  Waterfall  Water Hammer  Weirs

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© 1998-2024 LMNO Engineering, Research, and Software, Ltd.  All rights reserved.

LMNO Engineering, Research, and Software, Ltd.
7860 Angel Ridge Rd.   Athens, Ohio  45701   USA   (740) 707-2614
LMNO@LMNOeng.com    https://www.LMNOeng.com