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New newsletter about stream flow measurement using Parshall flumes October 18, 2021
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Circular culvert
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Rectangular channel
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Simple Manning calculator
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Circular culvert geometry
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Non-circular channel geometry
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Mannings n Coefficients
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Q = VA
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https://www.LMNOeng.com/flowrate.php
Culvert design using inlet and outlet control (graph, chart)
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Gradually varied flow (M1, M2, S2, S3) graph and table
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Inverted siphon for sewer going under river
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Hydraulic jump in a pipe
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Hydraulic jump horizontal rectangular channel
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Critical depth in circular culvert
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Bernoulli (pitot tube, dam, sluice gate)
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Discharge from a tank (steady state)
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Time to empty tank
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Parshall (submerged and free flow) graph, table
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Trapezoidal, rectangular, U (Palmer), Parshall (free flow) graph, chart
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Rectangular
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V notch
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Cipoletti
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Circular culvert
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Rectangular channel
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Triangular channel
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Drag force on hemispheres, cone, ellipsoid, annular disk, cylinder, rod, cube
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Drag force - you enter drag coefficient
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Riprap rock sizing
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Liquid or gas pipe (Darcy-Weisbach)
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Liquid or gas pipe & pump curve (Darcy-Weisbach)
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Water pipe (Hazen-Williams)
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Water pipe & pump curve (Hazen-Williams)
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Weymouth, Panhandle A (and B) equations (compressible gases)
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Choked flow of gas from tank through pipe
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Gas leak rate through hole
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Rayleigh flow (compressible with heat transfer but frictionless)
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Bernoulli (pitot tube, pipe leak, pipe expansion/contraction)
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Bypass loop
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Discharge from a tank (steady state)
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Fire hydrant
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Force due to pipe bend
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Liquid leak rate from pipe crack
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Pipe network (12 pipes)
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Pressure relief valve sizing
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Time to empty tank
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Water hammer (enter valve close or opening time)
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Water hammer (instantaneous valve closure)
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Venturi (liquids)
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Nozzle (liquids)
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Orifice (liquids, D<5cm)
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Orifice (liquids, D≥5cm)
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Orifice (gases, D<5cm)
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Orifice (gases, D≥5cm)
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Specific gravity conversions and density using ideal gas law
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Gas flow conversions (mass, standard, actual)
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Molecular weight
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Gas viscosity
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Non-circular to circular pipe conversions
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Energy (Bernoulli) equation
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Pressure drop in horizontal pipe (laminar flow)
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Pressure loss in horizontal pipe (4000≤Re≤105)
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Static pressure from column height
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Minor losses (valves, etc.)
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Convert discharge coefficient to minor loss coefficient
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Q = VA
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Major losses (pipe friction). Darcy-Weisbach
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Major losses (pipe friction). Hazen-Williams
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Surface roughness and minor loss coefficients
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Moody friction factor for Darcy-Weisbach
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Equivalent length of pipe calculator
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TR-55 peak discharge
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TR-55 detention basin storage
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Time of concentration
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Rational equation for peak discharge
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Water Quality Volume
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Porous bed (packed bed, permeameter)
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Hydraulic gradient and flow direction from x, y, head data
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3-D slug (pulse) injection: advection, dispersion
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1-D step injection: advection, disp, retardation
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Drawdown for unsteady groundwater flow to a pumping well in a confined aquifer (Theis Well function calculator)
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Aquifer transmissivity T=Kb (and K table)
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Volume of liquid in inclined cylinder at 0 to 90 degrees (graph, table)
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Volume of partially full cylinder on its side, sphere, cone
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Unit conversions
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Fluid properties
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Ideal gas law for density
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Molecular weight
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Gas viscosity
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Discussion and references for pipes, culverts
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Friction loss and analysis
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Tank discharge and analysis
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1999
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2000
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2001
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2002
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2003
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2004
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2005
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2006 - 2012
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2013 - 2019
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2020 - 2021
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Newsletters
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Open Channels
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Drag
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Flumes
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Forces
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Groundwater
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Hydrology
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Pressurized Pipes and Conduits
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Waterfall
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Water Hammer
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Weirs
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