1 6 X X X :  ONLINE CALCULATIONS AVAILABLE AT  https://ponce.sdsu.edu Copyright © 2004-2017 All rights reserved Disclaimer    Skip Navigation Links

♦ HYDRAULICS ♦ Normal and critical depth 101.   Normal depth in a prismatic channel using the Manning equation 102.   Critical depth in a prismatic channel 103.   Discharge in a partially full circular culvert 104.   Critical slope in a prismatic channel 105.   Normal and critical depth in a prismatic channel 106.   Normal depth in a partially full circular culvert 107.   Critical depth in a circular culvert or pipe 108.   Normal depth in a prismatic channel using the Chezy equation Control of flow, hydraulic jump 111.   Sequent depth in a hydraulic jump 112.   Energy loss in a hydraulic jump based on upstream flow conditions 113.   Discharge under a sluice gate 114.   Discharge over a broad crested weir 115.   Discharge in a prismatic channel using the Manning equation 115A.   Discharge in a prismatic channel using the Manning equation, with two side slopes 115B.   Rating curve in a prismatic channel using the Manning equation 116.   Initial and sequent depths in a hydraulic jump 117.   Critical flow in width constriction 118.   Efficiency of the hydraulic jump 119.   Energy loss in a hydraulic jump based on sequent depths Water-surface profiles 121.   M1 water-surface profile 122.   M2 water-surface profile 123.   M3 water-surface profile 124.   S1 water-surface profile 125.   S2 water-surface profile 126.   S3 water-surface profile Water-surface profiles 2 127.   C1 water-surface profile 128.   H2 water-surface profile 129.   A2 water-surface profile 130.   C3 water-surface profile 131.   H3 water-surface profile 132.   A3 water-surface profile Weirs 133.   V-notch weir - fully contracted 134.   90° V-notch weir - partially contracted 135.   Cipolletti weir 136.   Rectangular weir 137.   Standard contracted rectangular weir 138.   Standard suppressed rectangular weir 139.   WES spillway design Channel design, spillways 141.   Tractive force method 142.   Ogee spillway rating 143A.   Froude number 143B.   Vedernikov number 144A.   Limiting contraction ratio 144B.   Set of limiting contraction ratios 145.   Velocity distribution coefficients α and β 146.   Geometric elements of a channel cross section 147.   Design of a channel transition 148A.   Design of a supercritical channel transition: a. With hydraulic jump 148B.   Design of a supercritical channel transition: b. Without hydraulic jump Pipe flow 1 151.   Hazen-Williams formula 152.   Parallel pipes 153.   Pipes connecting three reservoirs 154.   Culvert hydraulics 155.   Hydraulic power 156.   Discharge with Hagen-Poiseuille equation 157.   Head loss with Hagen-Poiseuille equation 158.   Head loss in pipe flow   159.   Discharge in pipe flow   160.   Diameter in pipe flow   Pipe flow 2 161.   Explicit pipe equation for Darcy Weisbach f   162.   Explicit pipe equation for discharge Q   163.   Explicit pipe equation for pipe diameter D 164.   Pump-pipe system 165.   Head loss in orifice   166.   Discharge in orifice   167.   Head loss using Venturi meter   168.   Discharge using Venturi meter   Sediment properties, sediment yield 171.   Fall velocity of a spherical sediment particle 172.   Specific weight of sediments by Lane-Koelzer 173.   Universal Soil Loss Equation 174.   Universal Soil Loss Equation (composite watershed) 175.   Sediment yield by the Dendy and Bolton formula 176.   Initiation of motion using the Shields criterion 177.   Minimum Froude number and minimum permissible velocity using the Shields criterion 178.   Initiation of motion using the Froude number 179.   Reservoir design life Sediment transport formulas 181.   Duboys formula 182.   Meyer-Peter formula 183.   Colby 1957 method 184.   Colby 1964 method 185.   Engelund-Hansen formula 186.   Ackers-White formula 187.   Einstein-Brown formula 188.   Modified Einstein Procedure Dam breach analysis 189.   Dimensionless dam breach analysis Modified Lane Method 191.   Modified Lane method 192.   k1 for Modified Lane method 193.   k1 calculator Channel morphology 194.   Equilibrium channel top width using the Lane et al. theory 195.   Inherently stable channel 196.   Inherently unstable channel Scour formulas 197.   Bridge scour using the HEC-18 formula 198.   Pier and abutment scour using Melville equation 199.   Pier local scour using Jain and Fisher's equation 199A.   Pier scour using Froehlich (1988) equation 199B.   Abutment scour using Froehlich (1989) equation 199C.   Contraction scour under live bed using modified Laursen (1960) equation 199D.   Contraction scour under clear water using Laursen (1963) equation

♦ HYDROLOGY ♦ Peak discharge 201.   Creager formula 202.   Rational method 203.   Rational method for a composite catchment 204.   Slope-area method 205.   USGS methods for magnitude of floods in California 206.   Kinematic wave applicability 207.   Diffusion wave applicability Routing 211.   Linear reservoir 212.   Storage-indication (linear) 213.   Storage-indication 214.   Muskingum 215.   Muskingum-Cunge 216.   Time-area method 217.   Clark unit hydrograph 218.   Cascade of linear reservoirs 219.   Clark 's unit hydrograph compared to Ponce's version 220.   Thomas Problem of flood propagation Regression 221.   Linear regression 222.   Nonlinear regression 223.   Multiple linear regression 224.   Multiple nonlinear regression 225.   Hyperbolic regression 226.   Correlation coefficient of a joint probability distribution Evapotranspiration 231.   Blaney-Criddle 232.   Penman 233.   Penman-Monteith for reference crop 234.   Priestley-Taylor 235.   Thornthwaite 236.   Hargreaves 237.   Penman-Monteith for ecosystems 238.   Shuttleworth-Wallace for sparse crops Flood frequency 241.   Gumbel method 242.   Log Pearson III method 243.   Gumbel method (10000 yr) 244.   Log Pearson III method (10000 yr) 245.   TR-55 graphical method 246.   NRCS curve number 247.   Return period based on risk and design life Unit hydrographs 251.   Flood hydrograph by convolution 252.   Change in unit hydrograph duration using S-hydrograph 253.   Unit hydrograph by the cascade of linear reservoirs 254.   Dimensionless unit hydrograph by the cascade of linear reservoirs 255.   General unit hydrograph by the cascade of linear reservoirs 256.   Series of unit hydrographs by the cascade of linear reservoirs 257.   All series of unit hydrographs by the cascade of linear reservoirs Time of concentration 261.   Time of concentration of small watersheds Overland flow modeling 271.   Overland flow using the diffusion wave method 272.   Dynamic hydraulic diffusivity 273.   Conceptual dimensionless overland flow hydrographs 274.   Conceptual overland flow hydrograph [Beta 150824] 275.   Overland flow with multiple planes in series   [Under construction - Do not use 181020] Numerical analysis 281.   Muskingum-Cunge convergence ratios 282.   Muskingum-Cunge convergence ratios - practical Water balance 286.   Water balance using catchment wetting 287.   Water balance to determine groundwater recharge coefficient Miscellaneous 291.   Storage volume of a detention basin 292.   Online groundwater model [Under development - Run under your own risk - 200522]

♦ WATER QUALITY ♦ 301.   DO sag curve 302.   DO sag analysis 303.   Oxygenation constant 304.   Total dissolved solids (TDS) based on electrical conductivity (EC)

♦ OTHER PROGRAMS ♦ 351.   Calculator (2 operands) 352.   Calculator (3 operands) 353.   Scientific calculator 354.   Perpetual calendar 355.   Arabic to roman numerals 356.   Area common to four inscribed quadrants 357.   Longitudinal distance along a given latitude 358.   Geodistance between two coordinate locations 359.   Compound interest 1 360.   Amortization 1 391.   Programs in Spanish [122] 392.   Programs in Portuguese [91] 393.   Programs in English [167] 394.   Programs in all languages [380] ♦ These programs are a service of the Visualab at San Diego State University, San Diego, California. Please send your comments and suggestions to:    ponceatponcedot sdsudotedu ♦

161217

You are visitor No.    Thanks for visiting.