FlowMaster is an efficient calculator for performing pressure pipe design as well as designing and analyzing inlets, gutters, open channels, weirs, and orifices. Replace the error-prone spreadsheet process and switch to FlowMaster for reliable calculations on a wide variety of hydraulic elements.
This fully updated 9th edition textbook is available for download! Ideal for engineers and students in hydraulics and hydrology, offering theory and real-world applications with problem-solving and modeling exercises featuring OpenFlows WaterGEMS, HAMMER, SewerGEMS, SewerCAD, PondPack, StormCAD, FlowMaster and CulvertMaster.
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FlowMaster is an efficient calculator used in the design and analysis of dozens of element types, such as pressure pipes, open channels, weirs, orifices, and inlets. Replace the error-prone spreadsheet process and switch to FlowMaster for reliable calculations on a wide variety of hydraulic elements.
Doing hydraulic calculations in a spreadsheet is an error-prone process. FlowMaster helps you perform hydraulic calculations for dozens of element types, from pipes and open channels to drop inlets and weirs: Solve for any unknown property. Design for any desired characteristic. Produce detailed reports and rating curves on the fly. FlowMaster improves design productivity, ultimately saving project costs.
One of my favorite parts of civil engineering is performing hydraulics & hydrology (H&H), which involves a lot of math. In 2010 I wrote a blog post on my old blog "Tony's Civil3D World" which caught a lot of attention by engineers, designers, and even Autodesk. This blog post was about creating a hydraulic label for concrete storm pipes under full flow conditions. If you are not from Texas, most cities in Texas require you to show the hydraulic pipe data in the storm profiles. The data displayed the pipe capacity, pipe velocity, pipe friction slope, depth of flow, and flowrate or Q100. Back then in 2010 there were no tools or feature within Civil 3D that could perform this analysis other than using SSA or Hydroflow Express extension tools, and other 3rd party software. Most engineers, would perform this task with their own custom hydraulic spreadsheet or using software such as FlowMaster and CulvertMaster also.
So one night, I decided to tackle this issue and stayed up all night to try to figure out how to automate this process. Most engineers and designers right now are using mtext or a basic pipe label to add the hydraulic data. This manually typing in your hydraulic data for each pipe segment can be a tedious task, which most don't enjoy. For those engineers that perform hydraulics, knows that Civil 3D lacks the hydraulic engineering formulas to perform this task within the pipe labels properties. So I basically had to break down the Mannings Equation to its simplest math equations with expressions. Below are 9 simples steps on how to create you full flow hydraulic pipe label.
Please note, since I released this post in 2010, other engineers have create a more condensed down version of what I created to perform the same task. If I remember right, a 2.0 version of this was later introduce in the Mastering Civil 3D book in 2012 or 2013 release. Second, this pipe label was created for pipes created from upstream to downstream. Hopefully this will give you great ideas on how to take advantage of expression in Civil 3D. Maybe you can create a partial flow pipe data label style, which is more challenging but it can be down. Finally but not least, if you don't know, you can do pipe hydraulics with the new Analyze Gravity Network tool within Civil 3D. Thank you for your time.
Interested in other hydraulic structures like weirs, orifices, or various stormwater inlets such as grate, slotted, or curb, whether in sag or on grade. Need a rating curve for a broad crested weir? No problem. Enter the characteristics, and see the results.
It is not possible to generate these results directly in FlowMaster. Elevation head is a key part of the calculated on both the hydraulic grade and energy grade, and elevation data is not included among the input in a FlowMaster table. If you need to see hydraulic grade and energy grade results, one of the other OpenFlows products is recommended, such as StormCAD, SewerCAD, CivilStorm or SewerGEMS.
The FHWA Hydraulic Toolbox Program is a stand-alone suite of calculators that performs routine hydrologic and hydraulic analysis and design computations. Specific calculators address: Rational Method hydrology, channels, channel linings, weirs, curb and gutter sections, storm drain inlets, detention basins, bridge scour, riprap countermeasures, sediment gradations, and culvert assessments. The Hydraulic Toolbox significantly extends the basic functionality of the historic version of the FHWA Visual Urban Program and other tools. The program allows a user to perform and save hydraulic calculations in one project file, analyze multiple scenarios, and create plots and reports of these analyses. The computations can be carried out in either US Customary Units or the International System of Units.
FlowMaster helps you perform hydraulic calculations for dozens of element types, from pipes and open channels to drop inlets and weirs. FlowMaster improves design productivity, ultimately saving project costs.
Hydrologic, hydraulic, and water quality models all have different purposes and will provide different information. The tables shown at the bottom of this page summarize some of the commonly used modeling software and modeling functions and the main purpose for which they were developed (NOTE: the information in these tables can be downloaded as an Excel file). The tables show the relative levels of complexity of necessary input data, indicate whether the model can complete a continuous analysis or is event based, list whether the model is in the public domain, and for hydraulic models indicate whether unsteady flow calculations can be conducted. For water quality models, the tables indicate whether the model is a receiving waters model, a loading model, or a BMP analysis model. The following definitions apply to the model functions.
The actual process of selecting a model is likely to be an iterative process of model evaluation, adjustments to objectives and/or costs, re-evaluation, and ultimately model selection. Potentially, modelers may select multiple models to meet the objectives of the study. For example one model may be best for hydrology and hydraulics, while another may be best for BMP performance. In these circumstances the modelers should investigate the ability of the models to be linked (USEPA, 2009).
HEC-HMS is a hydrologic rainfall-runoff model developed by the U.S. Army Corps of Engineers that is based on the rainfall-runoff prediction originally developed and released as HEC-1. HEC-HMS is used to compute runoff hydrographs for a network of watersheds. The model evaluates infiltration losses, transforms precipitation into runoff hydrographs, and routes hydrographs through open channel routing. A variety of calculation methods can be selected including SCS curve number or Green and Ampt infiltration; Clark, Snyder or SCS unit hydrograph methods; and Muskingum, Puls, or lag routing methods. Precipitation inputs can be evaluated using a number of historical or synthetic methods and one evapotranspiration method. HEC-HMS is used in combination with HEC-RAS for calculation of both the hydrology and hydraulics of a stormwater system or network.
HEC-RAS is a river hydraulics model developed by the U.S. Army Corps of Engineers to compute one-dimensional water surface profiles for steady or unsteady flow. HEC-RAS is an updated version of HEC-2. Computation of steady flow water surface profiles is intended for flood plain studies and floodway encroachment evaluations. HEC-RAS uses the solution of the one-dimensional energy equation with energy losses evaluated for friction and contraction and expansion losses in order to compute water surface profiles. In areas with rapidly varied water surface profiles, HEC-RAS uses the solution of the momentum equation. Unsteady flow simulation can evaluate subcritical flow regimes as well as mixed flow regimes including supercritical, hydraulic jumps, and draw downs. Sediment transport calculation capability will be added in future versions of the model. The HEC-RAS program is available to the public from the U.S. Army Corps of Engineers. HEC-RAS utilizes the hydrologic results that are developed in HEC-HMS.
WSPRO is a hydraulic model for water surface profile computations developed by the U.S. Geological Survey. The model evaluates one-dimensional water surface profiles for systems with gradually varied, steady flow. The open channel calculations are conducted using backwater techniques and energy balancing methods. Single opening bridges use the orifice flow equation and flow through culverts is computed using a regression equation at the inlet and an energy balance at the outlet. The WSPRO program is available to the public and can be downloaded from the U.S. Geological Survey.
CulvertMaster is a hydraulic analysis program for culvert design. The model uses the U.S. Federal Highway Administration Hydraulic Design of Highway Culverts methodology to provide estimates for headwater elevation, hydraulic grade lines, discharge, and culvert sizing. Rainfall and watershed analysis using the SCS Method or Rational Method can be incorporated if the peak flow rate is not known. CulvertMaster is a proprietary model that can be obtained from Haestad Methods, Bentley Systems, Inc. e24fc04721
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