OpenFlows FlowMaster

Special Price USD $672.00
In stock
Taxes not included. Purchase includes 3 Keys

Keys are credits that can be redeemed for expert services and tailored training. Keys do not represent number of licenses.

Hydraulic calculator software

  • Customize environment for fast, easy, and reliable workflows
  • Perform pressure pipe design
  • Design and analyze inlet and gutter, open channel, weirs, and orifices

About this software subscription: This Virtuoso Subscription includes a 12-month practitioner license of this software, that comes with Keys (credits) to unlock training and services.

Efficiently calculate and solve for any unknown property

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.

Customize environments for fast, easy, and reliable workflows

Use a flexible interface to work on multiple projects simultaneously, organize worksheets in folders, and save them for future use. Configure toolbars and dock windows to match your workflows. Engineering libraries require main data to be entered only once, so it can be reused over and over.

Perform pressure pipe design

Design by plugging in known information, or conduct quick checks to automatically solve for pipe length, start and stop elevations and pressures, discharge, diameter, or roughness.

Design and analyze inlet and gutter

Use calculations based on the Federal Highway Administration (FHWA) Hydraulic Engineering Circular No. 12 and Circular No. 22 methodologies to design and analyze grate, curb, ditch, slotted, and combination inlets. When working in sag or on grade conditions, a continuous or locally depressed gutter can be considered; water spread and gutter depth for a gutter or pavement section can also be calculated.

Design and analyze open channel

Model any shape including circular, box, elliptical, parabolic, and irregular channels of ditches and free surface pipes. Under uniform flow, quickly solve for discharge, capacity, normal depth, channel dimensions, slope, or roughness. Compare the results using different friction methods and perform gradually varied flow calculations. Generate profile views from the calculated results and view the points in tabular form.

Design and analyze weirs and orifices

Size your weirs considering discharge, weir coefficients, and crest, headwater, and tailwater elevations for the following types: Rectangular, V-notch, Cipolletti, broad crested, or a custom type. Design rectangular, circular and generic orifice structures accounting for submergence, and produce rating tables and curves for various headwater and tailwater elevations.


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Interface, Editing, and Model Management

  • Built-in interactive tutorials
  • Project Explorer (projects display and management)
  • Element worksheets (for convenient data input)
  • Customizable engineering libraries
  • Material engineering libraries
  • Global engineering-units management
  • Support for ProjectWise


  • Flow algorithms: uniform, critical, gradually varied flow (for free surface flow)
  • Friction-loss methods: Kutter, Manning, Darcy-Weisbach: Swamee and Jain, Darcy-Weisbach: Colebrook-White, Hazen-Williams
  • Open channels: rectangular, triangle, trapezoidal, gutter, parabolic, irregular
  • Pipes: pressure, circular, box, elliptical, irregular
  • Weirs: rectangular sharp-crested, V-notch sharp-crested, Cipolletti sharp-crested, submerged sharpcrested, broad-crested, triangular, and trapezoidal
  • Orifices: rectangular, circular, generic (including the modeling of sluice gates)
  • Inlets: » HEC-12 and HEC-22 flow computation methodologies » Flows in gutter on grade, including uniform gutter cross slope and composite gutter section » Flow in ditch or median section on grade » Inlet types (on grade and in slag): grate, curb opening, ditch, combination, slotted drain

Results Presentation

  • Summarized and detailed reports of inputs and outputs
  • Advanced tabular reporting with filtering and sorting capabilities
  • Rating tables
  • Rating curves
  • Gradually varied flow profile graphs and tables
  • Cross section plots

As per minimum operating system requirement

Operating System

Windows 10, Windows 8/8.1, Windows 7 SP1 (32 & 64-bit for all), Server 2088/R2, Server 2012


As per minimum operating system requirements

Hard Disk

150 MB of free storage space (with additional room for data files) 


Stay nimble and lower costs

We have bundled a 12-month license for trusted Bentley software with customizable training from experts and call it our Virtuoso Subscription. With lower upfront costs and flexible support options, businesses of all sizes can now compete with the industry's heavy hitters.


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