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OpenFlows HAMMER

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OpenFlows HAMMER

Water Hammer and Transient Analysis Software

Efficiently Identify, Manage, and Mitigate Transient Risks

Every time a pump or valve is operated, potentially dangerous transients are introduced in your water distribution or wastewater system. Unchecked, transients can have catastrophic consequences on your pipes and equipment, operators, and customers. Quickly identify critical points in the system that need protection and facilitate sound system design.

What is OpenFlows HAMMER?

OpenFlows HAMMER helps you perform transient analysis and modeling in water or sewer systems to locate trouble spots and determine appropriate serge control strategies. OpenFlows HAMMER’s computationally rigorous engine and easy-to-use interface to efficiently identify, manage, and mitigate the risks associated with transients. 

  • Protect Critical Points
  • OpenFlows HAMMER Computer Software Screen Mockup

    One Solution for all Stormwater Modeling

    Rigorous Engine and Easy-to-Use Interface

    Use the rigorous Method of Characteristics to solve complex transient analysis.

    Quickly Predict and Diagnose Problems

    Model the impact of pump, turbine, and valve operations to determine the most critical points in a system and simulate a wide range of surge protection devices.

    Streamline Model Building

    Jumpstart model building process by leveraging and importing many well-known external data formats.

  • Perform Transient Analysis and Modeling
  • Screenshot of OpenFlows Hammer analyzing scenarios

    Quickly locate trouble spots

    Proven Transient Analysis Algorithm

    MOC (Method of Characteristics), the benchmark standard for hydraulic transient flow analysis, computes results at intermediate points, accurately capturing critical outcomes.

    Precise Simulation of the Impact of Surge Protection Devices

    Select from more than 20 devices and perform an unlimited number of operating scenarios to develop the most appropriate strategy for surge mitigation.

    Full Control of What-if Scenarios

    Configure, run, evaluate, visualize, and compare an unlimited number of scenarios within a single file.

    Capture Fast-moving Transient Phenomena

    Determine their impact on the system and select the most appropriate surge protection equipment using analysis and data visualization features.

OpenFlows HAMMER Computer Software Screen Mockup

One Solution for all Stormwater Modeling

Rigorous Engine and Easy-to-Use Interface

Use the rigorous Method of Characteristics to solve complex transient analysis.

Quickly Predict and Diagnose Problems

Model the impact of pump, turbine, and valve operations to determine the most critical points in a system and simulate a wide range of surge protection devices.

Streamline Model Building

Jumpstart model building process by leveraging and importing many well-known external data formats.

Screenshot of OpenFlows Hammer analyzing scenarios

Quickly locate trouble spots

Proven Transient Analysis Algorithm

MOC (Method of Characteristics), the benchmark standard for hydraulic transient flow analysis, computes results at intermediate points, accurately capturing critical outcomes.

Precise Simulation of the Impact of Surge Protection Devices

Select from more than 20 devices and perform an unlimited number of operating scenarios to develop the most appropriate strategy for surge mitigation.

Full Control of What-if Scenarios

Configure, run, evaluate, visualize, and compare an unlimited number of scenarios within a single file.

Capture Fast-moving Transient Phenomena

Determine their impact on the system and select the most appropriate surge protection equipment using analysis and data visualization features.

OpenFlows HAMMER Computer Software Screen Mockup

OpenFlows HAMMER

  • Identify, manage, and mitigate transient risk and potential damages
  • Capture outcomes with a proven algorithm, comprehensive scenario management and result interpretation

*Prices vary per region. For more options, see licensing and subscriptions section.

User Quote

“Bentley tools provided key data for decision making and completion of the study, ensuring the system's operational efficiency, bringing financial sustainability to the utility and reliability of services to the people.”

— João Félix de Luca Lino, CASAN

FEATURED USER STORIES

OpenFlows Software Resources

Frequently Asked Questions

A transient analysis and water hammer software, HAMMER is the most cost-effective way to control transients. Used successfully on high-profile projects around the world, HAMMER can identify critical points in the system that need protection and facilitate sound system design.

The price of OpenFlows HAMMER varies per region. While there are various types of licensing available, a common choice is the 12-month practitioner license offered through Bentley’s eStore. When you purchase through the eStore, you get a Virtuoso Subscription. This means you get the software and “Keys” (tokens) to redeem for customizable training, mentoring, and consulting services.

No. You do not need other programs to use HAMMER. HAMMER can directly read WaterCAD or WaterGEMS files, and you can import EPANET files.

HAMMER is a transient solution. WaterGEMS is a steady state solution. Even when running extended period simulation, WaterGEMS uses a series of steady state calculations.

Yes, HAMMER can work with gravity flow systems and fluids other than water.

Processor
As per minimum operating system requirements

Operating System
Windows 7, SP1(32 bit/64 bit), Windows 8, 8.1(32 bit/64 bit), Windows 10(32 bit/64 bit)

Memory
As per minimum operating system requirements

Display
As per minimum operating system requirements

Hard Disk
The software itself requires approximately 1.8 Gigabytes (GB) of disk space for installation. Additional space is also required for user model and data files

For the most up-to-date system requirements, visit Bentley Communities.

 

Licensing and Subscription options

Choose What is Right for You

One-year license with training

Virtuoso Subscription – A popular choice for small and medium-sized businesses

Get access to software that comes with training – fast! Bentley’s eStore, Virtuosity, offers a convenient way to lease a 12-month license of Bentley software for a low, upfront cost. Every online purchase through Virtuosity comes as a Virtuoso Subscription that includes training and auto-renewals.

With no contract required, it’s easy to get started quickly.

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One-time purchase with support

Perpetual License with SELECT

A perpetual license of Bentley software is a one-time purchase, with a yearly maintenance subscription, called SELECT. This includes 24/7/365 technical support, learning resources, and the ability to exchange licenses for other software once a year. With SELECT, you will benefit from:

  • License pooling, so you can access your software from multiple computers.
  • Access additional Bentley software with Term Licenses, which allow you to pay for what you use without the upfront cost of purchasing a perpetual license.

Annual renewal quotes are delivered directly to your inbox, and our experienced Renewal Representatives are available to answer your questions and guide you through any changes you’d like to make.

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Enterprise Organizations

We’ve got your back

For larger organizations with in-depth requirements, we offer plans to provide global pricing and access to our comprehensive portfolio of solutions and success plan services. Contact us about how to get access to software, global best practices, implementation services, training, and technical support to help your organization realize its full potential while addressing your unique needs.

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Best-Selling Water Resources Textbook

Computer Applications in Hydraulic Engineering

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.

Prevent costly water hammer damage