OpenFlows Sewer

Sewer hydraulic modeling software simulates how wastewater and stormwater move through sewer networks, helping engineers analyze and understand system behavior, identify capacity issues, predict flooding, and evaluate the impact of new developments. It supports better design, planning, and operational decisions.

Sanitary sewer modeling creates a detailed digital model of a wastewater collection system to assess performance under different flow conditions. It helps engineers identify bottlenecks, prevent overflows, and plan system improvements by evaluating both dry‑weather and wet‑weather behavior.

The term inflow and infiltration (I&I) refers to the unintended entry of stormwater and groundwater into a sanitary sewer system. Inflow is the rapid introduction of stormwater from sources like roof drains, downspouts, sump pumps, or improper storm drain connections. Infiltration occurs when groundwater seeps in through cracks, deteriorated pipes, faulty joints, or manhole defects. Excess I&I reduces sewer system capacity, increases treatment costs, and can lead to overflows and environmental impacts.

Yes, OpenFlows Sewer can perform integrated 1D/2D flood analysis. The software supports connecting 1D pipe network elements with 2D surface flow modeling, enabling analysis of surface flood depth, velocity, and hazards. 

OpenFlows Sewer can operate as a standalone application or by integrating into other platforms. This allows engineers to work in familiar software environments, including Esri ArcGIS Pro, AutoCAD, and MicroStation. The integration enables the use of existing geospatial datasets, CAD designs, and SCADA data to build and calibrate hydraulic models more efficiently. For 3D design, it also connects with other Bentley applications like OpenRoads Designer, OpenSite Designer, and OpenRail Designer.

OpenFlows Sewer is used by engineering professionals, including municipal engineers, consultants, and utility operators. These users are responsible for the planning, design, and operation of sanitary, storm, and combined sewer systems. The software helps them address challenges such as aging infrastructure, population growth, and increasingly stringent environmental regulations.

You can publish and share your hydraulic models within a collaborative digital twin environment for seamless, multi-disciplinary reviews. Additionally, Bentley Copilot, an AI assistant (available as technology preview) boosts daily productivity by letting you query model data and launch commands using plain language.