The SWMM3 or Extran3 Type 2 Pump Test File: A Historical Reference for Modern Hydraulic Modeling
This is a story about one inp file. It shows the continuity in stormwater modeling from 1980 to 2025 onwards. It is about Example 7 from the 1981 Extran Manual. This compact test case, … Read the rest
Autodesk Water Technologist for Storm Sewer and Flood | Expert in ICM InfoWorks ICM SWMM/Ruby | 18 Years at Innovyze/Autodesk | 52 Years with EPASWMM TAC for CIMM.ORG … Read the rest
When reviewing the simulation results, there are two sections TVD and Maxima.
When developing a model in InfoWorks ICM for a proposed condition, you often need to update ground model to include the proposed pond, roads, and housing units.
For smaller-scale projects, the process involves exporting the ground model as a grid, importing it into Civil3D, implementing the necessary changes, and … Read the rest
This is a story about two inp files. It shows the continuity in stormwater modeling from 1980 to 2025 onwards. It is about Extran1 (free outfall) and Extran 2 (fixed backwater with a tide gate) from the 1981 Extran Manual. This compact test case, born in the era of punch … Read the rest
Model initialization is a crucial, automated step in model preparation. While it typically operates behind the scenes without user intervention, it can sometimes fail or cause undesirable starting conditions in complex models. Understanding the process and the common workaround techniques can help resolve these issues.
To calculate and visualize parameters that are not reported as an attribute or results field in InfoWorks ICM, you can use SQL expression to create a custom field.
For example, freeboard is measured as the distance from the ground of the manhole to the water level inside. Defined as … Read the rest
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The Many Avenues of Ruby Help in the ICM Online Help File—Hint for AI Usage
1/ Ruby Introduction In the ICM Online Help File You can print any of these pages and use them with most of the AIs. Or copy and paste the
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Autodesk Water Technologist for Storm Sewer and Flood | Expert in ICM InfoWorks ICM SWMM/Ruby | 18 Years at Innovyze/Autodesk | 51 Years with EPASWMM
February 9, 2025
… Read the rest1/ Ruby
The SWMM3 Orifice Test File: A Historical Reference for Modern Hydraulic Modeling
This test file holds special historical significance in the development of stormwater modeling. Originally published in the 1981 EXTRAN 3 manual by CDM (now CDM Smith), it was specifically designed to validate orifice calculations in hydraulic networks. The … Read the rest
Autodesk Water Technologist for Storm Sewer and Flood | Expert in ICM InfoWorks ICM SWMM/Ruby | 18 Years at Innovyze/Autodesk | 51 Years with EPASWMM
September 9, … Read the rest
This Ruby script is designed for use within InfoWorks ICM to associate subcatchments with the nearest node with the lowest ground level among five nodes. It performs several tasks to facilitate this connection between subcatchments and nodes in … Read the rest
> Inlets in ICM InfoWorks and the Impact of Base Flow
The flow into a curb opening inlet is determined by multiplying the efficiency of the inlet by the upstream (u/s) flow in the channel connected to it. This means that the inlet captures a portion of the water flowing … Read the rest
