April 2025

ICM, ICM_SWMM, Inside SWMM5, SWMM3, SWMM4, SWMM5

Extran1 and Extran2 from the Extran Manual for AI, GitHub, SWMM5, used in ICM SWMM and InfoWorks and SWMM5 3rd Party Tests

/ ICM, ICM_SWMM, Inside SWMM5, SWMM3, SWMM4, SWMM5

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

ICM, Mel Meng

InfoWorks ICM model initialization

/ ICM, Mel Meng

Introduction

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.

Why initialize a model?

… Read the rest
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