In the vast ocean of civil and environmental engineering literature, few subjects are as critical—and as challenging—as . Whether you are designing an irrigation canal for a rural farm, a stormwater drainage system for an urban metropolis, or a natural river restoration project, the principles of free-surface hydraulics are non-negotiable.

It does not seek to be an encyclopedic reference like Ven Te Chow, nor does it pretend to be a cutting-edge guide to computational hydraulics. Instead, it offers clarity, mathematical rigor, and immense practice value. For students in the Indian subcontinent and developing economies where the cost of educational materials is a significant factor, this book is an invaluable asset.

Madan Mohan Das made significant contributions to the field of open channel flow, including:

Authored by an expert with over four decades of teaching experience, the book is noted for its clarity and inclusion of solved examples and practice problems. It remains a staple in PHI Learning’s academic catalog, providing the technical depth required for senior-level undergraduate and graduate coursework in hydraulic engineering. Open Channel Flow - an overview | ScienceDirect Topics

: Extensive focus is placed on the hydraulic jump—a critical phenomenon for energy dissipation in structures like spillways.