Learning how to model a water distribution system is a complicated task. Understanding how to operate a modeling program is a minor part of the overall picture. To effectively use models, the engineer must be able to link knowledge of basic hydraulic theory and the mechanics of the program with that of the operation of real-world systems.
The purpose of this book is to provide a practical resource for engineers and modelers that goes well beyond being a how-to guide for typing data into a computer program. It contains straightforward answers to common questions related both to modeling and to distribution systems in general.
The scope of this text includes such topics as: - Definitions and industry standards - Model assembly and verification - Effective use of models as decision-support tools - Recent innovations in modeling
The method in which these issues are approached is designed to be readily accessible for immediate application by practicing engineers, while sufficiently comprehensive for student use.
Continuing Education and Problem Sets Included in this text are approximately 100 hydraulics and modeling problems to give students and professionals the opportunity to apply the material covered in each chapter. The accompanying CD-ROM in the back of the book contains an academic version of Haestad Methods’ WaterCAD, which can be used to solve many of the problems, as well as data files with much of the given information in the problems pre-entered.
Thomas M. Walski, Ph.D., P.E. Vice President of Engineering and Product Development Haestad Methods, Inc.
Thomas Walski, Ph.D., P.E.
Thomas M. Walski, Ph.D., P.E., is Vice President of Engineering for Haestad Methods, Inc. Over the past three decades, Dr. Walski has served as an expert witness; Research Civil Engineer for the U.S. Army Corps of Engineers; Engineer and Manager of Distribution Operation for the City of Austin, Texas; Executive Director of the Wyoming Valley Sanitary Authority; Associate Professor of Environmental Engineering at Wilkes University; and Engineering Manager for the Pennsylvania American Water Company. Over the past decade, he has also taught over 2,000 professionals in Haestad Methods’ IACET accredited water distribution modeling course.
A widely published expert on water distribution modeling, Dr. Walski has written several books including Analysis of Water Distribution Systems, Water Distribution Simulation and Sizing (with Johannes Gessler and John Sjostrom), and Water Distribution Systems - A Troubleshooting Manual (with Jim Male). He was also editor and primary author of Water Supply System Rehabilitation and was chair of the AWWA Fire Protection Committee which produced the latest version of Distribution Requirements for Fire Protection.
He has served on numerous professional committees and chaired several including the ASCE Water Resources Systems Committee, ASCE Environmental Engineering Publications Committee, ASCE Environmental Engineering Awards Committee, and the ASCE Water Supply Rehabilitation Task Committee.
Dr. Walski has written over 50 peer reviewed papers and made roughly 100 conference presentations. He is three-time winner of the best paper award in Distribution and Plant Operation for the Journal of the American Water Works Association, and is past editor of the Journal of Environmental Engineering. He received his M.S. and Ph.D. in Environmental and Water Resources Engineering from Vanderbilt University. He is a registered professional engineer in two states and is a certified water and wastewater plant operator.
Donald V. Chase, Ph.D., P.E.
Donald V. Chase, Ph.D., P.E., is Assistant Professor of Civil & Environmental Engineering at the University of Dayton and a recognized authority in numerical modeling and computer simulation. Prior to receiving his Ph.D. from the University of Kentucky he was employed as a civil engineer by the U. S. Army Corps of Engineers Waterways Experiment Station (WES) in Vicksburg, Mississippi.
Dr. Chase is currently working on projects related to the fate and transport of contaminated dredged disposal material, energy costs of water supply systems, surges in large water transmission mains, operational characteristics of variable speed pumps, hydraulic characteristics of culverts, and using Geographic Information Systems (GIS) in wellhead protection. Dr. Chase is a registered professional engineer and a member of ASCE and AWWA. He has held several positions in these organizations, including chair of the ASCE Environmental Engineering Division Water Supply Committee.
Dragan Savic, Ph.D., C.Eng.
Dragan Savic, Ph.D., C. Eng., is a chartered (professional) engineer with over fifteen years of research, teaching, and consulting experience in various water-engineering disciplines. His interests include developing and applying computer modeling and optimization techniques to civil engineering systems, with particular application to the operation and design of water distribution networks, hydraulic structures, hydropower generation, and environmental protection and management.
Dr. Savic jointly heads the Center for Water Systems at the University of Exeter in England and is a founding member of Optimal Solutions, a consultancy service that specializes in using optimization technologies to plan, design, and operate water systems. He has published over 100 research/professional papers and reports and is internationally recognized as a research leader in modeling and optimization of pipe networks.
