Postprint version. Published in Journal of Irrigation and Drainage Engineering, Volume 119, Issue 4, July 1, 1993, pages 631-636.
The definitive version is available at http://dx.doi.org/10.1061/(ASCE)0733-9437(1993)119:4(631).
Unsteady canal-simulation model usage requires serious investments of time and personnel. The reasons for deciding to invest in a model, as well as reasons not to invest, are discussed. For most cases, it is better to invest in the improvement of an existing model than the writing of a new model. Many excellent models are available, although very few can be considered user-friendly for the average design engineer. Unsteady flow-simulation models are not recommended for real-time control, but are key tools for the study of various control scenarios. Canal models can simulate an actual canal, but the user must input the necessary canal gate-control algorithms in order to study the effects of various types of automation and control. The user must also understand the basics of the system to be modeled and have the time and capability to determine if model results are reasonable and sound.
Bioresource and Agricultural Engineering