ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

A Riverflow-Water Quality Control Model

by Bernard B. Hsieh, Maryland Dep of Natural Resources, Annapolis, MD, USA,



Document Type: Proceeding Paper

Part of: Engineering Hydrology

Abstract:

In order to implement how regulated riverflow (control variable) impacts the salinity (output variable) under a tidal dynamic environment, a multiple input control system is developed. The subtidal heights and local wind stress are considered as two uncontrollable inputs. This controller, which consists of variable coefficients by means of a self-tuning scheme and recursive computation algorithms, is tested by the desired salinity patterns after calibrating proper stabilizing factors and pure delays. The low estimate error and variable and controllable forgetting factor show that this system can perform a dynamic output function. A simulation test indicates that this controller can respond to the sudden change of the output variable even when a constant desired level of salinity is provided.

Subject Headings: Water quality | Water pollution | Salt water | Control systems | Water resources | Water discharge | Tides

Services: Buy this book/Buy this article

 

Return to search