Analog Computer - A Modern Tool in Water Pollution Controlby Lloyd L. Falk,
Serial Information: Journal of the Sanitary Engineering Division, 1962, Vol. 88, Issue 6, Pg. 31-60
Document Type: Journal Paper
Abstract: The applicability of digital and analog computer concepts is briefly compared. The modern analog computer is used in greater detail to solve some of the mathematical models applicable to the water pollution control field. This type of computer is especially suited for solutions of differential equations and problems in kinetics that, in some cases, are not presently solvable by known mathematical techniques. The basic functional units of an analog computer are described only in sufficient detail to provide a basic background for the major part of the paper wherein the use of the computer for solving water pollution problems is developed. Demonstration problems include the first-order differential single and two-stage biochemical oxygen demand equations, the oxygen sag equation and the second-order equation that describes pollutant distribution in a tidal estuary.
Subject Headings: Water pollution | Computing in civil engineering | Analogs | Computer models | Oxygen demand | Mathematical models | Hydrologic models
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