تعيين دبي رودخانه با تزريق ثابت استفاده از داده هاي آزمايشگاهي

Equation for Measuring River Discharge with Constant Rate Injection

In river with non-regular cross sectional area or with turbulent flow, it is not possible to measure flow by usual methods. The tracing method is used in such circumstances. This method is applied in two ways: constant rate injection for small streams and slug injection for greater flows. These methods are based on tracer dilution in a stream. In this study a new equation is presented for discharge determination using constant rate injection in the laboratory and nonlinear regressions. Sodium chloride is used in this experiment as a tracer. This method is double-checked in the field. Experimental and field results confirm accuracy of the new equation.