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Flow rate calculation for a water flowing in a pipe is different in a unstructured river flow. Pleae find the step by step process of measuring the flow rate of a run of river is as follows: Measuring the flow rate of water in a run-of-river scenario involves determining the volume of water passing through a given point per unit of time. Here’s a step-by-step process to manually measure the flow rate: Step 1: Select the Measurement Location Choose a straight, uniform stretch of the river to minimize variability. Ensure the river section is free of large obstructions (e.g., rocks, vegetation) that could disrupt measurements. Step 2: Measure the River Width Use a measuring tape to measure the river’s width at the selected location. Stretch the tape across the river, keeping it taut, and note the width in meters ( W W W ). Step 3: Measure the Depth at Intervals Divide the width into equal intervals (e.g., every 1 meter for a 10-meter-wide river). At each interval, use a measuring stick or...

Flow rate is defined as the volume of liquid move at certain amount of time. Calculating the flow rate for a run-of-river system manually (without sensors) involves using physical measurements and basic hydrodynamic principles. These ind of calculations are made for the small and mini hydro power plants which is running with no dam facility to store water. Here’s a straightforward way to estimate the flow rate: 1. Calculate Flow Rate Using the Velocity-Area Method This approach involves measuring the cross-sectional area of the river and the velocity of the flow. Step-by-Step Process: Step 1: Measure the Cross-Sectional Area of the River Width (W): Measure the width of the river using a measuring tape across the point where you want to measure flow. Depth (D): Take depth measurements at regular intervals across the river width, then find the average depth.           Average Depth (D) = Sum of depth measurements/  Number of...