## Solution for problem 21P Chapter 5

# Consider a river flowing toward a lake at an average speed

Fluid Mechanics | 2nd Edition

Problem 21P

Consider a river flowing toward a lake at an average speed of4 m/s at a rate of 500 m3/s at a location70 m above the lake surface. Determine the total mechanical energy of the river water per unit mass and the power generation potential of the entire river at that location.

**Accepted Solution**

Solution 21P

Step 1

In this problem, a river is flowing to a lake at a particular speed from a particular height. The rate of water flowing is provided. We have to calculate the total mechanical energy of the river and the power generation potential of the entire river.

Provided data,

Speed of the river,

Flow rate of the river,

Height of the river flowing from the lake surface,

We know the density of freshwater,

###### Chapter 5, Problem 21P is Solved

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Consider a river flowing toward a lake at an average speed