# Discharge

## Problem 06 - Bernoulli's Energy Theorem

**Problem 6**

As shown in Figure 4-03, the smaller pipe is cut off a short distance past the reducer so that the jet springs free into the air. Compute the pressure at 1 if Q = 5 cfs of water. D_{1} = 12 inches and D_{2} = 4 inches. Assume that the jet has the diameter D_{2}, that the pressure in the jet is atmospheric and that the loss of head from point 1 to point 2 is 5 ft of water.

- Read more about Problem 06 - Bernoulli's Energy Theorem
- Log in or register to post comments
- 11491 reads

## Problem 01 - Bernoulli's Energy Theorem

- Read more about Problem 01 - Bernoulli's Energy Theorem
- Log in or register to post comments
- 20212 reads

## 01 How to calculate the discharge and the velocity of flow

**Problem 1**

Compute the discharge of water through 75 mm pipe if the mean velocity is 2.5 m/sec.

**Problem 2**

The discharge of air through a 600-mm pipe is 4 m^{3}/sec. Compute the mean velocity in m/sec.

**Problem 3**

A pipe line consists of successive lengths of 380-mm, 300-mm, and 250-mm pipe. With a continuous flow through the line of 250 Lit/sec of water, compute the mean velocity in each size of pipe.

- Read more about 01 How to calculate the discharge and the velocity of flow
- Log in or register to post comments
- 25217 reads

## Discharge or Flow Rate

**Discharge (also called flow rate)**

The amount of fluid passing a section of a stream in unit time is called the discharge. If *v* is the mean velocity and *A* is the cross sectional area, the discharge *Q* is defined by *Q* = *Av* which is known as volume flow rate. Discharge is also expressed as mass flow rate and weight flow rate.

Mass flow rate, $M = \rho Q$

Weight flow rate, $W = \gamma Q$

- Read more about Discharge or Flow Rate
- Log in or register to post comments
- 69591 reads

## Time Rates | Applications

**Time Rates**

If a quantity x is a function of time t, the time rate of change of x is given by dx/dt.

When two or more quantities, all functions of t, are related by an equation, the relation between their rates of change may be obtained by differentiating both sides of the equation with respect to t.

- Read more about Time Rates | Applications
- Log in or register to post comments
- 110290 reads