# How do you calculate discharge in a pipe?

## How do you calculate discharge in a pipe?

Once you know the velocity of the gravity flow, you can also find the discharge, Q , by multiplying the cross-sectional area of the pipe by the flow speed: Q = A * v.

## What is discharge loss coefficient?

A more accurate method of determining the airflow through a louvre is the Discharge Loss Coefficient (CD value). This is the measurement of ease with which air will flow across a louvre.

What is the value of discharge coefficient?

The experimental results showed that the optimal value of the venturi tube discharge coefficient of about 0.983 was obtained.

### What is discharge coefficient formula?

To calculate discharge coefficient: Multiply the hydraulic head by the acceleration due to gravity. Multiply the resultant by 2 . Find the square root of the product. Multiply the resulting value by the area of cross-section to obtain the theoretical discharge for a fluid flow.

### Is discharge and flow rate same?

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.

What is discharge pipe?

discharge pipe means a pipe which conveys the discharge from a sanitary fixture to a drain, and includes a soil pipe, a waste pipe, a discharge stack, a branch discharge pipe or a fixture discharge pipe; Sample 1. Sample 2.

#### Can coefficient of discharge be greater than 1?

Plug in a coefficient for energy losses through turbulence and you have your formula. But you can see indeed that your coefficient can never be greater than one, because that would mean that you end up with more energy than you started with.

#### What is discharge coefficient Venturi?

The discharge coefficient of a Venturi meter is typically 0.985, but may be even higher if the convergent section is machined. Discharge coefficients for uncalibrated Venturi meters, together with corresponding uncertainties, are given in ISO 5167-1: 1991.

Is discharge coefficient constant?

Unlike the flow coefficient, discharge coefficient is dimensionless and almost constant value for any diameter of a single model. Manufacturers often provide the discharge coefficient of the valve in fully open position, maximum discharge.

## How discharge is measured?

Measuring Discharge Discharge is the volume of water moving down a waterway per unit of time. It is most commonly expressed in cubic feet per seconds or gallons per day. To calculate discharge, multiply the area of water in a channel cross section by the average velocity of water in that cross section.

## What is annual discharge?

3.9 Mean Annual Discharge and Discharge Variability. Page 1. In hydrology and water management, the term discharge refers to the volume of water which flows through a defined cross-section of a watercourse per unit of time. Depending on the size of the river or stream, the discharge is measured either in m3/s or l/s.

What is angle between the discharge pipe?

The angle between the discharge pipe and affiliable pipe must be at least 90°; The minimum installation depth of the pipeline must be 0.7 m in areas where vehicles may ride, and in other areas it must be 0,5 m. However, the outdoor drainage system should installed below the depth of soil freezing.

### How do you calculate the discharge coefficient?

– H = Head of water on the upstream side of the weir – h = Head of water on the downstream side of the weir – v = Velocity of the water on the downstream side of the weir (i.e., at B) – Cd= Coefficient of discharge and – L = Length of the weir

### What is co efficient of discharge?

Discharge Coefficient is the ratio of actual discharge through a nozzle or orifice to the theoretical discharge. Commonly known as coefficient of discharge, it is related to the flow and pressure loss through nozzles and the orifices in the fluid systems or fluid mechanics. It is denoted by “Cd” and is a dimensionless number.

What is the importance of coefficient of discharge?

Coefficient of discharge is stated as the ratio between the actual flow discharge and theoretical flow discharge. It is also referred to as the ratio of mass flow rate at nozzle’s discharge edge to the standard nozzle which enlarges an exact working fluid maintained at the similar initial conditions and pressures.. It has no dimensions and depends directly on the rate of flow and velocity of

#### What are the units of coefficient of discharge?

Problem. What is the “discharge coefficient” used in various places such as with the “Discharge Coefficient” and “Valve Characteristics Curve” Valve Type with a TCV node,or when using the

• Solution. The “Discharge coefficient” is also known as a “valve coefficient” or “Cv”,which is defined as: Flow/(Pressure Drop)^0.5.