What is meant by the coefficient of discharge?

Definition of coefficient of discharge : the ratio of the actual discharge to the ideal discharge, assuming unit coefficients of contraction and velocity, equal to the product of these coefficients.

How do you calculate the coefficient of discharge?

It is defined as the ratio of the actual discharge from an orifice to the theoretical discharge from the orifice. It is denoted by. If Q is actual discharge and is the theoretical discharge then mathematically is given as = The value of varies from (0.61) to( 0.65). for general purpose the value of is taken as (0.6.).

What is the unit for coefficient of discharge?

Nomenclature

Symbol	Name	fps units
A	Flow area	ft2
BHP	Energy requirement	hp
Cd	Discharge coefficient (square edged hole=0.8, ragged hole=0.72, ductile failure=1.0)	decimal
ce	Erosion constant	ft/s

What is meant by coefficient of discharge of Venturimeter?

Coefficient of Discharge of Venturimeter (Cd) The coefficient of discharge for Venturimeter, Cd is defined as the ratio of the actual flow rate through the venturi meter tube to the theoretical flow rate.

Is coefficient of discharge constant?

Unlike the flow coefficient, discharge coefficient is dimensionless and almost constant value for any diameter of a single model. For the same high of fluid in the reservoir, higher is the discharge coefficient, higher is the flow rate, therefore the reservoir can be voided at shorter time.

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.

Is discharge coefficient a constant?

What is the maximum value of coefficient of discharge?

33 m/sec.

Why do we use coefficient of discharge?

The discharge coefficient is a dimensionless number used to characterise the flow and pressure loss behaviour of nozzles and orifices in fluid systems. Orifices and nozzles are typically used to deliberately reduce pressure, restrict flow or to measure flow rate.

What is the importance of coefficient of discharge?

The discharge coefficient is a dimensionless number used to characterise the flow and pressure loss behaviour of nozzles and orifices in fluid systems. Orifices and nozzles are typically used to deliberately reduce pressure, restrict flow or to measure flow rate.

What are the units of coefficient of discharge?

Symbols and units for discharge coefficient equations: A o =orifice area (m 2), A p =pipe area (m 2), d=orifice diameter (m), D=pipe inside diameter (m), P 1 -P 2 =differential pressure (N/m 2), P 1 -P 3 =non-recoverable pressure difference (N/m 2), Q=flow rate (m 3 /s), V o =velocity through orifice (m/s), V p =velocity in pipe (m/s), ρ=fluid mass density (kg/m 3).

What is discharge equation?

Discharge Equation Simplest description of flow in a channel is that the volume rate of flow (discharge) is constant, assuming no tributaries are encountered Volume balance gives us the Discharge or Continuity Equation: (2) for measurement procedure, see Stream Gauging notes

What is an example of discharge?

Electrostatic discharge ( ESD ) is the release of static electricity when two objects come into contact. Familiar examples of ESD include the shock we receive when we walk across a carpet and touch a metal doorknob and the static electricity we feel after drying clothes in a clothes dryer.

https://www.youtube.com/watch?v=NHlP1deSk4U