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nozzle

Computes the rate of flow of a fluid through a nozzle or orrifice.

Controller: CodeCogs

Contents

Interface
Nozzle
Page Comments

Private project under development, to help contact the author:

Interface

C++

Excel

Nozzle

doublenozzle(	double	`discharge`
	double	`area`
	double	`head_loss`
	bool	`approach_velocity` `= false`
	double	`diameter0` `= 0`
	double	`diameter1` `= 1`	)[inline]

By neglecting the velocity of approach, the rate of flow $\inline q$ of a fluid through a nozzle or orrifice is expressed by the following formula:

$q = C_d A \sqrt{2 g h_L}$

(2)

where $\inline C_d$ is the discharge coefficient of the orrifice/nozzle, $\inline A$ is the cross sectional area, $\inline h_L$ is the loss of static pressure head due to fluid flow and $\inline g$ is the acceleration of gravity, 32.2 ft/s.

Taking velocity of approach into account, a correcting factor will be included in the previous equation:

$q = C A \sqrt{2 g h_L}$

(3)

where $\inline C$ is the flow coefficient given by:

$C = \frac{C_d}{\sqrt{1 - \left(\frac{d_0}{d_1}\right)^4}}.$

(4)

The variables $\inline d_0$ and $\inline d_1$ are the two corresponding internal diameters.

Example 1

#include <stdio.h>
#include <codecogs/engineering/fluids/imperial/nozzle.h>
 
int main()
{
  double 
  flow1 = Engineering::Fluids::Imperial::nozzle
  (0.377, 0.6, 1.23),
  flow2 = Engineering::Fluids::Imperial::nozzle
  (0.38, 0.5, 0.1, true, 0.3, 0.9);
  printf("Flow through nozzle 1 = %.12lf ft^3/s\n", flow1);
  printf("Flow through nozzle 2 = %.12lf ft^3/s\n", flow2);
 
  return 0;
}

Output

Flow through nozzle 1 = 2.013205415570 ft^3/s
Flow through nozzle 2 = 0.485170124802 ft^3/s

References

The Engineering Division, Crane Co., "Flow of fluids through valves, fittings, and pipe", Chicago, 1957

Parameters

discharge	the discharge coefficient
area	cross sectional area of pipe or orifice (ft)
head_loss	loss of static pressure head due to fluid flow (ft)
approach_velocity	Default value = false
diameter0	Default value = 0
diameter1	Default value = 1

Returns

The rate of flow through the nozzle or orrifice (ft/s).

Authors

Lucian Bentea (July 2006)

Source Code

This module is private, for owner's use only.

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