What is nozzle in fluid mechanics?

A nozzle is a device designed to control the direction or characteristics of a fluid flow (especially to increase velocity) as it exits (or enters) an enclosed chamber or pipe. A nozzle is often a pipe or tube of varying cross sectional area, and it can be used to direct or modify the flow of a fluid (liquid or gas).

How do you design a nozzle?

A nozzle is a relatively simple device, just a specially shaped tube through which hot gases flow. Rockets typically use a fixed convergent section followed by a fixed divergent section for the design of the nozzle. This nozzle configuration is called a convergent-divergent, or CD, nozzle.

What are types of nozzle?


  • Nozzle.
  • The Nozzle Tip is one of the most important and least expensive part of a spraying system. Adjustable nozzle.
  • Double swirl spray nozzle.
  • Selecting a spray nozzle.
  • Hollow cone nozzles-Disc and core type.
  • Flat fan nozzles.
  • Floodjet nozzles.
  • Adjustable nozzles.

Does nozzle increase pressure?

Pressure is proportional to area, but in a nozzle it drops, which converts the same into velocity. But why does this happen? Pressure should be increasing but it is not.

Can a nozzle increase water pressure?

Common high-powered nozzles are fire hose styled with a long, thin tube. This concentrates the water and increases the pressure.

What is CFD analysis of viscous fluid mixing nozzle?

The goal of CFD analysis of viscous fluid mixing nozzle is to study Grid Patterns and Pathlines of mixing fluid of Dispensing Machine. Dispensing Machine used in a viscous fluid mixing to provide accurate blend ratios in producing the desired end-use product for automotive applications.

When do you use nozzles and orifices to measure flow?

Nozzles and orifices are often used to deliberately reduce pressure, restrict flow or to measure flow rate.

How is a wideflow nozzle based on the confined nozzle principle?

The WIDEFLOW gas atomizer based on the confined nozzle principle is illustrated in linear modification ( Fig. 4.26) [33]. This atomizer involves two chambers, a high-pressure chamber (autoclave) containing melting and pouring units, and a low-pressure atomization chamber divided by a linear Laval gas nozzle.

Who was the first scientist to invent the nozzle?

The earliest scientific worker in this field seems to have been Professor Hall, founder of the Metals Disintegrating Co. His patent in the late 1920s [30] represents a kind of close-coupled atomizer for aluminum atomization. The basic design shown in this patent is still in use and has yet to be improved in any radical manner.