What happens to the droplet size when the pressure of the nozzle is increased?

When the pressure of the nozzle is increased, the droplet size typically decreases. This phenomenon occurs because higher pressure forces the liquid through the nozzle with greater velocity, resulting in smaller droplets being formed. As the velocity increases, the breakup of the liquid stream is more intense, leading to a finer mist.

In practical applications, such as in spray technologies or atomizers, manipulating pressure allows for control over droplet size, which can be crucial for achieving desired outcomes in various processes, including coating, painting, and agricultural spray applications.

Understanding the relationship between nozzle pressure and droplet size is essential as it helps in optimizing the performance of systems that rely on spray formation for effective operation.