What is the relationship between nozzle pressure and flow rate?

The relationship between nozzle pressure and flow rate is determined by fluid dynamics principles. When nozzle pressure increases, it significantly influences the flow rate of the liquid passing through the nozzle.

Specifically, flow rate is directly proportional to the square of the nozzle pressure. This means that if you were to double the nozzle pressure, the flow rate would increase by a factor of four. This relationship arises from the Bernoulli equation, which demonstrates that the energy in a moving fluid is a function of its pressure and velocity. As pressure increases, the velocity of the fluid also increases, resulting in a higher flow rate.

Understanding this relationship is essential for effective pesticide application, as it helps in setting the right pressure to achieve desired flow rates for adequate coverage and efficacy in pest management. Appreciating the power of this relationship allows applicators to make informed adjustments based on the specific requirements of their tasks.