What is the effect on GPM when the pressure of the nozzle is doubled?

When the pressure at the nozzle is doubled, the gallons per minute (GPM) will indeed increase in a specific manner due to the relationship between pressure and flow rate in fluid dynamics. According to the principles governing nozzle flow, a change in pressure generally affects the flow rate.

Doubling the pressure typically leads to an increase in flow rate primarily due to the square root relationship defined by Bernoulli’s equation and the orifice equation, which suggests that flow rate is proportional to the square root of pressure. This means that increasing the pressure increases the energy imparted into the fluid, which generally results in a larger flow rate through the nozzle.

Therefore, if the pressure is doubled, the corresponding flow rate will increase, but the exact relationship is not directly linear. However, in practical applications, it is important to recognize that flow can often appear to double when pressure is significantly increased, which can lead to the selection of this option as a simplified approach to representing the relationship in this context.

Understanding how flow dynamics work in conjunction with pressure helps in predicting outcomes when adjustments are made to systems involving nozzles and fluid flow, confirming that the increase in GPM corresponds appropriately to the changes in pressure applied.