Finding mass flow rate and static pressure

[zewei1988]

Homework Statement

I was asked to find the mass flow rate and static pressure

Homework Equations

Bernoulli's equation

The Attempt at a Solution

I simply assumed that the area of the water jet hitting the vane is equals to the total area of water leaving the vane. I'm not sure if my assumption is true. From there I used Bernoulli's equation to find the speed of water leaving the nozzle, and hence the mass flow rate.

For the static pressure question, I felt that it should be p = rou*g*h + weight of vane/ area of nozzle.

I'm not sure if both are correct.

 

[KataKoniK]

Hi there,

It seems like you're on the right track with your approach to finding the mass flow rate and static pressure. However, I would recommend double checking your assumptions and equations to ensure accuracy.

For the mass flow rate, it is important to consider the continuity equation, which states that the mass flow rate into a control volume must be equal to the mass flow rate out of the control volume. This can help verify your assumption about the area of the water jet and the total area of water leaving the vane.

For the static pressure, your equation looks correct, but be sure to take into account any losses due to friction or other factors in the system.

I would also recommend checking with your instructor or consulting additional resources for guidance and verification on your solution. Keep up the good work!