Bernoulli's Principle with a Venturi Tube, find flow rate

Click For Summary

Homework Help Overview

The discussion revolves around applying Bernoulli's principle in the context of a Venturi tube to determine flow rates. Participants express confusion regarding the relationships between areas and velocities in the tube, as well as the application of Bernoulli's equation.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants discuss the need for understanding the relationship between different areas (A1 and A2) and velocities (V1 and V2) in the context of the problem. There is also mention of needing additional equations to relate mass flow and the application of Bernoulli's equation.

Discussion Status

The discussion is ongoing, with participants questioning the application of Bernoulli's equation and the need for additional equations to solve the problem. Some guidance has been offered regarding the need for a mass flow equation, but no consensus has been reached.

Contextual Notes

Participants are working under the constraints of a homework assignment, which may limit the information they can use or the methods they can apply. There is uncertainty regarding the values of A1, A2, V1, and V2, which are critical to solving the problem.

heatherro92
Messages
7
Reaction score
0
1zlxbi0.png


So that's the question and I'm stuck on Part b. I don't even know how to approach it. I know A1= 3A2 but I don't know A1 and I need V2 and I don't know V1 or A2. I'm just confused as to how to do this. Please help!
 
Physics news on Phys.org
Are you aware of Bernoulli's equation? You mention Bernoulli in the title but don't quote the equation.
 
I understand the equation ρgy1+ (1/2)v1^2 + P1 =ρgy2+ (1/2)v2^2 + P2 but I do not understand how to apply it to this
 
heatherro92 said:
I understand the equation ρgy1+ (1/2)v1^2 + P1 =ρgy2+ (1/2)v2^2 + P2 but I do not understand how to apply it to this
You need one more equation, based on the fact that mass flow within all parts of the venturi tube is constant.
 

Similar threads

Bernoulli vs real life experiment
  • · Replies 16 ·
Replies
16
Views
3K
Bernoulli equation / fluid flow / finding height
  • · Replies 6 ·
Replies
6
Views
3K
What's the pressure long before the fluid exits a pipe?
  • · Replies 13 ·
Replies
13
Views
2K
Bernoulli equation and negative pressure
  • · Replies 3 ·
Replies
3
Views
3K
Formula derivation connecting vertical water flowrate & horizontal distance moved by a suspended sphere
  • · Replies 207 ·
7
Replies
207
Views
10K
Can you please explain Bernoulli's equation?
  • · Replies 61 ·
3
Replies
61
Views
5K
What is the relationship between pressure and flow rate?
  • · Replies 8 ·
Replies
8
Views
4K
How Does Bernoulli's Principle Apply to Varying Pipe Diameters and Water Flow?
  • · Replies 3 ·
Replies
3
Views
2K
Understanding the Venturi Effect: Solving Equations for Ideal Liquid Flow
  • · Replies 2 ·
Replies
2
Views
2K
Bernoulli’s Equation and External Forces
  • · Replies 4 ·
Replies
4
Views
2K