Fluid Mechanics Venturi meter/manometer

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SUMMARY

The discussion centers on the calculation of flow rate using a Venturi meter and manometer principles. The user initially calculated a flow rate of 3.55 x 10^-3 m³/s, while the expected answer was 1.29 x 10^-3 m³/s. Key equations referenced include the continuity equation (Q = v1A1 = v2A2) and Bernoulli's equation (P = P0 + ρgh). The user seeks clarification on their calculations and the validity of the provided answer.

PREREQUISITES
  • Understanding of fluid dynamics principles, specifically the continuity equation.
  • Familiarity with Bernoulli's equation and its applications.
  • Knowledge of manometer operation and pressure measurement techniques.
  • Basic algebra and unit conversion skills for fluid flow calculations.
NEXT STEPS
  • Review the derivation and application of the continuity equation in fluid mechanics.
  • Study Bernoulli's equation in detail, focusing on its assumptions and limitations.
  • Learn about the operation and calibration of manometers for accurate pressure measurement.
  • Practice solving flow rate problems using Venturi meters with various fluid properties.
USEFUL FOR

Students studying fluid mechanics, engineers working with fluid systems, and anyone involved in flow measurement and analysis using Venturi meters and manometers.

patep023
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Homework Statement


Question: http://i.imgur.com/aoXUDP1.png

Homework Equations



Q=v1A1=v2A2
Bernoullis Equation
P=P0 + ρgh

The Attempt at a Solution


I have got an answer of 3.55*10^-3 m^3 /s. The answer i have been told is 1.29 x 10-3 m3s-1. I am not sure if i am wrong or the answer given to me is wrong. would highly appreciate it if someone could work out the answer and check if I am wrong or not.
Here is my attempt of the question but it is all over the place. http://i.imgur.com/d4anv1Q.jpg
 
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It's difficult to follow your hand writing but can you explain explicitly what you are doing in line 2 of your calcs?
 
I think the answer given to me was incorrect for that one, i did a similar question and got the right answer for it ;D
I was writing down another equation in respect to the manometer so i can cancel stuff around
 

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