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

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The discussion centers on applying Bernoulli's Principle to a Venturi tube problem, specifically in determining flow rates. The user expresses confusion about how to approach the calculations without knowing specific variables like A1, V1, and A2. It is noted that A1 is three times A2, but the user is unsure how to utilize this information. The importance of using Bernoulli's equation alongside the principle of mass flow conservation is emphasized for solving the problem. Understanding these concepts is crucial for accurately calculating flow rates in the Venturi tube scenario.
heatherro92
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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!
 
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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.
 

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