Volume Flow Rate: Open vs Closed Valves

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The discussion revolves around the impact of valve positions on volume flow rate calculations. When a valve transitions from open to closed, it affects the flow rate through the system, potentially leading to different distributions at the outlets. Participants clarify that if there is 1 m³/s flowing into the system, it can be evenly distributed to multiple outlets, such as 0.5 m³/s each for two outlets. This understanding is crucial for accurately solving related problems in fluid dynamics. Overall, the conversation emphasizes the importance of correctly interpreting flow rates in systems with varying valve states.
Bolter
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Homework Statement
See below
Relevant Equations
volume flow rate = vA
Made an attempt at this Q but I'm unsure on how to do part c) or if I had even done part a) and b) right

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What difference does it make to the volume flow rate equation when the valve goes from open to closed?

Any help would be appreciated! Thanks
 
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How can there be 1m3/s flowing in and 1m3/s going out of both outlets?
 
haruspex said:
How can there be 1m3/s flowing in and 1m3/s going out of both outlets?

So do I assume that the inlet has 1 m^3/s flowing in
and both outlets at the end have 0.5 m^3/s flowing out
 
Bolter said:
So do I assume that the inlet has 1 m^3/s flowing in
and both outlets at the end have 0.5 m^3/s flowing out
For this system, yes.
 
The book claims the answer is that all the magnitudes are the same because "the gravitational force on the penguin is the same". I'm having trouble understanding this. I thought the buoyant force was equal to the weight of the fluid displaced. Weight depends on mass which depends on density. Therefore, due to the differing densities the buoyant force will be different in each case? Is this incorrect?

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