Can Mass Fractions be Determined from Given Mass Flow Rates?

In summary, the conversation discusses a question about computing the bulk velocity for a fluid consisting of two chemical species with given mass flow rates at the inlet. The person is unsure how to do this without knowing the mass fractions, but it is suggested that they can be determined using the given mass flow rates.
  • #1
pyroknife
613
3

Homework Statement


I'm running a simulation and was given 2 mass flow rates (let's say m1_dot and m2_dot) for 2 chemical species at the inlet.

Homework Equations


mass flow rate = density*velocity * area

The Attempt at a Solution


I need to compute the bulk velocity for the fluid (consisting of the 2 species), so it needs to be some mass-weighted average that I'm computing, but how can I do this when I don't know the mass fractions?
 
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  • #2
Please explain why you think you don't know the mass fractions.
 
  • #3
Chestermiller said:
Please explain why you think you don't know the mass fractions.
Wait, can the mass fractions be determined from (m1_dot)/(m1_dot+m2_dot) and (m2_dot)/(m1_dot+m2_dot)?
FOr some reason, I didn't think that would work.
 
  • #4
pyroknife said:
Wait, can the mass fractions be determined from (m1_dot)/(m1_dot+m2_dot) and (m2_dot)/(m1_dot+m2_dot)?
FOr some reason, I didn't think that would work.
Sure.
 

1. What is bulk flow velocity in computing?

Bulk flow velocity in computing refers to the average velocity of a fluid or gas flowing through a system. In computing, this is often used to measure the speed at which data is transferred or processed.

2. How is bulk flow velocity calculated in computing?

In computing, bulk flow velocity is typically calculated by dividing the volume of data by the time it takes to transfer or process that data. This can also be expressed as a rate, such as megabytes per second.

3. What factors can affect bulk flow velocity in computing?

There are several factors that can affect bulk flow velocity in computing, including the type of medium used for data transfer, the processing power of the system, and any network or hardware limitations.

4. Why is it important to measure bulk flow velocity in computing?

Measuring bulk flow velocity in computing is important because it allows us to monitor and optimize the performance of data transfer and processing. By understanding the speed at which data is moving, we can identify any bottlenecks or areas for improvement in the system.

5. How can bulk flow velocity be improved in computing?

To improve bulk flow velocity in computing, several strategies can be employed. These include using faster and more efficient hardware, optimizing network connections, and implementing data compression techniques. Additionally, regularly monitoring and analyzing bulk flow velocity can help identify areas for improvement.

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