- #1

Hauzen

- 10

- 4

Hi.

Since I've been studying fluid mechanics, I've been asking a lot of questions

Thank you all for your help!

I suddenly have a problem that I want to think about while studying today.

I would like to know the change of air volume according to the pipe shape as shown in the picture below

Condition 1) Fan is installed below and air is flowing downward.

Condition 2) The cross-sectional area of the two pipes is the same as A and the narrow areas are the same as B.

Condition 3) Compared to Photo 1, Photo 2 has a longer narrow diameter.

Condition 4) There is a pipe friction coefficient.

Condition 5) Q2=Q4

Q1,Q3 How do I list them in order of the most air volume?

I think it will be easier to understand if you use a formula to prove it, so please help me

Since I've been studying fluid mechanics, I've been asking a lot of questions

Thank you all for your help!

I suddenly have a problem that I want to think about while studying today.

I would like to know the change of air volume according to the pipe shape as shown in the picture below

Condition 1) Fan is installed below and air is flowing downward.

Condition 2) The cross-sectional area of the two pipes is the same as A and the narrow areas are the same as B.

Condition 3) Compared to Photo 1, Photo 2 has a longer narrow diameter.

Condition 4) There is a pipe friction coefficient.

Condition 5) Q2=Q4

Q1,Q3 How do I list them in order of the most air volume?

I think it will be easier to understand if you use a formula to prove it, so please help me

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