Is this expression for Mass Flowing Out of a Bottle correct?

  • #1
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Hello there, I am going to implement a numerical method to solve how much Mass of a fluid has gone out of an opened bottle. I am gonna get h(t) with some sensors but I am not sure if this expression for Mass gone out "M" is correct.
The area of the bottle at the up part. A1
The density of the fluid is D
The position Y of the fluid at the top is given by h(t)
33035538_813439768846708_3214039197144842240_n.jpg

What do you think?
Thanks a lot
 

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  • #2
20,844
4,543
Hello there, I am going to implement a numerical method to solve how much Mass of a fluid has gone out of an opened bottle. I am gonna get h(t) with some sensors but I am not sure if this expression for Mass gone out "M" is correct.
The area of the bottle at the up part. A1
The density of the fluid is D
The position Y of the fluid at the top is given by h(t)
View attachment 226013
What do you think?
Thanks a lot
Should’t It just be ##DA_1(h(0)-h(t))##?
 
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