- #1

sinasahand

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- Homework Statement:
- bernoulli equation

- Relevant Equations:
- bernoulli equation and negetive pressure

In one pipeline with pressure P1 area A1 decrease to A2 we want to find P2 in area A2

we have bernoulli equation

p1+1/2 ρv^2=p2+1/2ρv^2

with low of conservation of mass A1V1=A2V2 that we can write V2=A1/A2 V1

if we keep in bernouli equation we have

P2=P1+1/2V2(1-(A1/A2)^2)

my quation is this if A2 goes to zero what will happen P2 will be negetive and -∞? How this will be correct

we have bernoulli equation

p1+1/2 ρv^2=p2+1/2ρv^2

with low of conservation of mass A1V1=A2V2 that we can write V2=A1/A2 V1

if we keep in bernouli equation we have

P2=P1+1/2V2(1-(A1/A2)^2)

my quation is this if A2 goes to zero what will happen P2 will be negetive and -∞? How this will be correct