What happens if a negative pressure gradient is applied to a diffuser?

  • #1
ahog
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A diffuser normally decreases the velocity by increasing the area. With assumption of an incrompressible flow, according to Bernoulli, the static pressure increases. What happens if one "forces" the flow through a diffuser by applying a bigger pressure on the inlet than on the outlet?
 
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  • #2
Welcome to PF.

You have hypothesised a paradoxical impossibility.
The flow will increase until the output pressure rises to the point where Bernoulli is satisfied.
 
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  • #3
Baluncore said:
Welcome to PF.

You have hypothesised a paradoxical impossibility.
The flow will increase until the output pressure rises to the point where Bernoulli is satisfied.
Thank you very much, i was really driving myself crazy...😂
 

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