Register to reply

Venturi Principle

by fonz
Tags: principle, venturi
Share this thread:
fonz
#1
Mar8-12, 12:33 PM
P: 79


Just simply, from the diagram above is p1=p3 and v1=v3?

Thanks
Dan
Phys.Org News Partner Physics news on Phys.org
Optimum inertial self-propulsion design for snowman-like nanorobot
The Quantum Cheshire Cat: Can neutrons be located at a different place than their own spin?
A transistor-like amplifier for single photons
MrRobotoToo
#2
Mar8-12, 05:13 PM
P: 24
If the viscosity is negligible, then yes.
cjl
#3
Mar8-12, 05:21 PM
P: 1,008
If the cross sectional areas are the same and the flow is inviscid, then yes. From the diagram, it isn't certain that A1 = A3 though.

rcgldr
#4
Mar8-12, 05:36 PM
HW Helper
P: 7,034
Venturi Principle

Quote Quote by cjl View Post
If the cross sectional areas are the same and the flow is inviscid, then yes.
If the flow is inviscid, then the inner flow at section 3 can't be determined. With zero viscosity, there's no reason that the flow from section 2 couldn't simply continue with the same diameter as the tube in section 2, flowing at v2 while the surrounding fluid in section 3 isn't moving at all, since there's no interaction between shear boundaries with an inviscid flow. The "average" net flow v3 should be the same as v1 since mass flow is constant, assuming section 3 diameter is the same as section 1 diameter.


Register to reply

Related Discussions
Venturi Tube Aerospace Engineering 1
Venturi tube Advanced Physics Homework 3
Bernoulli's Principle: Venturi Pipe Introductory Physics Homework 2
Bernoulli's principle with venturi effect General Physics 1
Venturi doubt General Physics 1