Vapor Liquid Flow in Vertical Pipes

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processengineer
Posts: 1
Joined: Mon Sep 13, 2010 4:09 am

Vapor Liquid Flow in Vertical Pipes

Post by processengineer »

There is a known criteria for self venting flow when liquid is flowing downwards and vapor is able to flow upwards reverse to liquid flow. The Froude number, v/sqrt(gD) should be less than 0.3. I am interested in knowing the opposite limit: at what vapor rate is liquid unable to flow downwards.
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amardeep
Posts: 12
Joined: Sat Sep 03, 2011 6:44 am

Re: Vapor Liquid Flow in Vertical Pipes

Post by amardeep »

Hi,
You question is good. Can you please explain us the realation between Froude number(Fr<0.3) and liquid is flowing downwards and vapor is able to flow upwards reverse to liquid flow
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