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Low Flow in Pipes- posted in Ankur's blog

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Two-Phase Flow Regime


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#1 panagiotis

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Posted 09 May 2023 - 10:00 AM

Hi everyone!

I read somewhere that the stratified flow regime is preferred. What is the reason for this?

#2 breizh

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Posted 09 May 2023 - 07:42 PM

Hi,

Consider reading these papers, many more using your favorite search engine.

Note: I don't understand your query.

Breizh



#3 shvet1

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Posted 09 May 2023 - 11:25 PM

Consider your favorite search engine, e.g. a month ago

https://www.cheresou...se-line-sizing/



#4 panagiotis

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Posted 11 May 2023 - 03:50 PM

Thanks for providing these useful informatikn!

#5 panagiotis

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Posted 11 May 2023 - 03:52 PM

My question was about whether it is required to modify the pipe size to avoid any special flow regime for example mist flow? And if stratified flow regime is a preferable one?

Is my question clear now?

#6 Bobby Strain

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Posted 11 May 2023 - 06:29 PM

You only need to avoid slug flow where possible. Otherwise size piping to velocity or pressure drop criteria.

 

Bobby



#7 breizh

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Posted 11 May 2023 - 08:47 PM

Hi,

Another document to read.

I second Bobby:"avoid slug flow where possible".

Probably good to visualize the different patterns using your favorite search engine.

Breizh 



#8 panagiotis

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Posted 12 May 2023 - 11:42 AM

Bobby and Breizh,
Thank you so much for your answers!
I have very limited experience with 2 phase flows.
I will read through your document Breizh!

#9 Bobby Strain

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Posted 12 May 2023 - 04:14 PM

You can find software at my website to calculate two-phase pressure drop and flow regime.

 

Bobby



#10 breizh

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Posted 13 May 2023 - 08:01 AM

Hi,

Let you study this material about pressure drop. It helped me to develop spreadsheet.

Good luck
Breizh



#11 breizh

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Posted 13 May 2023 - 09:21 AM

Hi,

For those interested with fluid dynamic, single and multiple phases, you will find attached 2 books (free download).

Enjoy the reading.

Breizh 



#12 panagiotis

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Posted 13 May 2023 - 03:26 PM

Hi Bobby, could you please share your website with me?
Breizh, thank you for the documents.
I will be happy reading them.

#13 Bobby Strain

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Posted 13 May 2023 - 04:35 PM

Check my profile.

 

Bobby



#14 panagiotis

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Posted 14 May 2023 - 03:43 AM

I found it.
It is a nice one!!! ????

#15 Padmakar Katre

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Posted 09 June 2023 - 04:57 AM

Hi everyone!

I read somewhere that the stratified flow regime is preferred. What is the reason for this?

 

There is some context to this statement, stratified flow is preferred in a feed line to a phase separator, reason is easier separation. 






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