slug flow simulation

mvee · June 3, 2009, 04:15

Sir,
I am working on air-water type two-phase flow. I want to capture slug flow using FLUENT. I have tried lot more. any how i cannot get it done.
For the slug flow i calculate the corresponding gas and liquid velocities from the available FLOW PATTERN MAP. These velocities are input conditions and outlet condition is pressure outlet. K-E model is used for turbulence. Energy is on.
I got converged result but that does not show slug pattern.
Will you please suggest missing link?
any reply from your side will help me.

thank you,

KOX · July 22, 2011, 06:55

If you somehow solved the problem (I can see it was long time ago) please let me know

zainab · August 7, 2012, 06:52

Hi kox
I working on slug modeling of gas liquid in horizontal pipes and I cannot get the true slug phases distribution, can you help me please?
thanks

KOX · August 7, 2012, 07:18

Hi zainab

I have simplified my model after going trough the literature so it's not a slug flow anymore. Currently I'm modelling the countercurrent (gas-liquid) flow through the absorber column with the packed bed inside using Eulerian approach.
So I'm not sure if I can somehow help you. However Im pleasd to answer some questions if you have any.

cheers

zainab · August 7, 2012, 07:27

Thank you kox for interest
I can not get the slug, where it must always being some level of water at the bottom of the horizontal pipe and the flow generally separated into regions with periodically being either water completely or air region above the level of water, do you understand me?, I get un uniform distribution it is not have any known region.

kbaker · August 9, 2012, 09:05

Hi Zainab in-order to get slugs you need to increase the velocity of gas for example if your current gas velocity is 5 m/s you need to double it or make it 14 m/s ? I hope this assist you and if you have further questions you can ask me here is my email address khalidb77@gmail.com?

kbaker

June 3, 2009, 04:15	slug flow simulation	#1
mvee Senior Member Vaze Join Date: Jun 2009 Posts: 172 Rep Power: 17	Sir, I am working on air-water type two-phase flow. I want to capture slug flow using FLUENT. I have tried lot more. any how i cannot get it done. For the slug flow i calculate the corresponding gas and liquid velocities from the available FLOW PATTERN MAP. These velocities are input conditions and outlet condition is pressure outlet. K-E model is used for turbulence. Energy is on. I got converged result but that does not show slug pattern. Will you please suggest missing link? any reply from your side will help me. thank you,

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July 22, 2011, 06:55		#2
KOX New Member PAWEŁ Join Date: Apr 2011 Location: Poland Posts: 5 Rep Power: 15	If you somehow solved the problem (I can see it was long time ago) please let me know

August 7, 2012, 06:52		#3
zainab New Member zainab Join Date: Mar 2012 Posts: 17 Rep Power: 14	Hi kox I working on slug modeling of gas liquid in horizontal pipes and I cannot get the true slug phases distribution, can you help me please? thanks

August 7, 2012, 07:18		#4
KOX New Member PAWEŁ Join Date: Apr 2011 Location: Poland Posts: 5 Rep Power: 15	Hi zainab I have simplified my model after going trough the literature so it's not a slug flow anymore. Currently I'm modelling the countercurrent (gas-liquid) flow through the absorber column with the packed bed inside using Eulerian approach. So I'm not sure if I can somehow help you. However Im pleasd to answer some questions if you have any. cheers

August 7, 2012, 07:27		#5
zainab New Member zainab Join Date: Mar 2012 Posts: 17 Rep Power: 14	Thank you kox for interest I can not get the slug, where it must always being some level of water at the bottom of the horizontal pipe and the flow generally separated into regions with periodically being either water completely or air region above the level of water, do you understand me?, I get un uniform distribution it is not have any known region.

August 9, 2012, 09:05		#6
kbaker Senior Member Khalid Baker Join Date: Mar 2009 Location: IRAQ Posts: 168 Rep Power: 17	Hi Zainab in-order to get slugs you need to increase the velocity of gas for example if your current gas velocity is 5 m/s you need to double it or make it 14 m/s ? I hope this assist you and if you have further questions you can ask me here is my email address khalidb77@gmail.com? kbaker