Taylor Bubble Rise

Sidique · August 4, 2019, 23:53

Hello
Please I need help with my simulation. I simulating the rise of Taylor bubble in vertical pipe. I patched the initial bubble shape in the tube. I am using the VOF method under laminar regime. My problem is, I am not seeing any visible movement in the bubble, rather it disintegrates at the nose and wake regions. How can I fix this? Your help would be appreciated. Thanks

esma · August 21, 2019, 03:33

have you set the gravity for the vertical axis? can you include an image of your patched model?

Sidique · August 26, 2019, 18:19

I am unable to attach an image, but after a number of iterations, the bubble starts to split into two along the axis. I will keep trying to attach the image, that will make things clearer. Thanks

rupak504 · September 14, 2019, 09:23

Quote:

Originally Posted by Sidique

I am unable to attach an image, but after a number of iterations, the bubble starts to split into two along the axis. I will keep trying to attach the image, that will make things clearer. Thanks

Improve the mesh quality

Sidique · September 15, 2019, 20:26

Thank you Lolita. It is better now.
Regards

August 4, 2019, 23:53	Taylor Bubble Rise	#1
Sidique New Member Sidique Gawusu Join Date: Oct 2017 Location: China-Nanjing Posts: 8 Rep Power: 8	Hello Please I need help with my simulation. I simulating the rise of Taylor bubble in vertical pipe. I patched the initial bubble shape in the tube. I am using the VOF method under laminar regime. My problem is, I am not seeing any visible movement in the bubble, rather it disintegrates at the nose and wake regions. How can I fix this? Your help would be appreciated. Thanks

August 21, 2019, 03:33		#2
esma Member Join Date: May 2016 Posts: 35 Rep Power: 9	have you set the gravity for the vertical axis? can you include an image of your patched model? Sidique likes this.

August 26, 2019, 18:19	Taylor bubble	#3
Sidique New Member Sidique Gawusu Join Date: Oct 2017 Location: China-Nanjing Posts: 8 Rep Power: 8	I am unable to attach an image, but after a number of iterations, the bubble starts to split into two along the axis. I will keep trying to attach the image, that will make things clearer. Thanks

September 15, 2019, 20:26	Thanks	#5
Sidique New Member Sidique Gawusu Join Date: Oct 2017 Location: China-Nanjing Posts: 8 Rep Power: 8	Thank you Lolita. It is better now. Regards

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Axial flow fan incorrect pressure rise	yambanshee	OpenFOAM Running, Solving & CFD	2	June 25, 2020 14:05
Closed volume pressure rise with temperature rise	vinayak4399	FLUENT	10	March 11, 2020 08:29
Rise of temperature in a thin film by electric potential	SofiG	System Analysis	0	January 21, 2019 04:41
Pressure Rise Error	emueller	CFX	0	May 5, 2009 11:08
Query on VOF for Bubble rise	Vamsi	Main CFD Forum	0	December 22, 2005 00:02