Multiphase(solid-liquid)model for pipes-elbows system

alixes · June 10, 2013, 19:51

I have a system which includes pipes and elbows. I will put nanoparticles in water. However I don't know how can I model this system with fluent ?
What I know?
1)I will analyze only pressure-drop effects with particles on flow.(dont need to use temperature)
2)I will use eularian multiphase model. (but how?)
3)Particle distribution should be random
4)Flow type is turbulent
grapro.png
I dont know how can I write UDF and some other things
And also which drag coefficient should be selected ?
If some one helps me I will be very happy
Have a good day

alixes · June 12, 2013, 18:10

I need quick help to complete my project please attention

oj.bulmer · June 14, 2013, 11:47

Why do you insist on Eulerian model? If your nanoparticles have smaller volume fraction (less than 0.1) you can use DPM for this and it will be a lot easier!

OJ

alixes · June 15, 2013, 19:00

Thank you for your answer. However I had completed my project with Eulerian method before you answered

shubham208011 · July 1, 2013, 04:11

Hi,

Can you please tell me what value of viscosity for solid phase you use?

June 10, 2013, 19:51	Multiphase(solid-liquid)model for pipes-elbows system	#1
alixes New Member Ali Özkara Join Date: Apr 2013 Posts: 3 Rep Power: 13	I have a system which includes pipes and elbows. I will put nanoparticles in water. However I don't know how can I model this system with fluent ? What I know? 1)I will analyze only pressure-drop effects with particles on flow.(dont need to use temperature) 2)I will use eularian multiphase model. (but how?) 3)Particle distribution should be random 4)Flow type is turbulent grapro.png I dont know how can I write UDF and some other things And also which drag coefficient should be selected ? If some one helps me I will be very happy Have a good day Last edited by alixes; June 11, 2013 at 09:03.

June 12, 2013, 18:10	help please !!!!	#2
alixes New Member Ali Özkara Join Date: Apr 2013 Posts: 3 Rep Power: 13	I need quick help to complete my project please attention

June 15, 2013, 19:00	thanx	#4
alixes New Member Ali Özkara Join Date: Apr 2013 Posts: 3 Rep Power: 13	Thank you for your answer. However I had completed my project with Eulerian method before you answered

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June 14, 2013, 11:47		#3
oj.bulmer Senior Member OJ Join Date: Apr 2012 Location: United Kindom Posts: 473 Rep Power: 20	Why do you insist on Eulerian model? If your nanoparticles have smaller volume fraction (less than 0.1) you can use DPM for this and it will be a lot easier! OJ

July 1, 2013, 04:11		#5
shubham208011 Member shubham Join Date: Mar 2009 Posts: 48 Rep Power: 17	Hi, Can you please tell me what value of viscosity for solid phase you use?