Ansys fluent dem

huangdf · November 16, 2018, 02:50

I am new to model DEM using ANSYS Fluent.

I started with a simple model - a cylinder is filled full with a fluid (density is 1963kg/m^3), the particles (density is 1750kg/m^3) are injected from the bottom of the cylinder.

I expected to see the particles are rising due to buoyancy forces. However, the particles are stick together, I didn't see the affect of buoyancy forces.

Please advise.

Thanks,

vesp · November 16, 2018, 03:03

the first question to find out is: is buoyancy included in the model?

huangdf · November 16, 2018, 13:07

Yes, buoyancy is included in the model,

Thanks

November 16, 2018, 02:50	Ansys fluent dem	#1
huangdf New Member D Huang Join Date: Jul 2018 Posts: 13 Rep Power: 8	I am new to model DEM using ANSYS Fluent. I started with a simple model - a cylinder is filled full with a fluid (density is 1963kg/m^3), the particles (density is 1750kg/m^3) are injected from the bottom of the cylinder. I expected to see the particles are rising due to buoyancy forces. However, the particles are stick together, I didn't see the affect of buoyancy forces. Please advise. Thanks,

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November 16, 2018, 03:03		#2
vesp Member Join Date: Aug 2018 Posts: 77 Rep Power: 8	the first question to find out is: is buoyancy included in the model?

November 16, 2018, 13:07		#3
huangdf New Member D Huang Join Date: Jul 2018 Posts: 13 Rep Power: 8	Yes, buoyancy is included in the model, Thanks