mesh about flow-3d

gaoyuan · May 14, 2009, 23:11

Dear sir,
As we know, the mesh of flow-3d is diffirent from fluent. cfx,star-cd.
The mesh of fluent need to be refined in near wall when consider the
turbulent model of low reynold number. I want to know whether the flow-3d also need to do. In addtion, I also want ot know why the flow-3d have
not k-w model. Since the k-w also is classics two equation model.

Best regards

yuan

gaoyuan · May 21, 2009, 00:36

No flow-3d man can answer this question?

Ghirghidov · May 21, 2009, 05:17

I am not sure that k-w model is better than k-e. Actually I am using RNG k-e model generally. It depends on the problem.

melissa · May 21, 2009, 17:36

Yes, in Flow-3D you need to refine the mesh near the wall for low reynolds number simulations.

fang · May 27, 2009, 23:14

why we need to refine the mesh near the wall for low reynolds number simulations?

melissa · June 1, 2009, 12:27

Hi~
To resolve the boundary layer one would need to refine the mesh.

MC

fang · June 3, 2009, 22:37

hi,melissa
thanks !

May 14, 2009, 23:11	mesh about flow-3d	#1
gaoyuan New Member Join Date: May 2009 Posts: 2 Rep Power: 0	Dear sir, As we know, the mesh of flow-3d is diffirent from fluent. cfx,star-cd. The mesh of fluent need to be refined in near wall when consider the turbulent model of low reynold number. I want to know whether the flow-3d also need to do. In addtion, I also want ot know why the flow-3d have not k-w model. Since the k-w also is classics two equation model. Best regards yuan

May 21, 2009, 00:36	a difficult question	#2
gaoyuan New Member Join Date: May 2009 Posts: 2 Rep Power: 0	No flow-3d man can answer this question?

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May 21, 2009, 05:17		#3
Ghirghidov Member Armen A. Ghirghidov Join Date: Mar 2009 Posts: 50 Rep Power: 17	I am not sure that k-w model is better than k-e. Actually I am using RNG k-e model generally. It depends on the problem.

May 21, 2009, 17:36		#4
melissa Member MC Join Date: Mar 2009 Posts: 56 Rep Power: 17	Yes, in Flow-3D you need to refine the mesh near the wall for low reynolds number simulations.

May 27, 2009, 23:14		#5
fang New Member linfangcai Join Date: May 2009 Posts: 9 Rep Power: 17	why we need to refine the mesh near the wall for low reynolds number simulations?

June 1, 2009, 12:27		#6
melissa Member MC Join Date: Mar 2009 Posts: 56 Rep Power: 17	Hi~ To resolve the boundary layer one would need to refine the mesh. MC

June 3, 2009, 22:37		#7
fang New Member linfangcai Join Date: May 2009 Posts: 9 Rep Power: 17	hi,melissa thanks !