Hi,

Sorry I have been very tied up with a number of meetings this past month.

We have not yet progressed very far with our axisymmetric model. There is a model of this type in Semtex by Hugh Blackburn who we have close interactions with so you may wish to look at this code.

Your second question is a very good one but unfortunately I do not yet know how to answer it. We are trying to understand how our choice of SVV parameters relates to a cut-off of scales in the flow but currently we do not have a robust answer. 

Cheers,

Spencer.

On 5 Sep 2016, at 22:08, Manuel F. Mejía De Alba <manu2958@gmail.com> wrote:

Dear Nektar team, 

I trying to model the experiment developed by HIshida 1987. (Hishida, K., Maeda, M., 1987. Turbulent characteristics of gas–solids two-phase confined jet: effect of particle density. Jpn. J. Multiphase Flow 1, 56–69.) The problem is the Re number is near to 3E4, then the model is computationally expensive.  Here my questions: 

1. Is it possible to developed an axisymmetric model in Nektar++ ? I found this file 

http://prism.ac.uk/wp-content/uploads/2014/07/gabriele2014.pdf, on this said that G. Rocco is working or worked on it. May I implement the model based on his work ?

2. For this 3D model, the mesh requirements  are about 3E10, If I use a LES model with  SVVCutoffRatio=0.5N   and SVVDiffCoeff=0.5, how can I evaluate the new mesh requirements 

Thanks in advance for your comments,

---

Manuel Felipe Mejía De Alba.

_______________________________________________
Nektar-users mailing list
Nektar-users@imperial.ac.uk
https://mailman.ic.ac.uk/mailman/listinfo/nektar-users

Spencer  Sherwin

McLaren Racing/Royal Academy of Engineering Research Chair, 

Professor of Computational Fluid Mechanics,

Department of Aeronautics,

Imperial College London

South Kensington Campus

London SW7 2AZ

s.sherwin@imperial.ac.uk

+44 (0) 20 759 45052