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.
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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

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