nektar++_4p5.zip
Dear Professor Ding,

Yes, nektar supports the computation of natural convection problem with Boussinesq approximation. A BodyForce function is applied for the buoyancy term. This works perfectly with Nektar 4.5, but there is some issue in Nektar 5 for this function. 

I have attached a xml file, which solves the Rayleigh-Benard problem for Pr=0.71 and Ra=5000. Please see section 3.2 of Kumar and Potherat JFM 202for the details of validation (attached in this email).

I have attached the Nektar 4.5 version in this email. This version corresponds to "Commit b9f26592".

Let me know if you have any further queries.  

With regards
Abhishek 


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Abhishek Kumar

Assistant Professor (Research)

Centre for Fluid and Complex Systems

Coventry University, Coventry CV15FB

The United Kingdom

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On Tue, Aug 18, 2020 at 10:49 AM Sherwin, Spencer J <s.sherwin@imperial.ac.uk> wrote:
Dear Professor Ding,

There are some branches that have this type of capability. I am cc’ing Mohammad and Abhishek who have been using these types of features and may be able to answer more completely. 

Regards,
Spencer.

Spencer Sherwin FREng, FRAeS
Head of Aerodynamics Section,
Director of Research Computing Service,
Professor of Computational Fluid Mechanics,
Department of Aeronautics,
South Kensington Campus,
Imperial College London, SW7 2AZ,  UK
Phone: +44 (0)20 7594 5052

On 14 Aug 2020, at 07:01, Professor Ding、 <ztdepyahoo@163.com> wrote:

This email from ztdepyahoo@163.com originates from outside Imperial. Do not click on links and attachments unless you recognise the sender. If you trust the sender, add them to your safe senders list to disable email stamping for this address. 
 
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