[Nek5000-users] Plane Jet - Geometry

[nek5000-users at lists.mcs.anl.gov]

Hi Amitvikram,


I'm guessing you can build this case with genbox, which allows you

to assemble several boxes together, each having varying resolution.

The boxes need to match in a conforming way, but this is not difficult.

You presumably could build a 2D mesh first, then extrude with n2to3.

Or you could build the 3D mesh directly with genbox.


In the span wise direction you can have periodicity, symmetry, or walls.


You can either use synthetic turbulence at an upstream inlet or you

can use a recycling BC that effectively gives you periodic channel flow

to generate incoming fully-developed turbulence.


Once generated, you probably want to apply a mesh smoother

before starting the simulations.  We've found that this can improve

accuracy and reduce time to solution.


If you want assistance, feel free to email me off-list.


hth,

Paul


________________________________
From: Nek5000-users <nek5000-users-bounces at lists.mcs.anl.gov> on behalf of nek5000-users at lists.mcs.anl.gov <nek5000-users at lists.mcs.anl.gov>
Sent: Monday, November 20, 2017 5:20:39 PM
To: nek5000-users at lists.mcs.anl.gov
Subject: [Nek5000-users] Plane Jet - Geometry

Hi all,

I'm trying to use do a LES study of a plane jet exhausting into a domain in nek5000. I'd like to know which geometry in the examples folder is the closest to my needs.
I suspect its the turbchannel one, but I'm not quite certain as to how to set the boundaries of the jet body as solid, within the domain.


Sincerely,
--

Amitvikram Dutta

Graduate Research Assistant

Fluid Mechanics Research Lab

University of Waterloo
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/nek5000-users/attachments/20171121/c55d539c/attachment.html>