4.9 | 16 ratings Rate this file 195 downloads (last 30 days) File Size: 1.55 MB File ID: #10626

Navier-Stokes Solver (Navier2d)

04 Apr 2006 (Updated 09 May 2006)

No BSD License

A 2D, unstructured mesh Navier-Stokes solver

File Information
Description	The motion of incompressible fluids are simulated via a solution of the Navier-Stokes equations. General 2D domains and flow conditions are supported through the use of unstructured meshes. A GUI is used, allowing for easy problem specification. Setting up CFD simulations is non-trivial and a *.pdf readme file is included which contains some examples. Look at "readme.pdf" A windows and non-windows version is included, although the non-windows version is significantly slower (no mex files...). If you have the MATLAB compiler this can be fixed. Two example meshes are included, but you will need a mesh generator for general domains. My mesh generator can be downloaded at: http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=10307&objectType=FILE It should also be possible to use other mesh generators. THIS SOFTWARE IS DISTRIBUTED UNDER THE GNU GPL. UPDATE 22/04/2006 - Major improvements - A new module for thermal flows - A new module to calculate lift/drag forces - Better boundary conditions - Much lower memory overhead - Faster UPDATE 04/05/2006 - Faster! - Reduced runtime & memory use - Better outflow BC's Some people have started to use Navier2d in real work, including the investigation of high lift wings and oscillatory channel flows.
MATLAB release	MATLAB 6.5 (R13)
Zip File Content
Other Files	Navier2d/Additional Examples.doc, Navier2d/GNUlicense.txt, Navier2d/Not windows/build_operators.m, Navier2d/Not windows/cavity_benchmark.m, Navier2d/Not windows/copyright.m, Navier2d/Not windows/cylinder.mat, Navier2d/Not windows/data_structure.m, Navier2d/Not windows/Navier2d.m, Navier2d/Not windows/square.mat, Navier2d/Not windows/tvd_rk2.m, Navier2d/readme.pdf, Navier2d/Windows/build_operators.m, Navier2d/Windows/cavity_benchmark.m, Navier2d/Windows/copyright.m, Navier2d/Windows/cylinder.mat, Navier2d/Windows/data_structure.m, Navier2d/Windows/LUsubs.c, Navier2d/Windows/LUsubs.dll, Navier2d/Windows/Navier2d.m, Navier2d/Windows/smvp.c, Navier2d/Windows/smvp.dll, Navier2d/Windows/square.mat, Navier2d/Windows/tvd_rk2.m

Tags for This File
Everyone's Tags	cfd, chemistry, incompressible fluids, motion, navierstokes, physics, unstructured mesh
Tags I've Applied
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Comments and Ratings (18)
27 Apr 2006	Juan García
20 May 2006	Jack Ling
11 Sep 2006	Naveen Gopinathrao
28 Oct 2006	cheney Ho	i'm wondering what's "idx"? i couldnot find it in MATLAB OR YOUR OWN CODES. where % Take triangles with A>tol t = t(abs(d12(:,1).d13(:,2)-d12(:,2).d13(:,1))>tol,:); t = idx(t); %%%%%%%%%%%%%
23 Nov 2006	Todd Lowe	Excellent work--even more impressive to know this was for an undergrad thesis! As with any NS solver, use with care, but well done on the execution-end. Corresponsing mesh generator is fun as well.
31 Jan 2007	W. H. Brave	Perfect work, easy to use, efficient... Would be great if it supports non-constants BC's too in the future.
21 Feb 2007	Svante Hellzén	Good work, You mentioned to implement a boundary layer code too. I can suggest that you buy or borrow the D.C Wilocox book or the Tuncer Cebeci and Jean Coustex book: Modelling and computation of boundary layer flows. There you will find nice codes too study.
22 Mar 2007	Shidrati Ali
31 May 2007	B. J. Balakumar	Wonderful work!
10 Aug 2007	Georges Vael	Excellent work.
17 Oct 2007	B Davis	This is awesome. Thank you! And please keep updating this!
06 Nov 2007	alvise benetazzo	Great for an hydraulic engineer.
05 Mar 2008	Joey Liu	it's really unbelieveable of your masterpiece. thank you for share.
08 Oct 2008	Stephen KANG
22 Dec 2008	Shubham	ITS NOT WORKING!!!!!!!!!!!! PLEASE HELP... hey i copied all the .m files in my current directory, and could even run the demo, by typing 'meshdemo' in the command line. But, as soon as I type 'navier2d' or 'Navier2D' or 'Navier2d', it says ??? Undefined function or variable 'Navier2D'. Why is the file not running, please tell.. SHUBHAM SHARMA IIT R.
22 Dec 2008	Shubham
22 Dec 2008	Shubham	Hello everyone. Regarding the above post, it was my own fault that it was not working, it was me who somehow missed out copying on of the .m files provided, I apologise for that. And I am thankful for you, Mr. Darren Sir, for this wonderful thing. Best Regards, and wishes, Shubham Sharma.
29 Jun 2009	ricky martin

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Updates
24 Apr 2006	Major updates
04 May 2006	New Laplacian + outflow BC's
09 May 2006	small code changes

Tag Activity for this File
Tag	Applied By	Date/Time
chemistry	Darren Engwirda	22 Oct 2008 08:21:22
physics	Darren Engwirda	22 Oct 2008 08:21:22
unstructured mesh	Darren Engwirda	22 Oct 2008 08:21:22
navierstokes	Darren Engwirda	22 Oct 2008 08:21:22
cfd	Darren Engwirda	22 Oct 2008 08:21:22
incompressible fluids	Darren Engwirda	22 Oct 2008 08:21:22
motion	Darren Engwirda	22 Oct 2008 08:21:22

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