Construct2D Activity
COmputational fluid dyNamics STRUctured grid CreaTor for 2D airfoils
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Activity for Construct2D
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Mauro Minervino modified a comment on discussion General Discussion
Hi everyone, for those interested, here you can find a couple of simple C++ codes to convert C-type meshes generated by Construct2D into the native grid format used by Stanford University Unstructured flow solver (.su2) and to generate coarser meshes (for grid sensitivity studies) from a reference fine PLOT3D: https://github.com/m-minervino/P2D2SU2
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Hi everyone, for those interested, here you can find a couple of simple C++ codes to convert C-type meshes generated by Construct2D into the native grid format used by Stanford University Unstructured flow solver (.su2): https://github.com/m-minervino/P2D2SU2
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Stefano Segneri posted a comment on discussion General Discussion
Hello, I am having problems trying to use the Construct2D C-mesh in OpenFoam. I have already read all the threads about this topic but I am still having problems. This is the procedure I follow: - C-mesh generation with Construct2D - Conversion to .msh format using p3d2gmsh - I use GmshToFoam to convert the .msh mesh in OpenFoam format In this way in the file polyMesh/boundary there will be the following boundaries: - b8-SYMMETRY-Y --> FRONT - b9-SYMMETRY-Y --> BACK - b6-FARFIELD --> OUTLET - b7-FARFIELD...
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Mikkel Paulsen posted a comment on ticket #5
I have a similar issue trying to generate a mesh for a simple circle, and i get the same error message. I looked at the profile and it doesnt seen to have any loops, but it still wont work. Im very new to this, but i cant see why it wont work. I have attached the dat file im using if anyone would care to take a look. I would really appreciate any help i can get!
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Louis Krupp posted a comment on ticket #6
Another attempt at the StackExchange link: https://unix.stackexchange.com/questions/609693/feeding-a-command-using-file-redirection-or-pipe-doesnt-always-work/610101#610101
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Failure when compiled with optimization
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s1291 posted a comment on discussion General Discussion
Hello, Is it possible to change the center of the circle (O-grid mesh) when using the elliptic solver? I mean by default the center is at 0.5 of the chord. is it possible to control that? Thanks
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Marcelino posted a comment on discussion General Discussion
Hi, The same doubt here. How is possible to use TELE, TEPT or BUNC?
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KHE posted a comment on discussion General Discussion
Hello, On page 18 of the manual there appear to be additional commands that I cannot find in the program commands that would be beneficial to my application. "This can be done using the TELE and TEPT settings in Construct2D." I need to use TELE and TEPT Settings as suggested to reduce my skew angles. I did not see these commands listed in the manual's command listings as well and would very much like to know how to access them. Thank you for the help, and great program.
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Dan posted a comment on ticket #5
If they are small bumps like in the profile you posted, you will need to use the BUFF option to generate the grid instead of SMTH, because the smoothing procedure will not preserve them. Be aware that this will result in the number of grid points along the surface being equal to the number of points in the airfoil file, which in the case you posted was huge (2000+ or something). So you may need to do some manual adjustment of the input file to remove unneeded points. In general, though, it will be...
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KOY posted a comment on ticket #5
Hi Dan, Thank you for your response, it is now working. as you can see, I am simulating a rough airfoil with some concave regions. Do you have any ideas what is the best way to do that? I have read the user manual and read about ELLP solver and FUNI values, Is there any other ideas other than that? Best Regards,
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Bunching of farfield cells in O-type grids
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Loading of saved settings data
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NaN error when SMTH the profile
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Have you looked at that profile? It's no wonder it doesn't work. It's got multiple loops and self-intersections. Construct2D is only meant for use with single profiles forming a loop. I've attached an image of your profile.
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NaN error when SMTH the profile
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With the hyperbolic solver, there is the FUNI option that affects the farfield spacing. Unfortunately, it's not always possible to really improve the wake spacing with this parameter. However, if you switch to the elliptic solver, there is the FDST setting under SOPT. If you set this to a number greater than 1, it will reduce the make the resolution finer at the farfield in the front and back of the domain. There is also always the potential to use a C-grid instead of an O-grid to improve the wake...
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With the hyperbolic solver, there is the FUNI option that affects the farfield spacing. Unfortunately, it's not always possible to really improve the wake spacing with this parameter. However, if you switch to the elliptic solver, there is the FDST setting under SOPT. If you set this to a number greater than 1, it will reduce the make the resolution finer at the farfield in the front and back of the domain.
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Hi, if you want Construct2d to read the saved settings when it runs the next time, save the file with the name grid_options.in.
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Lennart created ticket #4
Bunching of farfield cells in O-type grids
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Loading of saved settings data
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Construct2D released /Construct2D_2.1.4.zip
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Hi Simone, The reason is that Construct2D no longer uses the XFoil spacing routine...
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Simone Camarri posted a comment on discussion General Discussion
Hello, I am writing for the following question: I need to refine the node spacing...
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Mohd Hanif Bin Mohamad posted a comment on discussion General Discussion
Hello, can you explain on how to rotate the points in.dat file? T.
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what do you mean by rotating the point in .dat file? can u show the example?
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Mikko posted a comment on discussion General Discussion
Hi, You can rotate the points in .dat file before launching construct2D. Regards,...
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tario posted a comment on discussion General Discussion
I need meshes with a y+=1 or smaller and I set ypls to values < 1 but the checks...
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here is the fix: 1: open mesh.p3d file in GMSH and click save mesh, then close GMSH...
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Hello, is there a way to change the angle of attack? "Rotating" an O-mesh in OpenFoam...
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Hello, I've created a number of O-meshes for the DU91-W2-250 and the NACA0012 airfoil...
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Everything removed! Get code from the "Files" link
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REJISH modified a comment on discussion General Discussion
thanks for your comment...I am looking for the procedure to break the boundary patch...
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thanks for your comment...I am searching for break the boundary patch could you please...
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Rajib Roy posted a comment on discussion General Discussion
Hi REJISH, C mesh: Applying autoPatch should work O mesh: After AutoPatch, need to...
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Hello Rejish, Sample boundary conditions could be found at tutorial/incompressib...
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hi Rajib Roy.....Can you please tell me how do you give boundary conditions to your...
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Hi I used this meshing tool for creating mesh but how can I give boundary condtions...
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I have generated a NACA 4412 profile of which the polynomial equation is corrected...
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I have generated a NACA 4412 profile of which the poly nimial equation is corrected...
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status: open --> wont-fix
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Request: pure command line interface
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Please see my previous post. You can run this in batch mode by creating a file with...
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Uninitialized boolean leads to infinite loop
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status: open --> closed
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Hey Jason, Thanks for noticing this bug. It has been fixed in the most recent version...
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