✅ ANSYS MESHING - Hexahedral Mesh - Intermediate Tutorial 3 - Part 2/2

[@ansys_cfd]

Ansys Meshing Tutorials: cfd.ninja/ansys-tutorials/ansys-meshing-tutorials/

[@anonymoustallguy]

THANK YOU SO MUCH!!! I'm learning how to use this program and I've been running in circles for a few hours (it's currently 1:00AM.) This video gave a very simple answer to my problem! Thank you so much!!

[@ansys_cfd]

I'm so glad, friend Best regards

[@lpen312]

Meshing is an art! You proved it! Such an amazing tutorial, thank you so much!

[@ansys_cfd]

cfd.ninja/Tutorials

[@parhamvatankhah2609]

Perfect tutorial, I would definitely suggest it for a beginner in ANSYS meshing.

[@ansys_cfd]

Thanks friend. Best regards

[@VLAHECO]

I should call to this mesh....THE PERFECT MESH...so cool

[@nileshkumar2034]

amazing. very helpful. u just solved my problem. thank u! can u show how to get the same patter for a plate without hole?

[@diliniherath1299]

Amazing work. Thank you so much.learned alot. Since this can be taken as a tire model, it would be great if you can do a video on aquaplaning. With multiphase flow and coupling work. Again thank you so much. Cheers !!

[@ansys_cfd]

Thank you so much! I will try to make a tutorial about that in the future. Best regards

[@andyevans2519]

Sir you are a hero

[@ansys_cfd]

Thanks friend. Best regards

[@joseluisMartin]

Gracias de nuevo, por este tutorial , realmente muy educativo

[@awalid3795]

Thanx alot for this great demonstration, can u make a video on how to mesh a single volume but in different slices. To mesh a every slice volume in a different way.

[@ansys_cfd]

Hi friend, Yes I can, but What you need exactly? Regards

[@awalid3795]

Hi.. what i have is complexe shaped volume so i need to mesh some places in that volume differently with other places in the same volume.. so let say i have a volume with A,B and C parts and these parts are combined. So how i could mesh each part with a differznt method and different amount of elements ...thanx alot for responding 😊

[@ansys_cfd]

Hi friend, Yes you can do it, but each part must be independent. I will try to do a tutorial about that soon. Best regards

[@awalid3795]

Okay, can't wait for it. U the best friend

[@Grzegorz_Brz]

just wonderful! Can you make a few videos on the decomposition of different objects?

[@ansys_cfd]

+Grzegorz Brzęczyszczykiewicz Hi my friend; please Can you give more details? Regards

[@Grzegorz_Brz]

+CFD.NINJA ANSYS prizm, airfoil, engine blade etc.

[@ansys_cfd]

+Grzegorz Brzęczyszczykiewicz hi my friend; Do you refer to this tool? kzbin.info/www/bejne/aYC8kJupfN2ih5o Regards

[@Grzegorz_Brz]

+CFD.NINJA ANSYS I'm more interested in is the construction of the mesh for these objects

[@ansys_cfd]

+Grzegorz Brzęczyszczykiewicz hi my friend I will try in the future. Regards

[@kaizhang6768]

beautiful mesh, thank you.

[@ansys_cfd]

Thanks my friend

[@anthonysweet1524]

Thank you for the videos, they're all very helpful. I have created a mesh using this methodology for an annular diffuser and tailpipe and I would like to refine the elements along the inner and outer wall (and choose the first element size). I have tried using inflation layers without any success. Do you have any suggestions?

[@ansys_cfd]

Hi friend, The most advisable thing is to use inflation, please check this video, maybe can be help. cfd.ninja/ansys-meshing-inflation-part-2/ Regards

[@kingterren]

this is what I needed

[@ansys_cfd]

Great friend Best regards

[@zdd5084]

The BGM is elegant hahaha!

[@enriquemunoz9894]

So helpful! Thank you for this great tutorial!

[@ansys_cfd]

You´re welcome friend. Best Regards

[@ayushgupta5061]

thanx for making these mesh videos

[@pawebargiel1136]

I perform meshing in a similar way. I wonder if you have met the problem of messed edges for more complex geometries. It occurs when several geometrical parameters are changed at once (within WB) and two neighbouring edges have switched Edge Sizing one with another, occassionally. I have found out it occurs for geometries generated due to the Slice tool. The avoidance of use of that tool is a painfull solution, however, the only I know so far.

[@ansys_cfd]

Hi my friend; Do you have any example about this? Regards

[@pawebargiel1136]

Please take a look at the picture below: drive.google.com/open?id=0B_AZxZ9ockQgRzFpcXhEWjhKdU0 At the first screen the edge sizing is unmessed (Edge Sizing 1 sizes edges A, and Edge Sizing 2 sizes edges B) At the second screen, after the change of the lenght of edges A and B, the sizing gets messed (Edge Sizing 1 now sizes edges A which are old Bs, and vice versa) Here, the number of divisions is calculated to achieve equally sized cells. Such method works with whole model except the parts, where edges are created due to plane cutting, as presented above.

[@ansys_cfd]

Hi my friend; You must use "element size" to not be calculating the number of divisions from Edge sizing and apply Behavior "Hard" this method works with the parts. Regards

[@pawebargiel1136]

Thank you. However, I do know this option and I am not using it intentionally. Firstly, to keep structural mesh between two faces of different edge size (eg. some conicial structures). Secondly, to avoid undesired rounding (eg. two edges of 7,5 mm with element size of 1 mm produces 8 divisions each, while another edge of 15 mm results in 15 divisions). Regards

[@ansys_cfd]

Hi my friend; This tool, like any other tool, should be used in a localized way. In computational fluid dynamics all are approximations from the meshing to the discretization of the Navier Stokes equation, you can use this tool and in the setup add double precision. Regards

[@gamarnath7]

beautiful mesh thank you very much

[@ansys_cfd]

You're welcome friend Best regards

[@omiddmt6565]

Thank you so much for the video. it helps a lot. I have a question though. for a simple pipe with a bend (e.g. a U-shape pipe) do I have to set these mesh sizing setting on 4 radii (perpendicular to one another) which I make at pipe's circle section? and more important, would this structured perfect mesh apply and sweep to bends without any problem and distortion of grids? I actually tried to use multizone mesh but it gives me errors and does't run at all. the error says "Error:Multizone found free block in swept body" Can you please help me with it?

[@thelionking2000cn]

Using R19.2 with this operations, it will turn out error and produce non-structual mesh when the Edge-sizing is applied to the outer edge of the ring. You can only choose the inner edge, the outcome is the same.

[@ansys_cfd]

Hi friend; I test with new Ansys versions (19.1, 19.2 and 19.3) and it works, You try Number of divisions option. Best regards

[@thelionking2000cn]

@@ansys_cfd thx, I'll see through, again.

[@thelionking2000cn]

I tried it again, and it turned out ok, perhaps it was something I missed last time.

[@kunalsinha5216]

What about the quality of the element... The mesh that was created whether it was of good quality?

[@mohannedmohammed6662]

Thanks for this video please how to do this line in body

[@ansys_cfd]

Hi my friend in this website you will find the full tutorial: cfd.ninja/ansys-meshing/ansys-meshing-hexahedral-mesh/ Regards

[@morganamva]

Top de verdade

[@atulwithsmile]

Lets say I have a semicircular shaped helical groove cut at the outer diameter. I also want boundary mesh on the grooves throughout the helical cut. Along with the circle having the O-grid. Any thoughts on how can I do that?

[@ahmedhossam6595]

How can you get the nodal coordinates of the mesh, like: Node1(x1,y,1,z1),Node2(x2,y2,z2),... in Ansys AIM 17.1?

[@heattransfer8003]

skewness has left the group

[@shimsw]

thank you!!

[@ansys_cfd]

You're welcome Best regards

[@felipeursoijui]

Good evening, congratulations to the videos. I would like to see if you have any models of centrifugal fan simulation? I am developing a project and need to elaborate simulation of the model. Thank you

[@amzertbouchra8804]

thank you so much really you helped me a lot

[@ansys_cfd]

You're welcome friend, subscribe each month more tutorials and videos. Best Regards

[@digvijayronge316]

Why multizone? Also I did the same thing in 2D annulus ; mesh was superb, but it says remove pinch control ,why?

[@ansys_cfd]

Hi my friend; here more information about Multizone: kzbin.info/www/bejne/rKm5c6l3g62oeJI www.sharcnet.ca/Software/Ansys/17.0/en-us/help/wb_msh/msh_mz.html Regards

[@pamstone8322]

Thank you for the tutorial. I did the same thing as you have done here but the resulted mesh is not the same. I've got this message: Prism elements have been generated during MultiZone meshing, a pure hexahedral mesh could not be generated. What is the reason?!!

[@ansys_cfd]

Hi my friend; Are you using the same geometry? check your edge sizing, they must the same points. Regards

[@NeoN575]

Hi, did u solve your problem? I have the same, dont know what to do

[@Somos_laviejaescuela]

Genial

[@joshuamills7633]

mate what was the purpose of the multizone method in this scenario?

[@ansys_cfd]

Hi friend, Use structured mesh. Regards

[@maisalmawla1195]

How can I mesh the curve pipe in same method ??

[@ansys_cfd]

Hi friend, I will maje a tutorial about that. Regards

[@alphacfd977]

Plz sir i need help ,,i have to reduce the elements without changing the number of nodes??

[@ansys_cfd]

Hi friend, The elements are directly proportional of the number of nodes, if you reduce one of them the other also reduce, maybe you can change the tetrahedral to hexahedral mesh and check the number of nodes. Regards

[@mattheushenriquemores5693]

Awsome

[@ansys_cfd]

Thank you Best regards

[@alphacfd977]

Hello , how can increase the mesh size to avoid the negative volume mesh?

[@ansys_cfd]

Hi friend, the negative volume depends on the geometry no the mesh, check again your geometry. Regards

[@ahsan952]

How to do it for a solid circular face?

[@ansys_cfd]

Hi my friend Do you any image?. Regards

[@marouamayar2605]

please how to refine mesh of wing-body junction (NACA AIRFOIL 0020)in ansys workbench??

[@ansys_cfd]

+maroua mayar hi my friend; maybe these tutorials can be help: cfd.ninja/tutorials/ansys-meshing/ansys-meshing-basic Regards

[@marouamayar2605]

+CFD.NINJA ANSYS thank you so much..

[@shubham-yy8tj]

how to create guidelines?

[@ansys_cfd]

Hi friend; Here the first part: cfd.ninja/ansys-meshing-hexahedral-mesh/ Regards

[@moneyman3528]

why is meshing used what is the use of meshing

[@ansys_cfd]

Hi my friend; The mesh is the previous step to simulate. When you use the mesh you are discretizing the equations for finite volume method or finite element method, i.e. you convert the differential equations to arithmetic equations. Regards

[@maisalmawla1195]

In this method why the quality mesh becomes bad ?

[@ansys_cfd]

Hi friend; The opposite, with this method the quality of the mesh improves. Regards