Coupled Eulerian Lagrangian (CEL) - Fluid Structure Interaction (FSi), Part - 01 Theory & Basics
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- เผยแพร่เมื่อ 8 ก.พ. 2025
- In this video Coupled eulerian lagrangian (CEL) technique for fluid structure interaction (FSi) type of problems is explained. Comparison between Lagrangian & Eulerian techniques also discussed. An example of water sloshing is considered from abaqus benchmarks & results compared.
Abaqus Benchmark 1.7.1 - 130.149.89.49:2080/v2016/books/bmk/default.htm
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Thank you sir for such a nice video on CEL. Will you please upload a video on Friction stir welding using CEL?
You did such a great job with the explanation. New sub. I am very impressed. Thank you.
You must go through all 3 video of CEL.
Thanks for appreciating my work.
Thanks for your video.
It would also be interesting to see the task of continuous casting
Dear,
Two more videos are already uploaded in the same sequence (CEL). You may find interesting.
Dear,
Two more videos are already uploaded in the same sequence (CEL). You may find interesting.
This is a very simple and interesting example. I have reappeared and learn about this problem. I was wondering if I wanna do a similar problem considering clay-water mixtures instead of water, how can I create the material in Abaqus. Thank you so much for going through my query
Dear clay plasticity material model is available but you need to check it is compatible with CEL or not.. I'm not sure.
Thank you sir for this nice tutorial
very clearly explained, thank you!
Welcome dear.
Can this method be used for air-structure interaction problems, i.e., the effect of air velocity on the structure?
Hellow,
Please give a video on how to solve interaction error in abaqus for excessive distortion.
And also give a video for how to find out pasticity property for orthrotropic and isotropic material.
Dear,
Surely I'll upload more video related yo Interactions. Involving large deformation with Interaction.
Plasticity properties of materials can find by experimentation.
and also Does it matter if i define the Boundary Conditions in Initial Step? what does it make as a difference?
Dear,
Some predefined condition start before 1st step (i.e. in initial step). So it is my general habit to use BC from initial step.
Yes in many case (where you have predefined field BC) it impact the outcomes.
@@arsitech-ltd thank U very much
Thanks for your video. It's really helpful and interesting. I have a problem about viscosity of water that is not constant, it depend on some another parameters and I want to use user defined material to define it. If you know about that please share some information. Thank you so much.
Dear, thanks for appreciation.
Im just aware to UMAT as you. Once i learn surly I'll upload details.
@@arsitech-ltd Thank you so much for you reply.
In this above sample, could you show me how plot relationship between velocity of water and time.
Thanks for your interesting video. Does it matter if i define the gravity load in the initial step
Dear,
Gravity play crucial role here. But gravity applicable from 1st step only.
9:14 for water properties
Sir, have u thought of starting a course on abaqus software I really want to learn this software.Sir think about it if u can it will be really helpful.
Dear,
I'll start batch in July..for more plz be updated from telegram and Facebook group.
can i get the material parameters of ideal gas / air . if yes than pls reply need urgent
Dear,
You can use gas constant 287e6 and ambient pressure 0.101 in mm-ton-sec unit.
@@arsitech-ltd thanks a lot sir
Welcome dear
I think that it wouldn't be possible to do a modal analysis using this CEL technique because it would be necessary to use the Standard package, not the Explicit. So do you know where can I find information or a tutorial of modal analysis about the Fluid-Structure interaction? Including the sloshing and, if possible, in structures like cylindrical shells?
Dear,
As i know CEL only compatible with explicit. And modal analysis with explicit solver is completely new for me too.
I'll look at this point.
Please could you show how to produce velocity and time graph with direction V1, V3 of water domain. Thanks so much.
The measurements of sloshing is well defined by surge front. It is little complex and tricky here.
The surge front can be tracked in the Visualization module of Abaqus/CAE by investigating the Eulerian volume fraction for water in the elements along the bottom of the mesh. The tracking can be done manually or by creating X-Y data objects from output variable EVF_WATER and using mathematical operations to convert the volume fraction to an associated distance.
Thanks
hello sir could you please upload a video on droplet impact on membrane plate using cel method.I am not able to figure out how to perform the simulation
Dear,
Please try and let me know what problem u r facing. I'll try to help.
@@arsitech-ltd I saw a video on can drop using cel method and this one too
Can you please tell how do i model the droplet using cel will i have to use volume fraction there also.Iam a student new to this field so right now my knowledge is very limited in this domain
Dear,
I already uploaded 3 videos on CEL. to visualise water precisely you need to go with fine mesh or SPH technique.
@@arsitech-ltd hello sir I made the cel droplet impact on plate simulation. the simulation is running for some time after which iam getting an error the element contained in set has distorted excessively how to deal with it
Dear Dr. Gajendra,
Much appreciation for all the useful information presented.
can we say that the stress magnitude 1/2 are the vertical components of the water and lateral coefficients by analogy are Ka or Kp or K0 and in case of water its equal to one
in a way that the lateral pressure on the sides P=Ka*rho*g*h?
Thank you.
Dear,
I. Not understood about which Analogy you are talking.
@@arsitech-ltd When the Lateral Coeff 1 or 2 changes?
is that if the type of the fluid changes?
hlw sir I am Shivangi and I need ur help in the design of water tank which comprises of flaxible wall.....could u please help me in this
Yes dear,
How can i help you?
Thanks for your tutorial - it is very useful info. Could you please, make a video on SPH?
May be in future. Now Fsi, Interaction, meshing videos has to be complete first.
Hi sir, could you pls do a abaqus tutorial step by step for drop test of PET filled bottle from a height , will need to calculate impact strain or deformation and failure point. Could you pls let me know if I would require a recommended technique or modelling in its simulation. I would be grateful if could help me out. Thanks
Dear,
I explained the concepts of CEL technique. Also i uploaded 2 more CEL videos that will help you more.
You can try with ur problem and if any doubt...you can ask.. I'll try to suggest you.
For such bottle drop which filled with fluid CEL is highly recommend.
@@arsitech-ltd can u pls send me the link for the same. Thanks
I can't exactly locate it or if u could tell me the name of the video ur referring to would be helpful. Thanks
I suggest you to go with my channel - SimTech05. Lots of helpful videos u will find.
Video - on CEL
th-cam.com/video/hwYxicVkvpk/w-d-xo.html
th-cam.com/video/PJuqdi6TPAo/w-d-xo.html
Channel - SimTech05
th-cam.com/channels/42CigDW7FWWz4a5AB0b03A.html
Can you upload soil pile video using cel
Dear,
I don't have data for such. Belongs to mechanical.
@@arsitech-ltd ok sir
Thank you for the video. Can you please explain me what is the difference between ALE and CLE method?
Dear,
In ALE Element deformation take place as well material may flow within material..but not outside element.
In CEL element not deform but Material can flow outside element..
For more fo through Abaqus documentation and I'll also try to capture same in upcoming videos.
Is CEL possible on ANSYS. If yes please make a demo video .
Dear, I' m not Ansys user. However, CEL also avilable with Ansys Software.
@@arsitech-ltd modeling and simulation for friction stir Welding requires CEL for plunger simulation. User need have very high level of expertise on ANSYS apdl and ANSYS fluent udf function it's very though and difficult for normal collage student although there is online training materials , it's very hard to learn from pdf and apply in project.
Yes.
@@arsitech-ltd can you guide please what should I do.
In abaqus only.