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ANSYS Fluent | Analysis of Two Concentric Rotating Cylinders | Moving Wall Boundary Condition | CFD
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- เผยแพร่เมื่อ 30 ก.ค. 2024
- There are two concentric cylinders, which are rotating in opposite directions at the same magnitude of 20 RPS. The inner cylinder is at 305 K. whereas, the outer cylinder is at 295 K. The space between this two-cylinder is filled with Glycerine. Find out, the Velocity variations along the radial direction. Draw a radial velocity variation in a chart & export the velocity variations as Excel data.
What Will you Learn From this Tutorial?
✔ Creation of 2D Geometry in ANSYS Design Modeler
✔ All Quad Meshing, in ANSYS Meshing.
✔ How to check Skewness, Orthogonal Quality, the Aspect ratio of the Mesh.
✔ How to Setup a Moving Wall Boundary Condition?
✔ How to change the no of arrows in Velocity Vector.
Two concentric rotating cylinders, both are at different temperature. The analysis in ANSYS Fluent solver. Rotating cylinder Ansys fluent.
#ansys #ansysfluent #ansystutorials
Thanks for all techniques shared here. They are really handy in using ANSYS FLUENT
You're very welcome!
Great Tutorial With Clear A Voice Over.
Thank you 🙂
Oh my god thank yoooooooooooouuuuuuuu . Now we have voice over too
Yes, many subscribers had requested for voice narration of the demonstration.
Thank you, your all tutorials are excellant
Thank you.
Thank you guys ..you are doing incredible work
Thank you 🙏 for your love for our channel.
I just cant fcking thank you enough. I was working on the viscosity subject. And by using shear stress formula where you obtain viscosity with the help of surface area torque and velocity etc. Then i thought that maybe i should ask my Ansys Tutor about a vdieo like this one but oh my god. Its like u heard me there. Know this mister. You are a true legend.
Thank you Henry. Its a pleasure that our tutorial helped you.
Awesome work. 🥳.
Please make a video on Cyclone separator too
Will try to make a tutorial.
thanks, sir. for the tutorial.
Most welcome.
while selecting the line in CFD post-processing, can somebody tell me how to select the co-ordinates of line
thank u so much
Most welcome.
Good job👌👌👌👌
Thank you so much 😀
Thanks you. Can make tutorials about combustion?
Will try to make a tutorial.
Could you please provide the Analysis of Two Concentric Rotating Cylinders in 3D????
Great explanation sir....thank you
Thank you. Please share with your friends.
@@AnsysTutor sure .....can you also provide tutorials on fluid structure interaction....e.g. hydrodynamic journal bearing
Two way fsi or one way fsi?
@@AnsysTutor Two way FSI sir....
Hello sir, your tutorials are great, learning a lot from them but can you plz arrange your playlist according to the order in which a newcomer will get step by step knowledge of ansys fluent as I can see the playlist is arranged as newest to oldest so does the order of the videos matter or one can dive into them in any order.
every video is done with keep in mind of a ANSYS beginner. You can be a pro after practicing 2-3 videos.
@@AnsysTutor ok thank u :)
You are most welcome.
Hello. I encountered a couple problems while trying to follow the tutorial. On my first try, in post processing the vectors I created looked chaotic and randomly placed compared to yours. I tried again and again from the start but while I was creating the mesh, the orthogonal quality got worse the more I tried. Do you have any advice?
You need to adjust the vector size and number of vectors.
Thanks for the video! How would you plot the skin friction coefficient along the inner and outer walls?
You need to create a polyline as a reference location along these walls yo get the plot.
@@AnsysTutor thanks, can this be done in setup?
You can do it in cfd post processing.
Respect Sir, Great Tutorials.
I was working on CFD of Centrifugal Pump and need to draw the characteristic graph.
So how to calculate various parameters like Head, efficiency, Discharge?
Kindly reply.
You can find out these output parameters using the custom made functions.
@@AnsysTutor Thank You sir for the guidance.
You are most welcome.
Respected sir, your tutorials are truly fabulous and you are doing such a great work! Actually I'm having trouble getting accurate output temp in laminar flow..It is, like an eg. I'm putting input temp as 293 K and velocity inlet and it's giving me outlet temp as 292.75458 etc every time, like I think it's not accepting other inlet parameters.. can you please tell me the actual reason behind this issue? Sir, it'll be really helpful 🙏
What about the inlet and outlet velocity?
Yes I also put inlet velocity as 2 m/s and wall temperature as 313 K.. even I increase the inlet velocity to any value, I always get outlet temperature by facet avg/avg weighted just around the inlet temp or sometimes around the wall temperature!
Have you calculated the Reynolds number , have you selected the turbulence model according to that. ?
thank you for the video. Can you please tell how to include the viscous dissipation heat effect when the cylinders rotate?
It can be added, if you select the turbulence model. There is an option to select viscous heating effect.
Ansys-Tutor thank you so much
You are most welcome.
Hello sir, I am a research scholar working on liquid flat plate collector. Studying the efficiency enhancement using various nanofluids. I'm not able to decide my fluid domain. It will be a great help from your side if you make a video on that. Currently there is hardly any video on the simulation of liquid flat plate collector.
Thanks and regards.
You should follow some of the standard research paper ,from there you can get idea about which fluid to use. Will try to make tutorial on simulation of flat plat collector if possible.
@@AnsysTutor that will be a great help to excel my research work sir. Will wait for your next tutorial video !
And thank you so much for teaching us ansys in such a great way..!!
Sir ,
Can we put more value in wall thickness?
As per summary there is no wall thickness so
Is there any problem in final solution?
Its a 2D analysis, so you dont need to put any thickness.
Great tutorial as always.
I did exactly as you did and everything seemed to be ok until solver setup. I do exactly as you do, but sometimes the program goes mad: after calculations the solution cell doesn´t get up to date, instead, it gets refresh required. And sometimes that doesn´t allow CFD post to work properly. Besides my temperature distribution is different to what you got here, like 4 degrees beneath your average value. If you have any clue why this happens would be very helpful. My version is 18.2 btw.
Are you getting any warning or error in calculation process.
@@AnsysTutor not during calculation, just the typical "can't handle Fluent message" after it sometimes. Another thing is that my solution gets converged at 201 iterations, not 206. Maybe there are some initial parameters that differ from what you have at your version that I haven't noticed.
I would suggest you to first note down all the steps and required BC inputs, reset the current setup ,then proceed to the new setup process.
@@AnsysTutor I reset the setup cell but the same thing goes on. I'll try to figure out later what may cause this. Meanwhile I'll move forward to other tutorials. Thanks for taking time to answer.
hi sir first of all i want to thank u for this tuto, then im working on tesla turbine so if u could help me to simulate it
Sorry, currently busy with some work
thank you for videos..I am working on friction welding on two aluminum bars, but I do not come out with results saying that there is a problem. Can you help me with that?
In which package are you currently doing this simulation.
Ansys-Tutor I have used Transient structural
Have you taken any reference from any research paper . I think it should solved using a nonlinear analysis.
Ansys-Tutor I have seen several papers but have difficulty understanding them
Ansys-Tutor do you mean from engineering data choose general non linear materials instead of general materials in transient structural?
What is meant by wall thickness in thermal tab, boundary conditions
Generally all the wall boundaries has zero thickness, if you want to model the wall as it is practically, then you need to provide thickness to the wall.
can you do a tutorial on same problem in 3d with axial through flow?
th-cam.com/video/i5hPpuCm85s/w-d-xo.html
@@AnsysTutor are we able to study the flow structures and heat transfer performance in 3d?
Can u make videos on meshing
Will try to make a detail video on meshing.
I am not getting green tick for solution in workbench window automatically as you are getting.what should I do?
And I didn't get the same temperature contour.Mine is more of blue shade(less temperature more than half of the annulus).I've followed all the steps and tried few times.please help me with this?
Always try to save the File in fluent, after the solution gets completed.
@@AnsysTutor thank you
Can you do the meshing on 3d torus...
Yes.
setup does not showing vectors on surface in workbench 19.2 please help
Try it in cfd post processing.
@@AnsysTutor got it thank you
You are most welcome.
th-cam.com/video/i5hPpuCm85s/w-d-xo.htmlsi=Z3-6Efi10dSX1sMZ in this tutorial you didnt take wall thickness but in this video you take thicknesss of wall , please disuss