heat generation since '3D' geometry, using extrude instead of sketch from surface, then can sketch on another surface 5:40 create air domain from another sketch both - axisymmetric : can extrude both side must use boolean(subtract from air domain to solid) ______________________________________________________________________ 9:27 Mesh *if too many mesh elements, increase mesh elements size 11:00 body sizing+edge sizing, hard behavior *Put more mesh(2e-3) at heat generation solid than another domain(4e-3) -> can check through skewness, orthogonal quality 13:45 high skewness should be minimized. _________________________________________________________________ 19:06 solver setup check gravity, y = -9.81 cell zone condition : input(heat generation) boundary condition : via System Coupling, coupled, inlet - velocity, temperature, outlet - type outflow ______________________________________________________________ 23:12 Results
Awesome!!! Learned a lot... My problem has a heat source, for which I don't have value in W/m3, but the surface maintains constant temperature of 68 Degree celcius. I have to analyse how the heat transfer varies when the outer domain pressure varies. So I have to analyse at different pressure levels, But I am getting same heat transfer rate for different pressure levels, Where could have I gone wrong? Need your inputs brother
thanks so muchfor your this great video, could you please explain why you choose thermal boundary condition for many walls other than the connection wall, like the side_walls, why not adiabatic BC?
Adiabatic BC generally constraints the Boundaries to Zero Heat flux, but in the current problem we want to calculate the heat gained by the walls, for that reason the "via system coupling" BC has been chosen for most of the wall.
it's good , Thank for video But, I'm any question. Can you make a new video about this but reverse your heater is one product and the air flow to heat exchanger. I'm need to know contact time for product. Thank you
Very nice tutorial! I'd learned a lot! Could you please tell me how long does it takes (aproximately, i know that depends on your PC power) to run the calculations?
@@AnsysTutor Thank you so much for the info! I ran the calculation with only 100 iterations and it showed pretty decent results as yours, and only took me around 10 min. (AMD i4, 8 GB RAM)
Hi there I am going to simulate a fire in tunnel by using fluent ansys and I have question about the density of air inside the tunnel how should i define it is it incompressible ideal gas or ideal gas the problem is transient grateful yousef
Hello sir thanks for the outstanding video. Could you please make a tutorial with respect to Water Turbine Cfd. There are not an extensive videos about it on youtube. 🙏🏻
Great video sir. I am trying to simulate convective heat transfer on an automotive heat exchanger, i am facing some difficulties. Can you help me out? please
I have followed through the tutorial, but when I do the Fluent analysis my energy line goes up instead of going down as shown in 22:58. Is there a reason for this?
Can you make the same problem with transient condition instead of steady-state. Like i want to learn how exactly air around the system circulates through natural convection and would be very helpful if you do tell me how to animate for the same at any plane in the fluid domain.
Watch our tutorials on transient simulation. We had also shown in many videos how you can setup a plane on the domain to see the animation. Please watch these.
@@AnsysTutor i tried to find the vidoe but couldnt . In all the cases you have either taken 2D body and done transient heat transfer for animation but none for 3D body transient heat transfer with animation. Help me with it. if you can guide.
Really nice tutorial but I have a question about the temperature gradient of the heat source. I think the upwind faces should have some difference in temperature when compared to the downwind surfaces. Is there something that has been omitted to cause this effect?
Nice tutorial. I'm trying to simulate a fluid which generates its own heat (like a exotermical reaction). I have no data of the reaction, only the equation that describes it in cilindrical coordinates. In CFX, how could I input this? I've tryied to insert as an energy source term in subdomain. Despite the temperature distribution have given as I hope, the values does not. Thanks in advance for any help.
In which fluid domain you want to perform Cfd analysis... Like CFD solving scheme will change when you do study for subsonic regime or supersonic regime. I have 3 years of experience in missile Aerodynmaics design. If need any help email me kanavhypersonic59@gmail.com
If there would be both solid and fluid region present in the domain then the shadow walls would be generated automatically without the presence of any contact surface.
How can I do the opposite? I'm trying to heat a piece of wood at 25°C with hot air at 100°C but the temperature from the wood doesnt change. Could you help me ?
At 13:49, I don't get more concentration of nodes in the inner domain like you did. Both the outer and inner domain have same concentration of nodes. Here's the image... drive.google.com/open?id=1ohkUyarbEdy9Y9oJBF-7zl9-B9kC2pv6 Thanks
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Wow.... I think this is the first channel where i learnt so many new things in one video...THANK YOU SIR🙂
Thank you for your love for our channel.🥰🥰🥰
What a tutorial. Really helpful.
Thank you.
heat generation
since '3D' geometry, using extrude instead of sketch from surface, then can sketch on another surface
5:40 create air domain from another sketch
both - axisymmetric : can extrude both side
must use boolean(subtract from air domain to solid)
______________________________________________________________________
9:27 Mesh *if too many mesh elements, increase mesh elements size
11:00 body sizing+edge sizing, hard behavior *Put more mesh(2e-3) at heat generation solid than another domain(4e-3) -> can check through skewness, orthogonal quality
13:45 high skewness should be minimized.
_________________________________________________________________
19:06 solver setup
check gravity, y = -9.81
cell zone condition : input(heat generation)
boundary condition : via System Coupling, coupled, inlet - velocity, temperature, outlet - type outflow
______________________________________________________________
23:12 Results
Thank you very much. It was extremely helpful in learning.
You are most welcome. 🙏
Nice vedio and useful one... keep it up
Thank you Jaydeep.
Awesome!!! Learned a lot...
My problem has a heat source, for which I don't have value in W/m3, but the surface maintains constant temperature of 68 Degree celcius. I have to analyse how the heat transfer varies when the outer domain pressure varies. So I have to analyse at different pressure levels, But I am getting same heat transfer rate for different pressure levels, Where could have I gone wrong? Need your inputs brother
Great Job !!!
thank You 🥰🥰🥰
Very nice channel! love it
thank you:)
nice channel 👍,keep posting videos.
so amazing teacher so amazing , 😊😊😊👍👍👍👍👍👍👏👏👏👏👏
thank you🥰🥰🥰
Outstanding work....and is really helpful
Thanks a lot Ananthavishnu.
This was very helpful, thank you!
You are very welcome.
Hi
Do you have a full article or report of this simulation?
No. Its just a random tutorial demonstration , its not based upon any research paper.
Do you know how we can find the local Nusselt number, local heat transfer and thermal boundary layer?
@ 9:49 , In my mesh interface I am unable to get size function instead of that influence volume is there , what to do?
Yes any one can be choosen. Or you can also skip that one.
Hi, could you make a video on how to simulate an electric baking oven on ansys fluent? If that's Ok?
We already have a such type of tutorial please go through this.
ruclips.net/video/Vsl62RqpWFA/видео.html
Thank you so much. Do you have a video on how to simulate food inside the oven, to see whether it gets cooked evenly and at what temperature.
thanks so muchfor your this great video, could you please explain why you choose thermal boundary condition for many walls other than the connection wall, like the side_walls, why not adiabatic BC?
Adiabatic BC generally constraints the Boundaries to Zero Heat flux, but in the current problem we want to calculate the heat gained by the walls, for that reason the "via system coupling" BC has been chosen for most of the wall.
i realize Im kinda off topic but does anyone know of a good place to watch new tv shows online ?
@Malcolm Titan Flixportal :)
@Bentley Donald Thank you, signed up and it seems to work :D I appreciate it!
@Malcolm Titan no problem :)
This is so useful .
Would you please make or guide me to simulate heat transfer charcteristics through circular microchannel??
it's good , Thank for video
But, I'm any question. Can you make a new video about this but reverse your heater is one product and the air flow to heat exchanger. I'm need to know contact time for product. Thank you
How to deal with connection during meshing? It often shows Overlapping Geometry, if the connections are not deleted.
You should make all the parts into a single part or delete the contact surfaces.
Very nice tutorial!
I'd learned a lot!
Could you please tell me how long does it takes (aproximately, i know that depends on your PC power) to run the calculations?
thank you, the calculation generally takes 3 hrs of time for an i5 processor, and 8gb RAM.
@@AnsysTutor Thank you so much for the info!
I ran the calculation with only 100 iterations and it showed pretty decent results as yours, and only took me around 10 min. (AMD i4, 8 GB RAM)
thats great, is the mesh is same or different. ?
Hi there
I am going to simulate a fire in tunnel by using fluent ansys and I have question
about the density of air inside the tunnel how should i define it is it incompressible ideal gas or ideal gas
the problem is transient
grateful
yousef
can we provide a constant temperature to a domain
Yes
sir i am getting a temperature loop but my total heat flux is zero and also nusselt number is zero how we get total heat flux@@AnsysTutor
Hello sir thanks for the outstanding video. Could you please make a tutorial with respect to Water Turbine Cfd. There are not an extensive videos about it on youtube. 🙏🏻
will try.
@@AnsysTutor thank you so much in advanca it would be appreciated greatly 😊🙏🏻
Am simulating jet impegment problems..I am not getting proper results. Can u help me??
mail us with all the details ansystutor7@gmail.com.
Great video sir. I am trying to simulate convective heat transfer on an automotive heat exchanger, i am facing some difficulties. Can you help me out? please
you can contact us via email ansystutor7@gmail.com
great video sir. can u show me how to add a variable heat source term ?
you variable heat source you can put the Parametric Input option, or you can Write an UDF for variable data input.
I have followed through the tutorial, but when I do the Fluent analysis my energy line goes up instead of going down as shown in 22:58. Is there a reason for this?
There might be the problem in the mesh. Improve the mesh quality.
Can you make the same problem with transient condition instead of steady-state. Like i want to learn how exactly air around the system circulates through natural convection and would be very helpful if you do tell me how to animate for the same at any plane in the fluid domain.
Watch our tutorials on transient simulation. We had also shown in many videos how you can setup a plane on the domain to see the animation. Please watch these.
@@AnsysTutor i tried to find the vidoe but couldnt . In all the cases you have either taken 2D body and done transient heat transfer for animation but none for 3D body transient heat transfer with animation.
Help me with it. if you can guide.
See the crude oil water flow tutorial.
Really nice tutorial but I have a question about the temperature gradient of the heat source. I think the upwind faces should have some difference in temperature when compared to the downwind surfaces. Is there something that has been omitted to cause this effect?
Use the "local" tempr variation contour to see the tempr variation in that face only. For the full domain check with the "global" option.
Nice tutorial. I'm trying to simulate a fluid which generates its own heat (like a exotermical reaction). I have no data of the reaction, only the equation that describes it in cilindrical coordinates. In CFX, how could I input this? I've tryied to insert as an energy source term in subdomain. Despite the temperature distribution have given as I hope, the values does not. Thanks in advance for any help.
Hi, I am planning to learn CFD simulations using fluent, is there a tutorial for that? majoring aerodynamics
will try to do some tutorial on that.
In which fluid domain you want to perform Cfd analysis... Like CFD solving scheme will change when you do study for subsonic regime or supersonic regime.
I have 3 years of experience in missile Aerodynmaics design. If need any help email me
kanavhypersonic59@gmail.com
Hello! I am a beginner. Can I download these videos and share them with my classmates and friends? Learn from each other. Thank you!
yes , you can download. you can share the link also.
@@AnsysTutor thank you very much!!
''Wall boundary condition - thermal -system coupling'' doesn't make sense. There is even no coupling in the workbench.
So how to instruct the solver that this wall is participating in Heat transfer calculations.
what if the connection wall is the inlet of fluid? how to realize that? thank you very much
If you want any wall to convert it as inlet you can change the boundary conditions
At 20:51 the connection wall shadow material should be air right since the connection wall is aluminum?
Its not a shadow, its a shadow wall, the extreme end wall near the fluid domain. The fluid material should not be assigned to any wall.
20:36 Isn't bottom wall air? It's selected as Aluminium
Sir is it air temperature or solid body temperature...?
please specify the video time which you are refering to.
How the connection wall shadow was created? there was no connections in the Meshing step and also there is no "mesh interfaces" in the fluent.
If there would be both solid and fluid region present in the domain then the shadow walls would be generated automatically without the presence of any contact surface.
@@AnsysTutor it is not true, you can test it, for example if you have 2 D it wont created automatically
There would not be any shadow wall in 2d domain. Shadow walls only gets generated in 3d
@@AnsysTutor so it should be generated manually in 2d domains? Or shadow wall is not required for 2D conjugate heat transfer simulation
pLz make one video on AC.....PLZ SIR
Will try to make a tutorial.
How can I do the opposite? I'm trying to heat a piece of wood at 25°C with hot air at 100°C but the temperature from the wood doesnt change. Could you help me ?
what is the velocity of air and the reynolds no .
@@AnsysTutor i'm trying to use 1m/s of air at 100°C. Reynolds number is aprox. 13009,6286
@@AnsysTutor Could I send you some emails? would help me a lot with my academic research !!
you can contact via email : ansystutor7@gmail.com ,all the social media links have been provided in the about section of our youtube channel page.
@@AnsysTutor ok thank you!!
At 13:49, I don't get more concentration of nodes in the inner domain like you did. Both the outer and inner domain have same concentration of nodes. Here's the image...
drive.google.com/open?id=1ohkUyarbEdy9Y9oJBF-7zl9-B9kC2pv6
Thanks
check if you had done all the parts as one part or not , and check if mesh behaviour is soft or hard.