ANSYS Fluent Tutorial | Nanofluid Flow and Heat Transfer Modeling | Single Phase Model
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- เผยแพร่เมื่อ 27 ก.ย. 2019
- In the Current tutorial, The Nano Fluid is flowing inside a compact pipe. The Al2O3 and water Nanofluid has been taken as the working fluid, there is a constant heat flux on the pipe wall. With variation in Volume Fraction of AL2O3, the change in outlet Temperature has been observed.
What will you learn from this tutorial?
- Meshing with Biased edge sizing.
- Modeling the Nanofluid flow for Single Phase Model.
References:
iopscience.iop.org/article/10...
#nanofluid #ansystutorial #ansysfluent #ansystraining - วิทยาศาสตร์และเทคโนโลยี
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Thank you. I was looking for this tutorial for a long time.
May God bless you. 😊
Thank You :)
I would love to see more tutorials focused on Nano-Particles inside a heat exchanger much appreciated. Thank you.
will try to make a tutorial.
@@AnsysTutor sir how to validate results with paper
Thank for the educative video. It really covers contemporary and emerging field of nanotechnology. However, the velocity of nanofluid is usually calculated from the Reynolds number relation and its function of density and viscosity. These parameters change with change in concentration. since in this tutorial you consider phi = 0 and 4, the velocity of o.233m/s can not be used in both cases.
yes ,I totally agree with you. I strongly applogize for the mistake , the velocity in the second case should be 0.230 for a Re= 1050. will try to add a note in the video if possible. Thank you for your correction.
@@AnsysTutor Should we use same Reynolds number for comparison ? Can ı use same velocity both fluids, is this wrong for comparison?
Beautiful tutorial. Thank you Sir
Most welcome🙂🙂🙂
very helpful video. please make a video on how to apply a non uniform (gaussian) heat flux on wall of tube
th-cam.com/video/GVSLyb7buEU/w-d-xo.html
Thank you for your help.
Most welcome
@@AnsysTutor I have one question, in this simulation What is the value of gravity and how can it be calculated, please help me.
firstly thank you. I have a question. Nanofluid out temperature was smaller than water (%0) in setup part (face average ) but in results part of the program you draw a chart and nanofluid temperature bigger. So what is the difference ?
Nice
you're the best Djazak Allahu khayran
Thank you, please share with your friends. 🙏🙏🙏
Thank you .
most welcome🙂🙂🙂
Good Tutorial for Nanofluid Flow and Heat Transfer for Single Phase Model. Can we give property for both fluid and nanoparticle inspite of calculating from the formulae? How can we do it for the multiphase model?
thanks so much.
But there is just a little change in temperature in whole cases!!!
Is it really important?
Shouldn't we assume more variation to see temperature changes?
thanks!!!
Most welcome
Hello sir
Regarding the properties of nanofluids that I have to use when I create material in Ansys, should I use the properties we calculate from some equations depending on the concentration of it or use the general propriety of nanofluids from a table at some temperature?
I am working on the same project and making same in 3d how can I make that in stimulation and also I wana check whether it is correct or not
Hello Mr, It is a good video. I have question about inlet velocity. Which properties used to calculate inlet velocity in the second case of nanofluid, thermophysical properties of nanofluid or base fluid?
why did you use the facet average to calculate outlet temperature while we can use the average mass weighted average to calculate it?
Great tutorial sir, hoping for nanofluid two phase simulation using vof in future sir ✌️
Will try to make a tutorial.
Thanks sir, I watched more than five times it was a perfect video. Can you please make a video tutorial on drag reduction in the pipe using drag reduction agents like polymer, surfactant, and nano??
Such type of simulation might require dynamic meshing.
Thank you for your amazing tutorials. Is it possible for you making a tutorial about EHD (Electrohydrodynamics) heat transfer enhancement with nanofluids?
So far there is no tutorials about EHDs anywhere!!!
thank you.
Will try to make a tutorial if possible.
where to specify nano particle size in ansys..please help me
It's a great tutorial in the field of nanofluid research; especially, for beginners like me. Thank you, sir. It is not clear to me about inlet velocity and how we use Raynold's number here in this simulation. Would you please let me know?
You can get all the information regarding this in the research paper link given in the video description.
Hi .Can you post a video about effects of a magnetic field on the flow of a nanofluid around a fixed cylinder .thanks
Hi, I just want to know what version of ANSYS did you use. Thanks
its Ansys 19 .
the number of time steps is different in both the simulations? Won't that be causing an error?
It would not cause any error, but the results would be different .
Can i know why in initialization part you compute from the inlet? Is there any different compare to others?
You can choose any option that's not an issue. As flow generally starts from inlet and mesh is more refined in the inlet that's why I had selected inlet.
@@AnsysTutor thank you :D
hi i want to calculate the outlet temprature in shell and tube heat exchanger using two fluids so how can be calculate
two fluid in the same tube or different tube .plz tell a more detail about this.
It helps a lot. Thanks for sharing such a valuable tutorial. I wanna know the size of nanoparticle used in this simulation and how can we specify the size in fluent ?
th-cam.com/video/X6JWlz1vcEY/w-d-xo.html for more details please find the research paper link given in the video description.
sir...after using nanofluid outlet temperature is less.. how to solve it?
Are you getting any reverse flow warning?
Thank you sir.can you make a tutorial on charging of phase change material?
will try to. Thank you for your querry.
Please make a tutorial for two phase nanofluid flow. Thanks
th-cam.com/video/bQXovY7TiI0/w-d-xo.html
What is the particle size of the nanoparticle?
can you plzz explain the formulas and method showing at 7:44 timing of video
Find the reference link in the description for more information regarding the formula.
applied all the simulation steps of your video but I don't have the convergence
How is the residuals vs iteration graph.
Thank u sir for this tutorials...sir can u plaese cover a theoretical part too will be beneficial
will try to create such tutorials soon.
How To add Variable Wall Temperature Boundary Conditions, My 2D Wall Temperature Varies With Respect to Position (Vertical Distance) only, Not With Respect to Time? Can You please Help me out in In This?
You need to write a UDF for this.
@@AnsysTutor Can You please Provide me The Format?
Thanks sir. Can you make a video tutorial on barium sulphate precipitation in a reactor. They use population balance model coupled with CFD for this simulation. Thanks
if you have any research paper on that then please send to us ,if its possible will try to make a tutorial. ansystutor7@gmail.com
@@AnsysTutor thanks for the reply sir. Sure, will send the some articles related to this subject.
Sir, how to model rise in surface temperature due to fluid flow in Ansys Fluent?
th-cam.com/video/GVSLyb7buEU/w-d-xo.html
Thanks for the video sir. How can we get the values of density, Cp, thermal conductivity, and Viscosity for different nanoparticles volume fraction PHI? please guide me, sir
The reference research papar link given in the description. You can find all the details regarding this.
Thanks for your efforts in this video. However, i would like to know when i use single phase ( nanofluids) and when i use two phases ( water+ nanofluids) as I'm a bit confused.
single phase problems take lesser time to solve and have a lesser accuracy than the multiphase problem. So if you want a better accuracy then I would suggest you to go for multiphase model.
@@AnsysTutor thanks for your reply
very nice teacher, teacher can u make a tutorial how to make matching the mesh between two different solid bodies, and adding materials to the solid bodies by CFX ?!
thank you, I did not get you, is your query is regarding the conformal and non-conformal meshing?
@@AnsysTutor yes teacher that is exactly what i ment, also if its possible how we mesh different part or body separately
while creating the geometry if you will make all the parts into a single part it will result in a conformal meshing ,if you will keep each part separate then it will result in a nonconformal mesh.
@@AnsysTutor so can we fix that conformal meshing?!
yes, you can change the cell size, using the local mesh approach.
Sir.. I am a final year undergraduate Faculty of engineering university of peradeniya. I'm doing a research call "Impact of tsunami generated objects on coastal structures using Computational Fluid Dynamics".Therefore I developed a Tsunami like wave using Ansys Fluent (below i attached Geometry of the flume and Tsunami like wave) now i struggled in how to floating a object (like box shape or disc shape) on the wave and how to hit with any structure (basically a wooden pannal)
Please Can anyone help me?
I tried this in Ansys 2021-R1 and got completely different results. Can you explain why?
The results might be different due to the mesh.
@@AnsysTutor thank you for reply. But everything was the same step by step.
Are you getting any reversed flow warning? And how much is the difference in the results.
@@AnsysTutor There is no error related to reversed flow.
Thank you. I was looking for this kind tutorial.
what about nanofluid in a cavities heated differently. Please help!!!!
May God bless you.
Thank you , would you share a little more information about what you want in the tutorial.
@@AnsysTutor Hi;
I have a cavity heated from below and cooled from the top with a nanofluid inside
@@AnsysTutor Do you have an account to speak freely
11:21 Number of Interations are supposed to be 1800, not 1000.
This is a simulation based on a micro-channel, not a nano-sized channel
Yes.
Hello sir, I'm following your videos from a long time. At present I'm working on CFD analysis of heat transfer in rice husk gasification using supercritical water fluidised bed. During the simulation, I'm facing the negative error of specific heat of rice husk. How should i rectify it???. Please help me sir!!!!
What is the warning message that you are getting ?
@@AnsysTutor Warning: invalid Cp for rice husk at 300K
Sir how to validate results??
You need to follow any standard reaserch paper for this validation.
i need a help....plzz reply
Yes, please ask
Btw.you are doing homogeneous modeling. But the nanofluid is heterogeneous entity.
Its a single phase model with some assumptions. For more details info regading this model, read the link given in the description.
17:49 WTF...
Can u train me for nanorefrigerant simulation.. My apki fee pay karunga