thank you. you mentioned this method is useful in spray cooling at (25:50). could you mention shortly how we can make the flow as spray droplets rather than continuous water flow ? would love to see a similar cooling process using spray cooling.
Great job.. Can you please make tutorial for double pipe hx, with one phase is changing phase(boiling in outer tube) and one in continous phase like air(inner tube)
Hi, great video thanks. I cannot get find the 'primary phase' and 'secondary phase' tab to appear. Do ou know of any solutions to this? Any help would be greatly appreciated.
Great tutorial, thanks ! Just a question : Why using a non-iterative time advancement ? Is it because you want to do a bunch of iterations at a given time before going to the next time step ?
Thank you for watching and thank you for your comment. It is a CFD method for transient simulations. It is faster than iterative. Nothing related to physics of the problem. Please refer to Patankar's book for more details.
Thank you, It is very productive, even it guide me to proceed with my research. Currently, I'm simulating hot air (at about 200-300 Celcius ) passing through the dense and patched particles (solid) at room temperature. I think the Eulerian model is dedicated to gas-solid regimes, but when I'm applying it to my problem floating point exception error pops up at about 5-10 iteration later. I would appreciate it if you answer.Thanks for help
Thanks for such a great tutorial. How to analyze a phase change over the circle in the same problem? Like, if we take the temperature of the circle, say 400K then water will vaporize after coming in contact with the circle, then how to simulate that in Ansys? Thanks in advance :)
Thank you for your comment. Most of the models used in ANSYS Fluent are based on continuity assumption. In nano level, the assumption of continuity is not valid anymore and we cannot use the regular fluid dynamics equations. I am not sure what is the problem you are looking for exactly, but I believe Molecular Dynamics (MD) simulations will be a better approach for nano scale simulations.
@@AdvancedEngineeringTutorials I mean a paper like attached link, please look at this paper, it is an examle of nanofluid with mixture model link.springer.com/article/10.1007/s10973-018-7349-x
thank you, I want to model air containing pollutant as particles. when I inject particle in room, resalutes are nonsense what do u offer for better modelling? I would appreciate if you answer.
Hi, thank you for watching and thank you for your comments. Are they solid particles? if yes, may be Eulerial simulation would be a good choice. Please check out these links: www.ce.utexas.edu/prof/Novoselac/classes/ARE372/Handouts/Tutorial_example.pdf cyberleninka.org/article/n/1472883.pdf
When I check Сell Zone Condition Air is fluid and Circule is Fluid. But in your tutorial Air is fluid and Circule is Solid automaticly. When I change the type of Circle from fluid to solid I get an error "materials in neighbor cell threads (6 and 5) of interior zone 8 are of different types (water-liquid and aluminum). This problem MUST be fixed before solving!" And I exactly repeated every step from your tutorial. How can I fix the problem and change the Circle type to solid correctly?
Thank you for watching and for your comment. You can change the type to solid in design modeler and/or meshing. Also, make sure that in the meshing it is not creating the interface automatically, and make sure you make a single part from two bodies in the design modeler. Changing the type in the fluent also should work. If the problem still exist, you can export the fluent case file and send it to my email and I can take a look at it. simpro2144@gmail.com
I changed the type to solid in meshing! Thanks. Changing the type in the fluent also works but I get the error described above... And one more question. You used boolean operation in design modeler. What if I use two bodies in the design modeler without boolen (one is solid, one is flued)? It's just for understanting.
@@victorvin4707 What type of boolean? I used boolean to subtract, in the geometry creation you can not have two overlapping bodies in one point. So when we create the circle inside the rectangle, we need to subtract the circle to create a void inside the rectangle while keeping the circle as the surrounding fluid. Please let me know if that is clear. If not, please clarify your question. Thanks.
@@AdvancedEngineeringTutorials "you can not have two overlapping bodies in one point". Thais is all clear. For example, if I have some solid area in fluid (or some fluid area in air) I need to subtract to avoid overlapping bodies.
i followed the same steps, but its showing "floating type exception" error after 8% calculation. Can someone please help me how to find that error out and rectify?
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Very very Productive... Thanku so much for this video... Keep it up
Thank you for your comment
thank you. you mentioned this method is useful in spray cooling at (25:50). could you mention shortly how we can make the flow as spray droplets rather than continuous water flow ?
would love to see a similar cooling process using spray cooling.
Great job..
Can you please make tutorial for double pipe hx, with one phase is changing phase(boiling in outer tube) and one in continous phase like air(inner tube)
Very Thanks. You saved me!
You are welcome! Thank you for your comment.
Thanks for the tutorial, could you please add the link for the book that talks about the relaxation factor?
Cheers
Good job. Thanks
Thank you for watching and your comment. Please subscribe to our channel for more videos.
Super tutorial. What is the book that explains relaxation parameters, solution methods, multiphase model?
Thank you for your comment, here is the book I mentioned.
www.amazon.com/Numerical-Transfer-Hemisphere-Computational-Mechanics/dp/0891165223
Hi, great video thanks. I cannot get find the 'primary phase' and 'secondary phase' tab to appear. Do ou know of any solutions to this? Any help would be greatly appreciated.
Thank you for watching and thank you for your comment. Did you turn on the two phase?
Great tutorial, thanks ! Just a question : Why using a non-iterative time advancement ? Is it because you want to do a bunch of iterations at a given time before going to the next time step ?
Thank you for watching and thank you for your comment. It is a CFD method for transient simulations. It is faster than iterative. Nothing related to physics of the problem. Please refer to Patankar's book for more details.
Thank you, It is very productive, even it guide me to proceed with my research. Currently, I'm simulating hot air (at about 200-300 Celcius ) passing through the dense and patched particles (solid) at room temperature. I think the Eulerian model is dedicated to gas-solid regimes, but when I'm applying it to my problem floating point exception error pops up at about 5-10 iteration later. I would appreciate it if you answer.Thanks for help
Thanks for such a great tutorial. How to analyze a phase change over the circle in the same problem? Like, if we take the temperature of the circle, say 400K then water will vaporize after coming in contact with the circle, then how to simulate that in Ansys? Thanks in advance :)
That is a two phase and phase change problem. You can search online for that. Evaporation simulation is very intense in CFD.
Thanks a lot, it was really great job. Is it possible for you share a two phase mixture model with nanofluid?
Thank you for your comment. Most of the models used in ANSYS Fluent are based on continuity assumption. In nano level, the assumption of continuity is not valid anymore and we cannot use the regular fluid dynamics equations. I am not sure what is the problem you are looking for exactly, but I believe Molecular Dynamics (MD) simulations will be a better approach for nano scale simulations.
@@AdvancedEngineeringTutorials I mean a paper like attached link, please look at this paper, it is an examle of nanofluid with mixture model
link.springer.com/article/10.1007/s10973-018-7349-x
thank you, I want to model air containing pollutant as particles. when I inject particle in room, resalutes are nonsense what do u offer for better modelling? I would appreciate if you answer.
Hi, thank you for watching and thank you for your comments. Are they solid particles? if yes, may be Eulerial simulation would be a good choice.
Please check out these links:
www.ce.utexas.edu/prof/Novoselac/classes/ARE372/Handouts/Tutorial_example.pdf
cyberleninka.org/article/n/1472883.pdf
@@AdvancedEngineeringTutorials .thank you so much
Can you simulate electrical discharge machining process on Ansys fluent??
Thank you for watching. I am not sure how to do that.
When I check Сell Zone Condition Air is fluid and Circule is Fluid. But in your tutorial Air is fluid and Circule is Solid automaticly. When I change the type of Circle from fluid to solid I get an error "materials in neighbor cell threads (6 and 5) of
interior zone 8 are of different types (water-liquid and aluminum). This problem MUST be fixed before solving!" And I exactly repeated every step from your tutorial. How can I fix the problem and change the Circle type to solid correctly?
Thank you for watching and for your comment. You can change the type to solid in design modeler and/or meshing. Also, make sure that in the meshing it is not creating the interface automatically, and make sure you make a single part from two bodies in the design modeler. Changing the type in the fluent also should work. If the problem still exist, you can export the fluent case file and send it to my email and I can take a look at it. simpro2144@gmail.com
I changed the type to solid in meshing! Thanks. Changing the type in the fluent also works but I get the error described above... And one more question. You used boolean operation in design modeler. What if I use two bodies in the design modeler without boolen (one is solid, one is flued)? It's just for understanting.
@@victorvin4707 What type of boolean? I used boolean to subtract, in the geometry creation you can not have two overlapping bodies in one point. So when we create the circle inside the rectangle, we need to subtract the circle to create a void inside the rectangle while keeping the circle as the surrounding fluid. Please let me know if that is clear. If not, please clarify your question. Thanks.
@@AdvancedEngineeringTutorials "you can not have two overlapping bodies in one point". Thais is all clear. For example, if I have some solid area in fluid (or some fluid area in air) I need to subtract to avoid overlapping bodies.
@@victorvin4707 correct! :)
i followed the same steps, but its showing "floating type exception" error after 8% calculation. Can someone please help me how to find that error out and rectify?
Hi, thank you for watching and thank you for your comments. Could you please explain more? or send an screenshot?
Advanced Engineering Tutorials I resolved the issue by giving some initial velocity in the “initialisation” section.
Thank you!