- Видео 29
- Просмотров 69 977
Reza Alijani
Италия
Добавлен 17 янв 2021
Welcome to Mini Universe!
Main type of power plants
There are lots of power plants, but in this video I explained the most important one.
IEA website: www.iea.org/
If you have any questions feel free to ask me on comments
IEA website: www.iea.org/
If you have any questions feel free to ask me on comments
Просмотров: 56
Видео
Structured vs Unstructured Meah
Просмотров 1,5 тыс.Год назад
Hi guys 😍😍 In this video we discuss the two main types of Mesh In generating mesh we must consider at least three parameter: 1. Geometry 2. Computational cost 3. Flow Regime What is your opinion about "Rectangular" and "Triangular" Mesh ?
Which method is suitable for installing ubuntu?
Просмотров 33Год назад
In this video three main ways of installing ubuntu is explained and their pros and cons are discussed. The three methods are: 1. Virtual Machine 2. Dual-boot 3. Only Ubuntu
The most useful features of the Tecplot
Просмотров 152Год назад
This tutorial is continuation of the two previous tutorials. I highly recommend you to watch the following tutorials: ruclips.net/video/-EH7OOU25kE/видео.html ruclips.net/video/eND1OorXecA/видео.html Feel free to share your opinions in comments
Simulation in OpenFOAM, post processing in Tecplot
Просмотров 1,3 тыс.Год назад
If you like Tecplot and OpenFOAM, but your are not satisfied with the OpenFOAM post processing this video can be useful for you. This is not a complete tutorial for learning Tecplot, but just an introduction. Feel free to share you ideas in the comments. I highly recommend you to watch the video about OpenFOAM post processing: ruclips.net/video/LHkxj8yGKgk/видео.html
Academic Plots for OpenFOAM Simulations
Просмотров 285Год назад
In this video you can learn how to plots by using three software "OpenFOAM" ," Excel", and "Tecplot" . I put the link of two videos which can be useful for you if you were interested in this video. Post Processing in OpenFOAM : ruclips.net/video/LHkxj8yGKgk/видео.html Dam-break simulation in OpenFOAM: ruclips.net/video/Gz0nNH-TEfM/видео.html
Mechanical Engineering Vs Energy Engineering
Просмотров 373Год назад
In this video you can find the main differences and some similarities between Mechanical Engineering and Energy Engineering. Feel free to share your opinions in comments.
How to use two different versions of OpenFOAM in one operating system
Просмотров 2,3 тыс.3 года назад
I hope you liked this tutorial. Sometimes you need to install two versions of OpenFOAM in one operating system, so this video can help you with that demand. If you have any questions , write your question or problem in comments. Don't forget to subscribe the channel.
2D Overset Mesh in Ansys Fluent-Object Falling into Water
Просмотров 7 тыс.3 года назад
In this video, you will learn how to use overset mesh in Ansys which is basically a bit complicated for beginners. I hope this video is useful for you. If you have any questions , write your question or problem in comments. Don't forget to subscribe the channel.
dynamicMesh simulation twoSimpleRotors
Просмотров 2233 года назад
case : twoSimpleRotors dynamicmesh mode : overset
Backward Facing Step Simulation in OpenFoam and Ansys
Просмотров 3,6 тыс.3 года назад
Learn Ansys and OpenFOAM together. I hope you liked this tutorial. If you have any questions , write your question or problem in comments. Don't forget to subscribe the channel.
Introduction to Allrun and Allclean files in OpenFOAM
Просмотров 1,8 тыс.3 года назад
Sometimes, you wall have the error: "Permission denied" If you had it, 1) right click on Allrun then 2) go to properties then 3) change the permission to allow I hope you liked this tutorial. If you have any questions , write your question or problem in comments. Don't forget to subscribe the channel.
Couette Flow simulation in Ansys Fluent (Internal Flow Simulation)
Просмотров 9823 года назад
Couette Flow is a flow between two plates which one of the is stationary wall and the other is moving wall. I hope you liked this tutorial. If you have any questions , write your question or problem in comments. Don't forget to subscribe the channel.
Learn Fortran by solving some practical examples, Part1 FTCS method.
Просмотров 3,9 тыс.3 года назад
I am trying to teach you Fortran and CFD together by solving some practical examples of CFD. I hope you liked this tutorial. If you have any questions , write your question or problem in comments. Don't forget to subscribe the channel.
How to add porous media to our case in OpenFOAM (with short review of fvOption)
Просмотров 6 тыс.3 года назад
How to add porous media to our case in OpenFOAM (with short review of fvOption)
Advantages and disadvantages of CFD
Просмотров 1,7 тыс.3 года назад
Advantages and disadvantages of CFD
Dam-break simulation in OpenFOAM (complete and short video)
Просмотров 3,3 тыс.3 года назад
Dam-break simulation in OpenFOAM (complete and short video)
Learn how to plot residuals in openFoam by means of pyFoam
Просмотров 3,8 тыс.3 года назад
Learn how to plot residuals in openFoam by means of pyFoam
Learn how to convert 2D geometry to 3D in OpenFOAM
Просмотров 4143 года назад
Learn how to convert 2D geometry to 3D in OpenFOAM
OpenFOAM for beginners ,part2, Do your first simulation in OpenFOAM
Просмотров 3063 года назад
OpenFOAM for beginners ,part2, Do your first simulation in OpenFOAM
Post Processing in OpenFOAM ,para view, for Beginners
Просмотров 3,2 тыс.3 года назад
Post Processing in OpenFOAM ,para view, for Beginners
OpenFOAM vs Ansys. Four Main difference between OpenFOAM and Ansys
Просмотров 4,9 тыс.3 года назад
OpenFOAM vs Ansys. Four Main difference between OpenFOAM and Ansys
How to import mesh Ansys mesh to openFoam (flow over cylinder in openFoam)
Просмотров 2,9 тыс.3 года назад
How to import mesh Ansys mesh to openFoam (flow over cylinder in openFoam)
Learn how to calculate lift and drag force in openFoam ,paraView
Просмотров 14 тыс.3 года назад
Learn how to calculate lift and drag force in openFoam ,paraView
flow over cylinder - Von-Karman Vortex Street
Просмотров 4353 года назад
flow over cylinder - Von-Karman Vortex Street
Do you know how to do this in BlueCFD?
Thank you for the video Reza! Very useful!
Happy to heat that from you. I follow you on LinkedIn Dear Kade Beck😃
Hi I didn't get the sys-3 surface in boundary condition
Hi there, thanks for the great tutorial. I am running into the problem of negative cell volume detected while replicating the same simulation. Can you provide any advice. Did try to reduce the time step and use mesh smoothing.
Hi there, is there a way to connect? Are you on LinkedIn? I really enjoyed your work
Can we Techplot in linux system?
@@anirbandas4201 I'm not sure.
Nice, Informative Video. Plz bring more videos on openfoam.
@@anirbandas4201 Thanks for your comment. I think of it and if I get a free time I will
Hi i would like to carry out a similar simulation but for a floating dredge pipe .
can you show how to do lift and drag coeficient
thank you !
thanks for the video.Can you give details about how to do the backward facing step tutorial for a transient flow this time around on openFOAm.I tried the tutorial pitzdaily for the appliucation pimplefoam however the geometry at the end is different so as soon as i modify it the simulation doesn't occur.
Please explain what were the settings in the 1) Models section, 2) Phase Interaction within Multiphase. I'm trying to re-create this simulation but not able to
how can run the simulation parallel and plot the residuals
Nice! But this only deals with the pressure drag. How can I calculate skin drag as well?
it's clear and easy to follow. Thank you so much!!!
Thank you very helpful.
Hi great simulation, i need to simulate multiple moving parts. can i use multiple Overset meshes in 3d simulation. I would be great if you can let me know some tips for simulating that.
I'm attempting a similar probably and running into some issues. Forums haven't been much help
Nice tutorial can you please share your file for partice it will be highly appreciated.
can we use the same with ansys please help
sure, but I have not done it.
Hello Brother, I thank you for the video but there is one thing I am trying to figure out. how did you calculate the Mass moments of Inertia as they are sphere and symmetric (Ixx and Iyy must be the same right)?
Hi and sorry for late reply, I didn't calculate it deeply. It was just a simple simulation to help you get familiar with overset mesh
@@RezaAlijani_RA no worries brother, is it possible to give a hint on how you got those values? This is the one thing I can't figure out in dynamic meshing.
Excellent work!!! ✓Please make a bit longer video of recording complete procedures you are following to make files for your case study. It will help the viewers to follow and do their own tasks independently. ✓Your work is unique and helpful, but require more details !
That's so nice of you
Hi, thanks for the video. May I ask in which situation overset mesh should be used? and what about dynamic mesh. Thank you.
Hi, sorry for late reply. You can use both mesh, but when you have two objects like here and you want one of them to be fixed, it is better to uae overset meah. In turbo machines, we mainly use overset mesh. I hope you get your answer
the .bashrc file is hidden, so to see it type "ls -all" instead of "ls". This might be super basic linux knowledge but hopefully will help some other beginners (like me :D) save time!
Aaaaa thanks
Hi... I am trying to get this in openfoam. I am not able to get this. Can i know what is solver used your case? I used interFaom, but Coraunt number is exploding.. i get an error "floating-point-exception-core-dumped" Can you give any suggestions about this ? Thank you
I used the same solver, but I don't know what is the problem of your case
well done, simple and to the point. Thank you.
Thanks for your comment
Could you make a video on how to solve the same problem in 2D? Cheers
Thanks for your comment. Maybe in future
@@RezaAlijani_RA I hope you'll do,because it would be very useful for most of us! Do you have any idea on how to implement it? Maybe I can try by myself!
Very good video.
Thanks for your comment
can you provide source code
Yes, send an email
@@RezaAlijani_RA whats your email address? I'll try to code the 2D case , may I send it to you for a check? just in case
I´m pretty sure the box is either 200x80 or 100x40, since with these edge length you would have a square-like shape. Additionally the size of the Object being in mm seems to be incorrect as well.
Quelle sont les articles que tu as utilisé pour cette expérience ??
Please, write in English
i have a question that can i use simpleFoam with the air fluid ? just P and U in file 0
Yes, I thinks so.
can u also show for Mac?
Unfortunately, I don't have Mac
Hello, i wanna realize a calculation (difference of pressure), between two extracted surfaces. Do you now how i can do this via Paraview ?
ruclips.net/video/AGyvbBN0ghM/видео.html This video may help you
@@RezaAlijani_RA Thanks for your answer, i already see it in fact, but the calculator is only appliable to one surface at each time. I wanna make a calculation a pressure difference between the two faces of a wall and i do not really find how to do it.
@@hugoguyomard1557 I have not seen that option yet.If it is two different surface you can calculate the pressure in each surface and then by using calculator, calculate the difference. The most advanced method is to create new solver which takes lots of time and effort
Thank you!
Thanks for your comment
I sink
Hey there, thanks for the video! A question: how should I identify the value of D given the pore size and the porosity? Thanks!
Hi, I myself did some try and error to identify my desired D. It's a bit complicated than that you can also use'F' therm which I put to "0", but you can also change that number to have your suitable porosity and pore. Thare are also other examples in openFoam which may be better for your problem. Also try other solvers if this didnt work.
Hi thanks for uploading such a useful video, I have a Question is it possible to add porous media in Foam-extend(fe40) version? if so how. i want to use for visco-elastic models.
Thanks for your pleasing comment. Unfortunately, I have not tried extended version, but you can give it a try and it may work.
Thanks, perfect
Thanks for your comment
Thank you for this tutorial. May you make the case for dambreak?
It's excatly the same steps for dam-break
Thanks, perfect.
Thanks for your comment
Great video, thanks so much for sharing this
Happy to hear that
Thank you for this excellent tutorial sir, liked and subscribed.
Happy to hear that
I have one question regarding the drag calculation. The drag you are considering, is it only for water flow? Or in the calculation, you also have taken the effect of air? Because I have used the same technique as yours to calculate the drag of DTC Hull. However, the drag I got from your method is -46 N and the built-in force function of OpenFOAM provides -40 N. Therefore, I need some clarification. I will appreciate it if you have time to enlighten the matter. Thanks you.
It is the pressure and it can be the effect of the water and air (I mean both). But in my case the effect of air is negligible. The difference in your data can be the result of many factors. including mesh grid and etc.
@@RezaAlijani_RA Thank you Sir for the response. I want to provide you a lil bit more information about the case, 1. The result I am showing is from the same simulation. 2. In the built-in case, they also have introduced only water. Question: Is there any way to check in paraview which area has been taken into account to calculate drag? Thank you for your time.
@@kawsarsajib8600 when you extract block and surface, it means it is the area where the drag is going to be calculated on.
@@RezaAlijani_RA Thanks for your time. Best of luck and hope to watch more demonstrations from you.
Which one is more accurate?
of course both of them are accurate, but in openFoam you have more access to whatever you want
You mentioned that we can calculate for all time steps. Is this method for all time steps or just for the 1.1 sec which was selected above ? could you share the process for calculating lift and drag forces for all the time steps ? Thank you, would really appreciate your help.
Yes, we can do it. You should just select your desired time step then you can continue the process.
But how can we plot all the values of forces for timesteps???
@@siddheshpujari9140 I looked for it, but I couldnt find a way to do so. I used excel to plot them. I wrote the amount in each time step and then imported them into excel.
Thank you for your tutorial. How can we save the image of that graphs?
As far as I know, there is no option for that. You can take screen shot
Thanks, it was short and helpful!
You are welcome