COMPUTATIONAL FLUID DYNAMICS

COMPUTATIONAL FLUID DYNAMICS | CFD BASICS

Рет қаралды 78,041

5 жыл бұрын

In this week’s video, we talk about one of the most discussed topic in Fluid Mechanics i.e. Computational Fluid Mechanics (CFD). CFD is a branch of fluid mechanics that uses computers to simulate fluid flow problems. We talk about the need for CFD and the various steps involved including discretization(meshing), solution and post processing. We also talk about the fifferent forms of the Navier stokes equation that are used to reduce computational effort from direct numerical simulation(DNS), Large eddy simulation(LES), Reynolds Averaged Navier Stokes (RANS)equations.
The tutorial on ANSYS FLUENT will be uploaded soon.
Hey! If you haven’t come across our channel yet, we are five masters students (Nikhilesh, Kushal,Ankith, Akshar and Sanjeet) pursuing Aerospace Engineering at T U Delft in the Netherlands and make science videos every week. Please do subscribe to our channel and share the videos.
#Science #TUDelft #Masters
Also check out Ankith’s other channel at / ankithjohn

Пікірлер: 105

@jayteehope217 4 жыл бұрын

00:00:00 Introduction 00:00:53 Fluid Dynamics/Mechanics Introduction 00:01:23 Motivation to use CFD 00:02:00 Fundamental Principles of Fluid Dynamics (Conservation of Mass, Momentum and Energy) 00:04:38 Navier-Stokes Equations and Limitation of solving analytically 00:05:49 Solve Navier-Stokes Equations with help of CFD 00:06:30 Discretization 00:07:37 Convert Partial Differential Equations into a System of Linear Algebraic Equations 00:09:24 Solving process 00:09:51 Post-Processing: Visual Inspection, Check on Mass Conservation, Force Inspection etc. 00:10:36 Solving Turbulent Flows: RANS vs LES vs DNS 00:11:38 Reynolds-averaged Navier-Stokes equations (RANS): Time-averaging of Flow Qunatities 00:12:45 Large Eddy Simulation (LES): Modeling of small-scale Eddies, Resolving of large Eddies 00:13:28 Wrap-up

@rajasgaikwad883 3 жыл бұрын

Thanks a ton for making this video! The level of attention to details is unparalleled, feels like I've read an entire book in this 15 minute video. Keep up the good work guys! Your efforts are very much appreciated. Cheers!

@nishipal3297 4 жыл бұрын

You people should be acknowledged for your work by great academicians..keep shining

@bhushan797 3 жыл бұрын

1st video on KZfaq who removes doubts about CFD kudos to you guys..

@benjaminkohweien6572 4 жыл бұрын

This is very informative for my final year project, thank you.

@Ameerscholary Ай бұрын

guys u just made huge shortcut for fluid dynamics thnx alot for this video

@aakashsr6404 2 жыл бұрын

Excellent work!!! Not only the fluid flow, your flow of explanation is exceptional...! Cheers both you guys !!!

@raghukoduri2018 4 жыл бұрын

hope u continue the CFD series....very informative and thnks a lot

@bhaskarchawdhary6219 5 жыл бұрын

Wow, thanks alot sir. You explained the topic so well.

@rameenmeerann4876 4 жыл бұрын

Wow I like the video of CFD with simple explanation, may continue with a real simulation as examples. Great

@NeptunePictures 4 жыл бұрын

Watching you from France. Very instructive ! Thank you :)

@SIRAC.KILINC 2 ай бұрын

I can't pass this video just by watching. I both liked and commented. Thanks to two of you👍

@abhishekm1755 2 жыл бұрын

Clear understanding...... thank you so much guys 💐💐💐💐💐💐💐💐💐💐💐💐💐

@harshakorlur1007 4 жыл бұрын

Very Good Brief Introduction for beginner like me. Thank you very much.

@abhishekshingala1212 4 жыл бұрын

Simplest explanation. Thanks

@sudhidm3122 4 жыл бұрын

Excellent job guys.👌👌👍

@devangmistry1172 3 жыл бұрын

Beautifully explained. love it.

@AKannadiga 10 ай бұрын

Found this video very insightful. You guys have explained all the concepts very well. Waiting for the ANSYS video. Please upload it soon guys. Keep up the good work!

@haria5482 4 жыл бұрын

Good job. Very informative.

@ubaidmundewadi6368 4 жыл бұрын

Really helpful video...Make more videos to explain the integral terms

@bharatbhusanrout8726 4 жыл бұрын

Superb bro .. u are make this cfd very easy

@Tamb097 4 жыл бұрын

Compliment, very clear without report confusional or wrong info

@kottapallibalamuralikrishn4703 4 жыл бұрын

Thank u sir,this vedio helped me a lot

@sakumaran94 4 жыл бұрын

Awesome overview

@albitesdecenonancybetty2775 4 жыл бұрын

very clear, thanks a lot

@mbinacedric3566 26 күн бұрын

thank you for your explanation, it is so clear!!!

@ranilorubiano 2 жыл бұрын

Great Summary. I hope you guys have better visual aids in explaining those important equations... But this is worth watching and as if the summary of what i learned about CFD in several months..

@uvaraniaka1920 5 ай бұрын

Hi guys, this video is really informative to clearly understand the overviews of CFD. Randomly i saw this video and very impressive of you guys.. clearly explained how all the things worked out in CFD... keep going

@Heremyadress 8 ай бұрын

This is a great video with terrific explanantion of the topic!

@kodururaju3230 4 жыл бұрын

Nice explanation all the best

@arnabsaha2330 4 жыл бұрын

please make a video on basics of fluid dynamics it will be helpful for me . By the way this video is very well explained.

@mosta7050 4 жыл бұрын

you're amazing guys

@natarajanm8051 4 жыл бұрын

Very very nice video..super 😍 But..i expected more animation it's easy to understand... Thankyou

@EAR.Pakistan 7 ай бұрын

Great dears. I hope u will reply my question too. 1. In my CFD analysis, Total pressure is not being equal to static pressure plus dynamic pressure. Where I am wrong? 2. Why velocity profile is near walls. 3. How to display maximum / minimum values of results in graphic display.

@watchwise2231 4 жыл бұрын

Thank you guys, great , looking forward for your next video

@2BrokeScientists 4 жыл бұрын

Thanks for watching, stay tuned for more!!

@venkatabrahmatejaharidasu9656 3 жыл бұрын

This is really a great video.... I still can't understand why there are only 3k subscribers..

@petsatcom 4 жыл бұрын

Great job thanks

@atulverma8736 10 ай бұрын

loved the video

@ayanthasilva4094 Жыл бұрын

Superb guys. 🤟😍

@shanuddin6876 3 жыл бұрын

beautiful explanation ty alot

@rushabhyeshwante 3 жыл бұрын

Thanks for making this video.

@ziaurraman3237 4 жыл бұрын

Very accurately explained

@STWNoman 4 жыл бұрын

Awesome

@NB-zj4yv 3 жыл бұрын

Thanks for this video

@contentofAI 4 жыл бұрын

Thank You sir

@diegos2184 2 жыл бұрын

Super bueno, muchas gracias, it means, Very good, thanks from colombia

@FazlayElahi Жыл бұрын

Love from Bangladesh 🇧🇩❤️

@RamPrasad-jx5cg 4 жыл бұрын

Its very Nice

@senthils5416 4 жыл бұрын

Whatever the equation and theory it may be it ll b helpful if u explain in detailed form n concepts with practical examples.basics of Ansys is very important to know CFD.so pls try to upload the video lectures accrding to tat.

@abhishekmc5483 3 жыл бұрын

please explain this : low pass filter in LES, modelling the reynolds stress means what?

@debasis8523 4 жыл бұрын

Good video

@Kme-karanAhirwar 4 жыл бұрын

Can we apply ns equation for two different domain at a same time in cfd.

@adityanayak3314 9 ай бұрын

May I request you sir when one person explain that is better to group because student watch your vedio that is very briefly stable in his mind thank you sir

@shilajawani4003 3 ай бұрын

Great...two gem....But How do I grow up my knowledge in theoretical part ?Any book ? Thanks a lot bhai (for the video )

@anandh1967 4 жыл бұрын

Super sir

@noway2831 4 жыл бұрын

Is there a way to take limits in computer science using the epsilon-delta definition? As in, instead of doing f(x+0.00001) where f(x) is undefined but \lim_{h \to 0} f(x+h) is defined?

@smailhamidatou367 3 жыл бұрын

Sir thanks for your efforts to... but I have a question which is at 12:15 min how I can get their equation RANS?

@laidsalem1554 2 жыл бұрын

Hi,how to find initial conditions and boundary conditions, but I have only Mach number (supersonic velocities), inlet angle and Reynolds number. Thank you.

@erianmuk6091 5 жыл бұрын

Thanks guys!

@adityanayak3314 9 ай бұрын

Good very nice

@STWNoman 4 жыл бұрын

Make a video to explain these integral terms

@yukieperamesti 4 жыл бұрын

Thank you for the video. Would I ask a question about meshing? If I want to simulate the gas explosion in the tunnel (but it is simulate by experimental apparatus). What is the appropriate kind of mesh can I use? Thank you, please let me know the answer. Thank you

@yukieperamesti 4 жыл бұрын

the shape of experimental apparatus is block with the dimension 25 cm x 19 cm x 164 cm

@manikandanr7389 Жыл бұрын

Kindly give videos that should explain works of journals.

@engineers_hub Жыл бұрын

Where is the ansys demonstration link you spoke about in the video?

@sherlockk6547 Жыл бұрын

👍👍

@mangeshdeshmukh2140 Жыл бұрын

Brilliant Explanation , you made things easy to understand , great teachers , keep it up & god bless you both !

@denonavarra5567 9 ай бұрын

Спасибо

@engineeringsimulationstudi1404 4 жыл бұрын

nice

@wolah100 5 жыл бұрын

I think convergence should have been included to make it more rounded.

@saisharath2496 3 жыл бұрын

Hii.. I need to know more about the CFD stimulation how can I approach you can u please explain to me

@Ameerscholary Ай бұрын

i will write each mote you mention god bless you

@shivendrapatel443 4 жыл бұрын

Make a video suggesting which software should we use for CFD like comsol, ansys, abacus etc

@2BrokeScientists 4 жыл бұрын

Hey, it really depends on the specific case and the prior experience you have with these software's

@DK-gt9br Жыл бұрын

How can i understand that how mathematics is working behind a fluid flow i mean i can't imagine this mathematics? What should i do And thank you for such a wonderful explanation

@vishvanthgunasekaran1316 2 жыл бұрын

where can i learn more about CFD?

@coffeegirl8285 2 ай бұрын

Really enjoyed the video and cleared a lot of my doubts..... but the outro volume gave me a heart attack

@krishnamaurya9761 Жыл бұрын

🙏🙏

@nikhilmahalingesh7561 5 жыл бұрын

Won't low-pass filtering remove large scales in LES?

@2BrokeScientists 5 жыл бұрын

In Large Eddy Simulations(LES) the idea is to resolve the large scales and model the small scales. The small scales correspond to higher frequencies, where as large scales correspond to the lower range and hence low pass filtering will allow low frequency(large scales) and attenuate higher frequencies(small scales). Link: sites.google.com/site/smokeisnojoke/lesrans2.jpg

@tuhinpatranabish4450 Жыл бұрын

How to get ANSYS FLUENT software

@tuhinpatranabish4450 Жыл бұрын

How to get Andy's Fluid software

@gokulsomanathan9540 3 жыл бұрын

Myself 25yr old I want to change my path in this career.. Previously was am piping stress engineer..can u explain scope and various platforms of this and one thing is I don't want to doing any course and also getting knowledge from books and videos those enough for beginning

@AngelLestat2 4 жыл бұрын

it is possible to simulate many different physics aspects in the same simulation? Like the effect of buoyancy, thermal flow, phase change for parameters that variant with height for example?

@2BrokeScientists 4 жыл бұрын

Yes, I think there are options to implement the specific conditions on some solvers. But we would suggest you to go through the Software manual to see if it can be implemented.

@AngelLestat2 4 жыл бұрын

@@2BrokeScientists thanks, glad you answer. one last question, without knowing nothing of CFD and the basic principles and formulas for the physics involve, how many hours of tutorials and practice are needed to start to understand how operate these complex softwares? I imagine around 50 to 150 hours? Or some are quite easy to figure out?

@2BrokeScientists 4 жыл бұрын

That would depend on what your goal is. If you are just curious to learn what is happening about the flow then you can just follow some online tutorials and implement them but to actually produce results that mean something its better to start from the fundamentals and then build from there. The time for that is highly variable on your pace of learning and how in depth you want to go

@benjaminoluwadare6125 3 жыл бұрын

Hi, Please send video on turbulent flow modelling. Tx

@2BrokeScientists 3 жыл бұрын

You can check out this beaituful channel for all the details: kzfaq.info/sun/PLnJ8lIgfDbkrhQTjGZ_22z7NoktJTrTF1

@jhwblender 4 жыл бұрын

I know it's a bit of work. But I would appreciate subtitles

@2BrokeScientists 4 жыл бұрын

Thanks Jesse for the suggestion, we will try and add it soon!!

@jhwblender 4 жыл бұрын

Thank you! 😃

@joshuaprabhatpallapati5266 4 жыл бұрын

can u suggest some text books for cfd ?

@mechanicalengineering1528 4 жыл бұрын

J.D Anderson, computational fluid dynamics. Hoffmann, computational fluid dynamics ,with different volumes

@deepakdivakaran9320 4 жыл бұрын

Very useful content, The curve example which was the simplest example to explain discretisation. Please do more videos :-)

@michaelshaughnessy9809 2 жыл бұрын

where is the Ansys Fluent tutorial?

@agileshathithya 2 жыл бұрын

interested for the equation

@petsatcom 4 жыл бұрын

What CFD software is affordable for 2 broke scientists? I assume the $20K software packages are out of reach?

@2BrokeScientists 4 жыл бұрын

Haha, don't think we have the money to afford any CFD software 😅 Hence the broke scientists 🤣

@rushabhyeshwante 3 жыл бұрын

Use OpenFOAM, it's free,but you need an understanding of C++. In OpenFOAM you will get lots of online support. There's also Salome-CFD. Star CCM+ is GUI based but it is damn expensive.

@vishvanthgunasekaran1316 2 жыл бұрын

are you tamil