Really it is a clear display and understandable

At 2:12, I'm assuming the number at the bottom is meant to be "10^22 molecules".

Informative ✌🏻🙏🏻

This seems to be aplace for people who know about this already. For the rest of you, perhaps it needs an explanation. I'll try - I'm only too happy to be corrected if someone can do better. Essentially, the Navier-Stokes equations describe fluid flow from first principles, but they are not directly solvable (in three dimensions). Therefore one has to use numerical analysis methods on small digitized 'bits' (most often little cubes) and link them all together, which requires massive computing effort, and takes a much longer time than an analogue or watching the thing actually happen. If you've seen turbulence, you will know the results are unstable, sometimes non-obviously difficult to predict. There's another thing with numerical methods, that these themselves can be unstable; results can 'blow up', very small perturbations can cause all manner of mayhem, and one can get entirely different (and wrong) results by using too coarse a grid. But too fine a grid is very expensive in effort and time. Since the lattice Bolzmann approach is a greatly simplified view of what is happening, it cuts down on the burden of computation, and makes more problems feasible to tackle in reasonable time on machines which are less than the size of a planet. Roll on quantum computing.

@sitihabibahshafiai700

5 жыл бұрын

Thanks methuzla on your sharing! Hope it helps others to get the overview of the evolution of this method.

@saudademusic8464

3 жыл бұрын

This is so well explained. Thank you, beautiful soul!

merci très bien expliqué

The Best Explanation for LBM I have ever seen

@sitihabibahshafiai700

5 жыл бұрын

Thank you Dinushika.

@sitihabibahshafiai700

5 жыл бұрын

Thank you Dinushika.

A big round of applause for you!!!

Thank you but Why is the noise!?

Well done Siti

@sitihabibahshafiai700

5 жыл бұрын

Thank You Prof.

Nice video on the LBM and nice animations. At 2:36 you show the LBM equation with the distributions defined at (x,t) and the distributions after streaming at neighbouring nodes connected by a lattice link, but it looks like you haven't included the collision operator? To me this looks like a Forcing term on the right hand side of the equation.

@sitihabibahshafiai700

5 жыл бұрын

Dear Frankie, thank you for notify me the mistake! Yes, you are correct...streaming fa(x+eadt,t+dt)-fa(x,t) while collision (fa-faeq/tau) I missed the correct version of equation in the slide. Thanks again ya.

@FelixFrankie

5 жыл бұрын

@@sitihabibahshafiai700 Thank you for your response and clarification :)

Hello, Can any body provide me full solved problem using Lattice Boltzmann Method any problem

can you share with me this ppt document if u want please bro

Hi, i am developing lbm code for melting of PCM. I need help. how can I contact you?