Collection of FDTD animations - Best Visualizations of Finite Difference Time Algorithm

[@arafatkazi9811]

This is absolutely beautiful.

[@meyavuz]

Thanks a lot

[@itskobold]

this is dope, great to see FDTD visualised. thanks!

[@meyavuz]

Glad you like it!

[@ShredEngineerPhD]

This is godly. Thank you so much!

[@meyavuz]

thank you

[@judclark7376]

At 2:57 it shows the same interference pattern as the double slit experiment

[@meyavuz]

Yes, it acts like a double slit actually. But as far as I remember, the distance between the two openings were not carefully selected so it is rather arbitrary, just to show the concept

[@zirtapot57]

Thanks for the great work, I appreciate it.

[@meyavuz]

👍

[@cryfier]

So cool, do you have papers to these or the codes or anything to find out more :)?

[@meyavuz]

thanks - no papers or codes but you can check the Taflove's FDTD book for more details.

[@nodenpona]

idk what an fdtd even is but i love it

[@meyavuz]

fdtd stands for finite difference time domain which is an algorithm to solve electromagnetic interactions given a scenario.

[@erfan_zar]

Awesome 👍

[@meyavuz]

thanks a lot

[@irfanhassan152]

How can i learn such plotting i know MATLAB can you please share some codes or links where i can learn such plotting? i think you are using something similar to interact function available in python in matlab

[@qingyizhou4696]

I think most of these cool examples are 2D. Do you have some examples using 3D FDTD?

[@meyavuz]

Thanks and unfortunately, I don't have 3D examples here as it is much easier to animate with 2D cases. There are other videos online where you can find 3D FDTD I believe. Thanks

[@JurekOK]

May I suggest, to improve your Matlab skills, to check how to set the colour scale to be constant across multiple frames. It is not difficult and it will make your animations much easier to study. I have moved on to Python, but in my time with Matlab, I would always set the colour scale to be constant across time. May I also suggest that for purpose of visualising waves, a blue-white-red colour scale is much better than Matlab's default. It is not in any of the default library colour maps to choose from, but you will find on file exchange.

[@meyavuz]

Thanks for your comment. I agree with you and actually I have switched using that as well. The first animation is not using but the subsequent ones are using constant scale. Thank you

[@erfan_zar]

Hello, did you use comsol for illustrating this animations? If not, which software have been used for this clip? Thanks

[@meyavuz]

No, actually I have never used it :) These are my own FDTD codes in various formats (C++, matlab etc) where I get the main 2D propagation data. Then I used Matlab to to visualize and animate them.

[@erfan_zar]

@@meyavuz Thanks a lot for your response🙏🏻

[@meyavuz]

@@erfan_zar thank you. :)

[@MuhammadFarhan-eq5er]

Hello sir. Can you give me some tips regarding ground penatrating rada coding for matlab

[@meyavuz]

Salam. For higher quality and more specific videos on GPR please check these videos: kzbin.infosearch?query=gpr

[@meyavuz]

Also, for GPR related FDTD, search for gprMax in google. It gives you free open source Python based GPR code based on FDTD

[@MuhammadFarhan-eq5er]

@@meyavuz does gprmax provide for matlab example coding also? i would love to have discussion with you sir. is there anyway for us to have discussion in another medium

[@ArnavBarbaad]

Which programing language did you use?

[@meyavuz]

Some were C++, some where Matlab.

[@meyavuz]

Visualization is by matlab

[@lavienrozy1867]

it’s been 15 mins… that’s how tic ta works

[@meyavuz]

Cool ty