to the future...

Malaysian Society for Numerical Methods (MSNM)

“Calamus Binarii et Scientia“
to the future...

Dr Airil’s on Numerical and Mechanics


DR AIRIL’S ON NUMERICAL AND MECHANICS

This is the collection of videos by Dr Airil discussing various sub-topics of numerical methods and computational mechanics but presented in the simplest and fundamental ways.

Happy watching and learning.

Dr Airil Yasreen Mohd Yassin
Past President of MSNM,
Associate Professor, Heriot-Watt University Malaysia.


1

Differences
between
FVM vs FEM

DIFFERENCES BETWEEN FINITE VOLUME METHOD (FVM) VS FINITE ELEMENT METHOD (IN REPLYING TO DR SYED IDROS QUESTION)*Correction: at minute 16:48, I said that the gradient of phi can be taken out from the integral because it is an evaluated value. No, this is not reason. The actual reason is, if we assume that the gradient is constant along the side, then we can take it out from the integral. In other words, since the gradient is assumed to be constant along the side, it will not involve in the integration and can be taken out.In the last MSNM live session conducted by Dr Hazmil, Dr Syed Idros has asked a very good question that is, what are the differences between FVM and FEM. Dr Hazmil Syahidy Azis did give an answer but due to the limited time and the difficulty of using online platform (to giving detail answer), it was rather brief.But it is a very good question, indeed and it goes very well with the philosophy of learning which I am promoting. I have been promoting that to learn something, we must identify the similarities and differences of that something with other things so that we can see the pattern of argument. Learning is all about seeing the pattern. Once you see the pattern, you will understand the topic at the deepest level, there will be no more confusion and there is nothing you need to memorize. You will taste the knowledge like you taste an apple. You will just know the "taste". So, because of this, I have made this video so that not only I can contribute in answering the question thus highlighting the differences between FVM and FEM, but more important, is to highlight that, identifying the similarities and differences between subject is the way forward to learn something and everything.Happy watching and happy learning.RegardsDr Airil Yasreen Mohd YassinPast President of MSNMAssociate Professor, Heriot-Watt University Malaysia

Posted by Airil Yasreen Mohd Yassin on Ahad, 5 Julai 2020


YOU WILL UNDERSTAND FEM IN 15 MINUTES BY WATCHING THIS!!!This is a follow-up video but it is still can be watched on its own. In my last video (please scroll down), I have discussed the differences between FVM and FEM. However, Dr Hazmil Syahidy Azis found that, whilst the explanation on FVM basic concept is sufficient, it would be good if the discussion on FEM be extended. Agreeing with such a suggestion, I thus made this video as a follow-up but since it describes in detail the subject matter, I dare to say, anyone who watches this video will understand FEM in 15 minutes!!😲

Posted by Airil Yasreen Mohd Yassin on Isnin, 6 Julai 2020

2

Understand FEM
in 15 minutes


3

Meshless
Shape Functions
and
Support Domain

MESHLESS SHAPE FUNCTIONS AND SUPPORT DOMAINThis is a follow-up video to the lively discussion we had last night in our 6th FB live session presented by Mr Al-Al Akhbar. I did make some contributions to the discussion which I think I need to elaborate further because it was difficult to explain verbally without pen-and-paper. So, in this video, I elaborate further on the points which I have made last night that:1. RBF plays the same role as monomials (thus yet the shape functions)1. The establishment of support domains allows the coupling or interconnection between nodes over the problem domainHappy watching and learningDr Airil Yasreen Mohd YassinPast President of MSNMAssociate Professor, Heriot-Watt University Malaysia.

Posted by Airil Yasreen Mohd Yassin on Jumaat, 10 Julai 2020


4

(to be available)


5

(to be available)


6

(to be available)