What is Computer Simulation? Simple Explanation for Non-Engineers

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What simulation engineers are actually doing?

It’s been many years since that first spark to become an engineer came to me

So… What do engineers do?

I now have a very simple answer for that actually

(But as usually, simplicity sometimes just hides complexity behind a curtain)

« Engineers build stuffs »

By stuffs, I mean complex systems.

You can argue that people who build simple stuffs like a chair, a pillow or a door are also engineers.

Except that their job is less technical and more artistry or skill. If you know how to cut some pieces of wood and fix them together, you can build a chair, not need to know about maths and physics.

What kind of complex systems engineers build?

The world is huge and almost everything can be seen as a system.

Just look around you at the objects you use every day and you will have already some ideas:
- Your computer
- Your Car
- Subway and Public Transports
- The electric network in your house
- The electric power plant that supplies the electricity
- All the domestic appliances you own
- etc…

And those are just the domestic product for your own usage.

Now think about what a power plant or a factory would need in terms of systems to work.

Because that’s the thing about systems, they can be broken down into sub-systems

Think about the components of your computer (The processor, the GPU, etc…)… and how each of them can also be broken down into essential parts that makes them work!

Engineers are people who are in charge of understanding how all of those systems work, how to operate them, how to change and improve them, how to design and optimise them, etc…

Read more about this on my blog:
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Simulation is indeed very important. But imo what's even more important is the ability to interpret if the results are accurate/make sense, and not just admiring some pretty plots.

tennisfreak
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Great video. I have over 10 years of FEA simulation career and the matrix is still one of my big motivations 😂

tkoyama
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That's a quite nice explanation, thank you for the video

bugracakar
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Great video. Nice overview. Merci et salut de l'Allemagne.

xaverpfk
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thanka a lot sir. well explained.. good. job

carlocarlito
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Super nice explanations, keep it up! :)

DrSimulate
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Good explaination about computer simulation.

sidharthsankartudu
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I thought of pink colour and it appeared to me infront of me. This has happened many a times. Even when I have thought of different colours they appeared infront of me in terms of clothes, things, etc. Is this simulation? Please be in touch with me as I want more answers.

rishabhkumar
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Good afternoon sir. I like to know about simulation in order to be able to apply it to research work

oyelekeoyebode
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Please explain this "Quantum mechanical simulations and ab-initio for solid state systems"

hafsakhalil
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Any idea on how can we simulate lidar data for autonomous vehicles using deep learning?

vivek
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Nice video, but 90% of what you say applies nonly to finite element simulations.

Whether simulations are not made by engineers and their aim is not to help design things for example.

giacomorossato