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Unfortunately, I haven’t got time to write documentations and tutorials. Hopefully, I will be able to do those in the future.
When you right-click on the view and open Model Properties, you can set the gravitational acceleration in the Particle tab. If you set it to 9.8 m/s^2, then you model the vertical situation. If you set it to 0, then you model the horizontal situation. Any other value can correspond to other planets or within a spaceship.
This is not an easy question to answer. Not every 3D problem can be reduced to a 2D model. It is basically a case-by-case thing.
Sorry, you can’t.
If you failed in installing it on Linux, try to download the Raspberry Pi package and unzip it. And then run the energy2d.jar file.
Yes, you can. Just set the dimension of the simulation box to the micro meter scale. See the attached screenshot. Don’t forget to also reduce the time step. A smaller time step is required for a smaller length scale.
- This reply was modified 1 month, 2 weeks ago by Charles Xie.
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The ray simulation in Energy2D is meant to be educational. Use it only if you are looking for qualitative results. Hope this helps.
Thanks for your interest in Energy2D. The simulation depends also on the boundary. A flow that is stable in a small box may not be in a large box, vice versa. I will take a further look once I get some free time.July 12, 2019 at 11:54 am in reply to: Simulation of foam insulated hot water pipe system #273
I looked at your model and I don’t know what is wrong. Can you elaborate?
Many users have requested supporting a material library. Unfortunately, I have very limited time and I am maintaining this software in my spare time. It is not funded by anyone since about five years ago.
Hopefully it will continue to exist.June 7, 2019 at 4:26 pm in reply to: Convection and conduction in water – lake heat exchanger #264
I can reproduce your problems. Not sure if this is caused by a huge distortion of the grid cells (400 times larger in the horizontal direction than in the vertical direction). I will keep looking.
Expanding the grid size would cause the simulation to slow down by N^2. So this is currently locked. But I agree there should be such an option in the future.
That is right. Since the computational grid is 100×100, you can’t set the size of a component below 1/100th of the size of the window. If you could, it would be ignored by the engine.
PS: Don’t forget to set the time step to be small to be compatible with the micron scale. Otherwise you will get a fatal error.