Melting object

Discussions about the use of Realflow
MrCedric11111
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Re: Melting object

Post by MrCedric11111 » Wed Nov 20, 2019 6:32 pm

I'm stupid to not see the k_volume size :oops:
Ok I put the same resolution and follow your explanation, it works :D
Thank you Christian !

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ChristianZ
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Re: Melting object

Post by ChristianZ » Wed Nov 20, 2019 6:40 pm

I am glad that I could help :P
With this method you will see that you can increase the resolution much more than with the script. The speed of melting you can adjust with the number of neighboring particles.
RF10.5 standard + RFC4D3, Mac&Windows

MrCedric11111
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Re: Melting object

Post by MrCedric11111 » Wed Nov 20, 2019 6:54 pm

Ok I will do this ;)
I try to make long string drop, I do this with "Tensile strenght" or "Surface tension"? :oops:

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ChristianZ
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Re: Melting object

Post by ChristianZ » Wed Nov 20, 2019 7:03 pm

For the "stringy" appearance I have introduced the sheeter daemon that acts only on the molten fraction, the second domain. But I have reduced the age setting of the daemon because wanted to avoid that the mass of the molten material increases too much when it is already on the floor.
RF10.5 standard + RFC4D3, Mac&Windows

MrCedric11111
Posts: 21
Joined: Sun Sep 16, 2018 10:44 am
Location: France

Re: Melting object

Post by MrCedric11111 » Wed Nov 20, 2019 7:20 pm

Ok, I will learn this, and testing some change to see how it apperas,
thank you again Christian :P

MrCedric11111
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Re: Melting object

Post by MrCedric11111 » Mon Nov 25, 2019 9:38 am

So I’m still working (learning) on it.
I’m tring to make thin and long drop, seems difficult to achieve, maybe impossible?
I saw in another post that it is a non certain way to do it with realflow... :o
viewtopic.php?f=72&t=11531&p=55409&hili ... ils#p55409

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ChristianZ
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Re: Melting object

Post by ChristianZ » Mon Nov 25, 2019 11:53 am

There are many possible variation of parameters, sure, but what is the goal in the end? And that determines the solver to be used (sph, viscous, semi-viscous, elastic). If it should be a natural substance then looking at video footage of such a phenomenon could help (lava, liquid iron etc.).
RF10.5 standard + RFC4D3, Mac&Windows

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ChristianZ
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Re: Melting object

Post by ChristianZ » Tue Nov 26, 2019 8:40 am

Ok, I made a quick re-simulation and render of that "tendril dropping" scene: https://youtu.be/8GKH05OhDLo

The tendrils form nicely with the sheeter filling in Dyverso PBD particles, but it is at this stage not really a viscous simulation. What is especially missing is the thinning and stretching of a viscous material. So, a different solver has to be used for this in my next experiment....
RF10.5 standard + RFC4D3, Mac&Windows

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