Burning liquid

[MANUEL_MOUSIOL]

I still really new to PhoenixFD and I had this idea of letting a liquid (like gasoline) splash onto a flame and let the whole thing burn up.
Is that possible?

Whenever I turn on liquid, all of the sources will become water. I need water and fire in the same simulation, but then turn water into a flammable substance.

Any ideas are appreciated. Thank you very much!

[tsetso]

You can have this done by having two sources and one grid only.
For the gasoline, just make the source emit Fuel and Temperature (with value of 1). This will make your Fuel behave as liquid.
You also need to check the "Enable burning" option under Fuel tab of Phoenix grid.

Then you just have to add one more source, that emits fire.
When you bring them close enough the fire will ignite the fuel.

[Ivaylo Katev]

yes it is.
until 2.0 we had the idea to simulate the liquid and the fire simultaneously, allowing the fuel channel to be a liquid. however this was a bad idea and the simulations were not realistic for some fundamental technical reasons. after 2.1 we abandoned this idea, and now you have to simulate it twice, first pass for the liquid, second pass for the fire, using the first pass as source.
- create a simulator and set it to be liquid (check enable in liquid panel)
- create the liquid source (PHXLiquid)
- simulate
- create second simulator and overlap it with the first one.
- create a fire second source ( PHXSource ) and select the first simulator to be target object
- simulate
don't forget that after the entire procedure you decide to resimulate the liquid (the first simulator), the second simulator must be removed (or excluded from interaction), otherwise it will disturb the simulation. in the above described sequence when you simulate the liquid, the first simulator is still not existing and is not a problem

[MANUEL_MOUSIOL]

Thanks for the help!

I have to test Ivaylos suggestion - I tested (but just in viewport, didnt render) tsetsos suggestion and it looked like burning liquid.
But I guess when rendering the liquid wouldnt appear as liquid and thats why Ivaylo is suggesting two simulations?

I hope in future releases, you can automate these things as it sounds kind of complicated.

I will check it out! Thank you!

[Ivaylo Katev]

in the tsetso's model the fuel is a cold gas, that behaves similar to liquid, but not exactly.
if the result satisfies you, this is the easiest way. my siggestion is harder to setup, but it uses real liquid simulation

[MANUEL_MOUSIOL]

I see! Thanks for the clarification!