I am working on a project where water needs to be sprayed so to form 60 deg full cone from the spray nozzle in an animation. I have tried it with inflow and v cylinder but when water leaves out it does not exapand to 60 deg as required. Can you please give m advise how to achieve that? I have done hollow cone spray with addition of obstacle but need full cone spray.
Examining the subject at hand, it appears a better way would be to use particle drops instead of a fluid system.
The resulting cone can be easily controled.
The movement can be setup convincingly.
- Create an emitter object. Since we'll use the normal as emission, the concavity of this object will determine the outcoming angle.
Add a subdivision surface modifier so that the normal direction won't appear stepped.
Create a density weight group, in case you want more water to be emitted from the center.
- Add a particle system. Since particle don't have substeps in Blender, we need to increase the frame rate. I used 240 fps.
- Enter the vertex group as density for the emitter.
- Decrease the gravity value, since we have a faster frame rate. To make the emitter use the subdivision modifier, check Use Modifiers. I use about 15000 particles in a short burst from frame 1-80.
- During that burst, I want the particles to have more speed around frame 40 and less at the end. Hence, I animate the Emission value for the normal. I also added some random offset to fight the missing substeps.
- Create a cube and smooth subdive it (or use *to sphere). Use it as the particle object. Add some children to each particle. There should be lots of drops.
- In the compositing add vector blur. As a material I mixed Glossy and Refractions BSDF.
Sorry, the file is not in the finished state. Have fun.