【Blenderシミュレーション】流体シミュレーション

こちらは「Blender」による流体シミュレーションについての記事となっております。

Fluid Parameters

Fluid | Domain | Settings
Domain Type	bool [default] None	Create domain for liquids
Resolution Division	int [default] 32 [+] quality up, longer time [-] quality down, shorter time	Maximum Resolution Resolution used for the fluid domain. Value corresponds to the longest domain side (resolution for other domain sides is calculated automatically).
Time Scale	float [default] 1.0 [+] speed up [-] speed down	Adjust simulation speed.
CFL Number	float [default] 4.0	Maximal velocity per cell (greater CFL numbers will minimizr the number of simulation steps and the computation time).
Use Adaptive Time Steps	bool [default] True
Timesteps Maximum	int [default] 4 [+] quality up, longer time [-] quality down, shorter time	Maximum number of simulation steps to perform for one frame.
Timesteps Minimum	int [default] 1 [+] quality up, longer time [-] quality down, shorter time	Minimum number of simulation steps to perform for one frame.
Using Scene Gravity X	float [default] 0 [+] right [-] left	Gravity in X direction. (Available when Scene Properties/Scene/Gravity: False)
Using Scene Gravity Y	float [default] 0 [+] forward [-] back	Gravity in Y direction. (Available when Scene Properties/Scene/Gravity: False)
Using Scene Gravity Z	float [default] -9.81 [+] up [-] down	Gravity in Z direction. (Available when Scene Properties/Scene/Gravity: False)
Delete in Obstacle	bool [default] False	Delete fluid inside obstacles.
Bake Data	Button	Bake Fluid Data.
Border Collisions	bool [default] True	Enable collisions with front domain domain border.

Fluid | Domain | Liquid
Simulation Method	FLIP, APIC [default] FLIP	FLIP: Use FLIP as the simulation method (more splashy behavior) APIC: Use APIC as the simulation method (more energetic and stable behavior)
FLIP Ratio	float [default] 0.97 [+] bigger splash [-] smaller splash	PIL/ FLIP Ratio. A value of 1.0 will result in a completely FLIP based simulation. Use a lower value for simulations which should produce smaller splashes. (Available when Simulation Method: FLIP)
System Maximum	int [default] 0	Maximum number of fluid particles that are allowed in this simulation
Particle Radius	float [default] 1.0	Particle radius factor. Increase this value if the simulation appears to leak volume, decrease it if the simulation seems to gain volume.
Sampling	int [default] 2 [+] more particles [-] less particles	Particle number factor (higher value results in more particles).
Randomness	float [default] 0.1 [+] randomness up [-] randomness down	Randomness factor for particle sampling.
Particles Maximum	int [default] 16	Maximum number of particles per cell (ensures that each cell has at most this amount of particles).
Particles Minimum	int [default] 8	Minimum number of particles per cell (ensures that each cell has at least this amount of particles).
Narrow Band Width	float [default] 3.0	Particle (narrow) band width (higher value results in thicker band and more particles).
Fractional Obstacles	bool [default] False	Fractional obstacles improve and smoothen the fluid-obstacle boundary.
Obstacle Distance	float [default] 0.5	Determines how far apart fluid and obstacle are (higher values will result in fluid being further away from obstacles, smaller values will let fluid move towards the inside of obstacles). (Available when Fractional Obstacles: True)
Obstacle Threshold	float [default] 0.05	Determines how much fluid is allowed in an obstacle cell (higher values will tag a boundary cell as an obstacle easier and reduce the boundary smoothening effect).

Fluid | Domain | Settings | Resolution Divisions

Fluid | Domain | Settings | Time Scale

Fluid | Domain | Settings | Timesteps Maximum

Fluid | Domain | Liquid | Simulation Method

Fluid | Domain | Liquid | FLIP Ratio

Fluid | Domain | Liquid | System Maximum

Fluid | Domain | Liquid | Particle Radius

Fluid | Domain | Liquid | Sampling

Fluid | Domain | Liquid | Randomness

Fluid | Domain | Liquid | Particles Maximum

Fluid | Domain | Liquid | Narrow Band Width

Fluid | Domain | Liquid | Threshold

Fluid | Domain | Liquid | Viscocity