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Questions tagged [fluid-simulation]

Questions about the Fluid simulation systems in blender. Blender has two systems for simulating liquids, a SPH (Smoothed Particle Dynamics) system integrated with the particle system, and a Lattice Boltzmann method which can be used create a variety of simulations.

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0answers
331 views

Floating objects in a physically correct way

How can I float an object in a fluid? For example I have a fluid container and a ball placed in it. Then filling the container through a pipe with fluid and I want the ball to float based on its size ...
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1answer
32 views

Fluid sim silently fails at high resolution

When I push the resolution of my fluid sim to say 300 or more it will run for a while - about an hour then just quit, no errors. The remaining frames are not simulated and the domain turns back to a ...
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1answer
419 views

Make an object into a fluid

i am trying to make a fluid simulation of a metallic text melting to the floor and doing...you know, do what fluids do. My issue is that if i make the text a fluid and bake it, the shape gets ...
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0answers
1k views

Adding Add-Ons to Blender 2.8 Manually

I want to fill a glass with water and smash it. Fracture ADD-On unavailable. Need Alternative or a way to add it in 2.8 I just started in 2.8 but looks like the fracture add-on is unavailable. Is ...
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1answer
70 views

Fluid animation timings

I want to make a short animation, of which one part is a drop falling and hitting a surface. Now I want the animation to begin at 300th frame and since I am using the default 24 fps, the start is at ...
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1answer
526 views

Fluid simulation leaking through obstacle

In this project, water is leaking from the walls of the waterwheel and it doesn't look realistic at all. I tried so many possibilities but nothing worked. please help me to make the water looks ...
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0answers
128 views

How can i export the liquid physics in Three.js?

Please Let me know any format which helps in exporting physics
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0answers
41 views

Make Fluid Invisible for amount of time

Hellow, short question: How can i make the Fluid domain invisible for specific duration? I started the fluid simulation on frame X so i need to get rid of the cube for the first X frames. Im using ...
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0answers
58 views

How to inject fluid into a mould?

This is the mould I made by designing the required component in CATIA, converting it into .stl format and importing it into blender and boolean operations on cuboid.(https://i.stack.imgur.com/OvBEM....
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0answers
27 views

“Deform” metal in a thread-forming animation [closed]

I'm a Blender noob, hoping to use the tool to animate the type of fluid deformation that occurs when a tapping tool forms threads into metal. I've found this inspirational video that closely ...
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3answers
264 views

Blender fluid simulation “with drag” (simulating a pump)

I need to do a fluid simulation, where the fluid goes through a pump. The pump-model is build the way, that the intake is at the bottom and the output is at the top. I need a way to get the fluid all ...
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1answer
188 views

Cannot run simulation for smoke and fluid

I've been trying to render smoke and fluid simulations, but can't manage to get the results I'm seeking. The first problem is that the smoke and fluid don't simulate. The second problem is that the ...
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1answer
534 views

Is it normal to wait 50 min for baking a “simple” fluid animation?

As said in the title, is it normal for this to take so long? I have seen in this video it takes this guy seconds to bake (video: https://youtu.be/xIxUZpRk4Ac?t=147), he stated that he had a GTX970 but ...
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1answer
322 views

Fluid simulation sticking through mesh

I'm having an issue with my fluid simulations. I'm a beginner, so I might be missing something obvious. I'm trying to fill up a cup with water, but the liquid is behaving very strangely (see below). ...
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0answers
39 views

The fluid in my scene is not simulating

I am making a fountain and I would like the water to flow from a gap in the chest of a statue to create the illusion of blood flowing from a wound. However, the fluid simulation is not working. I have ...
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1answer
3k views

How do I enable Mantaflow in Blender?

I have been using the internal Blender fluid system for a while now and it has been very frustrating so I'm hoping it'll be better with Mantaflow. How do I enable Mantaflow in Blender?
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0answers
54 views

Accurate modeling of a sessile drops (like dew droplets)

Is there some relatively easy way to generate drops, like dew, on a given object/scene? I'm interested in some kind of real simulation of fluid-surface interaction (would like to specify surface ...
5
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1answer
255 views

How to enforce planetary gravity on fluids?

I'm trying to make a scene with a few small planets, but when I went to make a lake/river I couldn't find any options to have the fluid's gravity be relative to a point (aka the planet's center). I've ...
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1answer
259 views

How to add floating particles to a fluid simulation?

I am trying to make a simple fluid simulation in Blender with floating particles in the fluid. I was able to create the fluid simulation, with materials and shadings to works. But I am having problems ...
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1answer
160 views

Fluid Simulator: odd behaviour. Cache problem?

First of all: I am new to Blender. I installed it today. After a few basic things I wanted to try out the fluid simulator. The first simulation worked fine, just like in that tutorial. The simplest of ...
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1answer
237 views

How to make Daredevil dripping wax using liquid simulation [closed]

so i was wondering if anyone knows how to go about recreating the dripping wax effect as seen in the intro in the Daredevil show. Check out the intro: https://youtu.be/KFYFh8w4758 if anyone know i ...
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2answers
148 views

Flow water from one Object to Another

I'm fairly new to Blender but have done a fair few tutorials and starting to get my head around things. I've recently watched a Tutorial on Water Physics and had no issues following along and have ...
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0answers
121 views

fluid leaking through obstacles

I'm a beginner to blender, so please ignore my mistakes and be kind enough to guide me through this :) I've scene this question before, but never got a satisfactory answer. I'm working on two ...
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0answers
31 views

Fluid simulation wont bake with obstacle object and it shape

I have to main problems and that is | 1) the Fluid simulation doesn't work in obstacle 2) and even I removed the obstacle it won't take its shape of circular https://www.dropbox.com/s/...
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1answer
485 views

Water flow looks like drops

Im a beginner to blender, so some settings are a bit confusing to me, please be kind enough to guide me to sort out this issue. In this animation, I cannot generate a water flow which looks realistic....
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1answer
166 views

Is the physics engine capable of reproducing this effect of a ball oscilating due to a water jet? [video] [duplicate]

So I have this video: https://www.youtube.com/watch?v=yq_qSWZDHHk I'm wondering, is it possible in a scene to add a water source on top and a rigid-body ball on the floor, and with the correct ...
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0answers
67 views

Chunky Fluid in Fluid simulation?

Is it possible to have "chunky" fluid in a simulation? I have been playing with adding particles, with a fluid simulation as the emitter, and not getting results I am looking for. The fluid simulation ...
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0answers
34 views

Weird dotted pattern in fluid simulation

I tried to simulate honey spilled from a bucket. The problem is that there is a dotted pattern on the simulation. What is causing this and how to fix it? The result: My settings:
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1answer
1k views

Blender MantaFlow … no visible result!

Im really wondering why the MantaFlow branch does NOT show me anything. What I mean ... I made a simple cube as a domain, than another one as an obstacle and finally a sphere as a flow. Leave the ...
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0answers
223 views

The drool simulation

Can you tell me how to make the drool simulation like here: https://youtu.be/gR2OhFLkLM0#t=5m6s? Fluid simulation doesn't give sticky effect, it's just water. I tried to stretch mesh using softbody, ...
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2answers
143 views

how to approach making these granules?

Ok, so I have to make this product in 3D, Im fine with modeling and texturing the container, what Im not sure of is how to approach the granules inside the container, its almost like a rough sand/ ...
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0answers
88 views

Fluid leaks even through two thick obstacles

In short: My moving obstacle leaks all the fluid that it's supposed to hold. I have tried tens of changes in the parameters (and all the solutions to similar questions), but it's not going to get ...
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1answer
161 views

How to make physical simulation of unmixable fluids (like oil and water) in any container

I wish to make an animation of pouring water over oil or vice versa. In physical simulation, how do I make oil thicker than water and make both liquids behave realistically when stirred and left to ...
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0answers
58 views

Imported Alembic (Animated mesh) I need it to have same # of vertices for fluid sim

I am working on a project where I plan to have multiple fluid sims running, I am having problems with my imported animated mesh, where each frame has different number of vertices. (This has previously ...
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1answer
66 views

Fluids simulation went crazy

I have a problem with fluid simulation. The project is pretty simple, I have just a domain object and an inflow object. The inflow object is supposed to start drop oilish fluid at frame #1100 and ...
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1answer
359 views

Speed of baking fluid simulation slows down drastically

When baking a fluid simulation the process slows down. The simulation has object of type inflow and object of type control. The speed of baking will go down from rate 1 frame/min to 0.06 frame/min ...
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0answers
45 views

Using a Character Mesh as a Fluid Obstacle

I'm trying to use an imported character mesh as a fluid obstacle. The only way I can get it to actually act as an obstacle is to select "Export Animated Mesh" in the fluid obstacle settings. (...
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1answer
71 views

Domain stays a cube when baking?

Whenever I bake my domain, it stays a cube. It does work when the fluid object is outside of a hollow obstacle I've placed it in. I've recalculated the normals, and tried resizing the domain, but ...
3
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1answer
381 views

How to make water wall effect?

Go you have any ideas how to make this sort of an effect? I've tried to achieve this using water simulation, but it didn't turned out well. Using a texture looks like rational, but I have no idea how ...
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1answer
137 views

Blender Compressibility Unit Question

What is the unit of compressibility in Blender?
6
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1answer
635 views

How to make a water vortex

I'm very new to Blender and I'm trying to make a water vortex like this.(may be not the easyest first project for a newbie) I watched several tutorial on liquids particle etc but I'm not sure what ...
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1answer
199 views

Obstacle on path does not interact with fluid

When I animate the obstacle with keyframes and in the animation the obstacle goes through fluid, it interacts. When I do the same with obstacle following the path, it does not interact. Am I missing ...
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1answer
416 views

How to create a rope [duplicate]

I have a buoy on the surface of a fluid simulation that moves around. It has no Rigidbody attached, only a few rotation and location constraints which should cause no problem. I am wanting to create ...
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0answers
157 views

Fluid is not coming out of the inflow

I am trying to make fluid come out of its out flow like a hose but for some reason the fluid appears in random places and drops to the floor instead of coming out of the out flow How do i make sure ...
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1answer
254 views

How to create a solid stream of liquid?

I'm new to blender and I want to create more things with the fluid simulation but it's not coming out like a faucet, instead it comes out in these globs is there a way to change this? P.S: I also ...
4
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1answer
415 views

Liquid simulation sees obstacles' rotation correctly but not their location

I'm having a problem with a simulation, where an obstacle and an outflow are being moved by a parenting relation to an empty, and some fluid should be interacting with them. The obstacle is a glass-...
4
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2answers
291 views

Why puddles instead of water flow?

I was following this tutorial. I created: circle as water source, pool, domain. I selected Cycles Render; Objects have following settings: water circle: fluid type - Inflow, Volume - Shell, y = 1; ...
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0answers
35 views

How can I create a dip molding process in Blender?

I want to create an animation including something similar to dip molding process: An object goes inside a highly thick/viscous liquid and comes out. Some of the liquid sticks to the surface and then ...
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0answers
67 views

Problems with Fluid Simulation baking / cache

Recently today, I created a fluid simulation. I baked through it a few times, updating the settings to get to what I wanted. I reached a desirable effect. Then the fluid simulation baking stopped ...
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0answers
33 views

Fluid domain dimensions are different in Edit mode from Object mode

I am building a beach scene and have a strange thing happening to my domain. Basically the domain dimensions are different when I switch to edit mode. I think I scaled the cube once it was a domain, I'...