Fluid Simulation: Which tank will fill up first? [Blender FLIP Fluids + Cycles]
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- čas přidán 31. 05. 2018
- When the FLIP Fluids addon was on sale on blendermarket.com a few days ago I decided to buy it even though Mac and Linux support is experimental. (I only use Mac and Linux for my 3D work.)
Nevertheless my experience was pretty good. I started this simulation on a Windows 8.1 machine copied it over to my iMac with macOS High Sierra and continued baking. (The fact that you can pause baking is awesome!)
Then I copied the simulation to my rendering machines, which are running Debian 9 Linux. That didn’t work that well - the simulated water was displaced and I haven’t figured out why yet because I was running out of time and wanted to keep this video on schedule.
But overall I’m very impressed with the addon. It’s really efficient comparing to the default fluid simulator in Blender. This simulation is baked at a resolution of 800 using a bit over 8GB of ram on a Windows machine. For a 860 resolution simulation with Elbeem I needed nearly 100GB of ram.
Music: On things to come by Eric Matyas from www.soundimage.org - Krátké a kreslené filmy
![Particle fluid. Elevator. Simulation [22]](http://i.ytimg.com/vi/9MvYM_yA8Gw/mqdefault.jpg)
Why did you end the video when none of the tanks were full yet?
(spoilers) Maybe it's because it was completely certain that H would fill up first, or they didn't want to show the enchantment that would rapidly fill up I.
Actually J wins
well, H kind stopped filling up
Just get over it lmao, H is the one and only.
I voted c
The question depends of the flow rate into A. You bump that inflow up to 1000 Gal/s and A will fill up pretty fast.
@Christopher Heltz then you need to ask the question, is the container made from a material with an ultimate strength high enough to handle the pressure exerted by the fluid. Also, what is the density, specific gravity, and viscosity of the fluid? Not to mention is it under STP?
A poorly thought out question if you ask me.
@@Andrew..J *_Hit em with straight facts._*
A has the same pipe that leaves A though so if A has a bigger inflow then it will have the same outflow
the only thing I am upset about is it cuts off before the entire screen is filled up like I wanted to see it spill on the floor out of the first filled container and slowly fill up
@@YumekuiNeru not necessarily. The rate the fluid would leave A is dependent on the pressure exerted by the fluid downward, even if the pipes are identical. So as the fluid level went higher in A, the pressure would increase, and the exit flow rate would increase as well. Which brings back the importance of the input flow rate.
I may not be able to get an actual job with my engineering degree, but at least I can question the logical integrity of internet memes.
if one is also accounting for pressure etc then I guess that is fair
G is blocked. cheating
In the original riddle it was blocked so it tricks people who didn't look close enough
It's not cheating. That's the point.
@@toastedperfection2488 Woooosh
No, D is
@@Graph06 Whooosh for the original comment
Before watching: I think G...
After watching: Seriously?
Zucth same
Yeah same
Make it a ten minute if you have to, don’t leave us hanging
Your problem for not seeing right
@@unalguien1347 now now, nobody can blame anyone for missing a millimetre line.
G....
Wait how did i not see the blockage there.
H.
AJ Lord me too my answer was g
Because the thumbnail shows no blockage while the actual video shows a blockage...
@@jbone8327 check again
@@faris110 I feel so dumb lemme stoo talking...
@@jbone8327 lol it's not a big deal dude
That's just mean. If D wasn't covered then G would have won.
I’m_Dank_Don’t_Judge Covering D wasn’t mean
Just Challenging
Well sure, but if A didn’t have a hole than A would have won.
No, G cannot win becuse of the fact that water is always level. To fill up G, every other box below G must therefore be filled before G can be filled.
@@jmw8403 G has nothing below it.
@@jmw8403 Look closely. If D wasnt blocked, J will not ever receive even a drop of water
Is this an anime plot twist?
NANI?
"Top 10 Anime plot twists"
Indeed
Yes
@@uniquegames1237 I think we're on "Top 1746292 Anime plot twists" now.
H of course, since D is blocked. But the thing is the water is passing out slower then it comes in by J and C So to figuere it out, it should fill and unfill the same intensity.
So basically what you're saying is "they cheated"? Lol.
It’s because once H gets to a certain point (1:47) it fills up at half speed because it’s at the same height as J
"Unfill" drain* you meant, probably.
@@Brabentris it is not the same height as j at all
Im pretty sure its J. Because H would fill up slower when it reach the same level as F.
Before I watch this, I think it's G.
Edit: wow bud that was cheeky who would notice that little thingy blocking it off?
My fuckin ass lol
I saw it lol
It should’ve been G
Wormcake Studios There is no way to get to it
Why? It shouldn't have.
@@toastedperfection2488 it is though if you look closely it was blocked from the beginning to trick people
@@egg7491 why are you telling me this? I know. That's what I was saying.
Thank you. Now i feel like a total idiot :v
Press H to pay respects
G
I
J
K
L
G.. Nope H will
i chose H cause it dosent leak out
F, and K doesnt leak out either
Bs
D is blocked. Not fair
It's very fair
it isn't fair. not only does the line overlapping D's tube look irrelevant by the fact that the entire thing looks like it was dragged out of mspaint, but it also undermines the challenge it had originally proposed, by turning the actual answer into nothing but a red herring.
Hell, if you erased D G and E entirely, i'm sure 95% of people watching this would immediately bet their money on H without thinking about it at all.
@@NerdOracle... you haven't seen this before have you? The reason this video was made is because this picture has been floating around Facebook for years and the creator was just showing actual fluids going through the model. The most common thing people overlook when picturing what container would fill is that block, and then when it's pointed out to them they all pretty much agree it's something they overlooked not the puzzle creator cheating.
no, i don't use facebook so this is my first encounter.
and frankly, i don't care how other people react to the realization that D G and E aren't actually relevant to the question.
I just came here out of curiosity towards the opportunity to test my understanding; and then got a prank instead.
@@NerdOracle is that what you call all puzzles and riddles?
I've seen a whole lot of pictures asking this question, so I already knew what the answer was.
I actually was interested to see how you managed the best simulation of this scenario I've ever seen in my life.
I wish you best of luck, and at least a million more subscribers! This animation is too good and too smooth! Beautiful work mate!
This is the type of videos that i love it!!
No way for G,D,E
Most people who are disliking don't understand the point of these tests. They are supposed to make you think. Why would they give you such as easy way out? The point of the test thing is to see if you pay attention and have to think about it. The blocked wall is in all of these tests.
I just wanted to see the real awnser without tricks, I didnt care about guessing it myself.
But the results here are fake because its staged. Lame.
It's a bit hard to see that feature on a smaller screen.
I thought the point of the test was to check your understanding of fluid physics, not to deceive you by putting in random blockages.
For example, I thought K and I would fill first before any fluid even got to L since the open channel to box I was at a lower level than the opening to box L; clearly I did not anticipate how much effort was required for fluid to climb the channel of box I and that the amount of fluid pouring into box J was fast enough for it to build up and spill over into box J, H, and F before a drop even made it to box I. THIS made me think.
Putting random blockages tests nothing of your understanding of fluid physics.
i agree with SadFace. especially considering I had my money on G from the get go
G could not have won even without the blockage. This is becuse of the fact that water is always level. To fill up G, box H must therefore be filled before G can be filled. This is like first grade physics.
for those who are new to this video, this is an eye test, not a physic science test. Make sure u wear ur glasses and watch this on an 16k monitor.
yep
Wow i can't believe that many people were that blind and can't see the blocked passage way. And then get salty that they got it wrong.
So which one got filled up first?
Either J or H.
H, even though it's a legitimate question as the video stopped when they were roughly at the same level. The title should be interpreted as "Which tank will fill up to the brim first".
idk h?
★ Technomancer's Museum Of Mediocrity ™ ★ H, water is leaving J at the same rate it is entering.
Green Jelly Bean how is H not gonna be filled up first? That’s the lowest point as is F after a few seconds. They will both fill up at the same rate (half the starting rate), but eventually H will fill up completely first then will overflow
Why was there none going from C to D?
This is based on a quiz I saw on the Internet. In the original the path from C to D and the path to H were blocked to make it a bit harder, I think.
In my Video the path to H is open because I forgot to block it and only noticed that after simulating the fluid. :-D
Nolan Yee it‘s blocked in D
Because it's blocked. -_-
D is blocked stupid ass
MSC Simulations & Animations
You backstabber!!!!
I really like how you did the background where you've made the containers' outlines and identifiers. It got me to thinking of an alternative method, less labor intensive which would be to turn on Freestyle. I did a test with the cube and added a ground plane of a flattened cube spread out to 4 meters. The cube had for its material the Transparent shader, fully transparent. Turn on Freestyle in the Render tab. In the Render Layers tab where the Freestyle settings are, in Freestyle Line Set I had to change Selection By to Group, and put the cube in that group (I left it named Group). I could have sworn that in a previous test I had Selection By set to Edge Types and had only Crease checked but today that was also outlining the ground plane.
Thanks! I actually created the outlines first by just extruding a plane and used this mesh to create the obstacle for the simulation. So it was a bit of work but I could reuse it for the obstacle which I had to model anyway.
But thank you for your tip, I think this could come in handy for me some time as I like to do things like this as mesh rather than creating a texture. (Using mesh is faster than overcoming my laziness and practice creating textures :-D )
Well it depends on the pressure, and the size of the the last split, if it's thin enough the water might fill F before H get filled, all assuming the fluid is water
Who else thought G without looking properly and only realized- ‘oh wait-‘ when no liquid fell into it, so you went back a few seconds da and really looked and saw the barrier?
Like if you did ;)
Edit: Most likes I’ve ever got thanks people!
I did and I hate it
I did nat..
Its bullshit.. I did nat hit here.. i did nat.. Oh Hi Mark
Sorry
Oh you monșer
I noticed it, but I'm not liking your comment because no one tells me what to do.
DAE LIKE MY COMMENT
Why is J still going up?
Because water can flow in easily
It can only rise as far as the highest inlet is, considering that it will never stop draining liquid (unless you pump fluid in faster than the tank can drain it, but that's cheating). This is why H fills up first: it is below all the other tanks (communicating vessels), and there is nowhere for the fluid to go but up.
"Fluidynamics" [=8
+Vikrinox
Everything except "preasure".
Maybe you meant _pressure._
No problem; those keys (a and s) are right next to each other on the keyboard [=8
L will fill up first. Pressure isn't enough to push the liquid towards H since the point of entry is on the lower part, while F's entry is from under. So, by the laws of physics, it will be L.
Loved the ending
People do y'all really not see that c is blocked from d
Not from my video.
There is a barrier from c to d. Look close.
For those complaining that D is blocked, that’s the whole point. I analyzed the thumbnail and made my guess before watching. The fun part is seeing whether I’m right.
I need more of these
g
edit: just now I saw the barrier. it's h, i gess now
edit: I think I got it
Before video: H
Yes! I answered H but you have to assume that the flow rate is equal the rate that fluid leaves the tubes.
You left us on a cliff hanger
For all the people who got baited by D/G, you should have realised that the flex seal they put over that pipe was too good.
This is more of a paying attention test
Me before watching the video: G is the answer
Me in the mid of watching: OH FUCK OFF. THERE'S ALWAYS A TRICK QUESTION!
RIP G and everyone who thought G would filled up first
What a D-blocker.
The one thing people didnt notice is the pipe connecting C to D was closed.
To the people that is mad because of him blocking the path between C and D
It’s not mean
It’s not cheating
There was a barrier between C and D in the first place and in the thumbnail it’s still the same
Even worse there are some people that comment without noticing the barrier so IMPROVE YOUR EYESIGHT B-
If it wasn't for the blockage to D then G would have been the first to fill up. That being said as the experiment stands H will be the first to fill.
Amazing
It's always been an assumption that the flow input is low enough that you don't overload the flow rate possible through the connecting pipes. Plus that little blockage is usually in these tests.
FINALLY A RIDDLE WITH AN ANSWER
Am i einstein ? I fking knew that D was a trap
If it wasn't a trick, it would be G. But, since it is, it'll be either K or H.
Depends on what fluid you use :-)
When you make the riddle like the picture "H" has to be blocked too😎
I was expecting J but it turns out to be H the winner damn
Called G at first because I didn't see the entrance to D was blocked. Then called H which is what seems to be happening
G because all tomb directly
Nice mind trick.
Excuse me, why did you block off D?
I got fooled! You fooled me. Not until now did I realize the pipe to D was blocked. I'm so stupid.
Pretty sure video was cut short because they dont want us knowing *G* would fill first.
G then D, E, H, F, L, J, K, I, C, B, and finally A
Never look back and say
Could have been me
It could have been me
Yeah.
Why is everyone saying that it’s not fair that D is blocked off? Why is no one talking about the fact that A has a hole in it? That’s so unfair. If A didn’t have the hole, it would have won.
By physics the lowest container has to fill first
It annoys me that more of the comments are about D/G/E being blocked off than about the video not actually showing which one fills up first.
H was also blocked in the original one
For all you folks saying it's mean or unfair for there to be a blockage, it's not. You need to be critical in thinking and analyzing.
I could say the same to you, adding in a line that is invisible to a lot of small phone screens is just ridiculous click bait.
Another line of pixels could have cleared up the issue but instead the just want those with bigger screens to feel special.
@@Zoe.m. It's not. This picture has surfaced the internet for a long time now. It's not clickbait. It's simply a simulation showing how liquid would have passed and the solution.
Haven't watched yet but it's gotta be H right
Calling it now it’s gonna b G
Dammit man
Depending on the speed, it could be A, J, or H.
Left us with no final result...Looked like H was gonna fill up first, but also J
I guessed G from the screencap.
Edit: ahh, resolution was too small to see that D was blocked. Okay... my second guess is H.
Edit 2: Yusss, got it. Thought it might be J for a bit. It was touch and go to see if the inflow could be matched by the outflow from each container.
Luckily i saw that blockage to D. My answer was H
Well, that settles that then.
The problem we see here is, when you say “fill up” do you mean;
• Fill up right to the top and potentially overflow
Or
• Contain the most amount of liquid?
I had this question on a test
I bet you all said G, but it was blocked.
Who won? H or J?
Most people didn't see the block, even myself.
Hmm, I'm not the only one who guessed G and didn't noticed that it's blocked.
I'll admit I was triggered when D got blocked. You sneaky little bastard.
All buckets have same size, and H is the lowest tank, so H filled up first. It could be like that because all tank is connected except ****ing D, G, E. See fluid mechanics.
I feel so blue balled rn
Well that is 2 mins of my life I won’t get back
what an overly complicated solution to a shitty facebook brain puzzle. i love it
depends on the debit of the water poured i think?
Damn ! I was rooting for J
I think it's incorrect. It should be L, because of the fact that it isn't possible that H goes higher than it's supply pipe, because of gravity. Therefore L will be full first
CD is blocked. Is that an error? assuming inflow equals outflow or less, which it looks like it does. the tank with the lowest upper limit will fill up, H. But the height the tubing also follows a similar pattern. So at C for J to start filling up D needs to fill up part the tube height. Before that happens G will fill up, if CD wasn't blocked off.
If the inflow is greater than outflow A would win, probably, especially if its significantly higher.
the path from c to d is blocked, its to trick People's into thinking that g will fill up first
I thought it will be G until found that D is blocked. Then I understood it's H
G is the block the heck
If you know physics this is really easy but guess what - the path to D is blocked off
I thought G would fill up first. Didn't notice the way from C to D were blocked.
Oh well.
I ALWAYS FALL FOR THE BLOCKED TANK!!!!!
All tanks are already full.
The fuck? They ain't done fillin' yet!
My dad sent from a group chat a while back (no liquid, just the tanks) and at first I thought was G. Ten seconds later I'm like wait, D is blocked it can't be G. A few mins later after lots of double checking I'm certain it's H.
H because in this thr unic force on is the 9,8N of gravity
I saw a lot of these things on Facebook and I know the answer easily.
It’s was M
When you realize G was blocked
I cant possibly be filled even one zinoL because LIQUIDS CANNOT GO UPWARDS. We have a little thing we call GRAVITY.
Well none of them filled up at all because the video was cut short. So technically...