One tip: provide scale if possible. Velocity, pressure and temperature are all great, but the viewer doesn't know to what extent

Good to see you back in action. Lovely bullet simulation

Whaou ! The shock waves are impressive !

Damn, that is a lot cooler than I realized it could be

which solver has been used? also which meshing technique is deployed in this simulation?

Beautiful Simulation

What if the bullet is super sonic?

@tao6188

3 жыл бұрын

Well, modern APDSFS shells go around 1700meters per second, i think they breake the sound barrier pretty easily

@f.b.i.7000

3 жыл бұрын

Same thing but slightly faster and also a big boom

@bhushanpatil9303

3 жыл бұрын

Bullet will have shock in-front of it. Based on shape of bullet bow shock or oblique shock. Shocks are sharp discontinuities. I think this is not modeled in the simulation

@itzameh2233

3 жыл бұрын

Bullet go brrrrr

@mastershooter64

Жыл бұрын

I guess then you'll see a considerable shockwave

is it sonicFoam used? openfoam 8 does not come with sonicFoam anymore...

Did you use adaptive mesh refinement?

can you give a tutorial on bullet motion inside a tube

i need to learn how to perform this type of simulation could you teach me how to do it

I had no idea the shock cones were so prominant. Its not unlike the exhaust of a rocket engine or an afterburning jet engine before the bullet leaves the barrel

Why no shockwave?

OpenFOAM is the free, open source CFD software developed primarily by OpenCFD Ltd since 2004

There must be [s], not [ms] on the graph

different muzzle attachments would be awesome to see

Great simulation, what kind of model are you using for the gun powder?

@SuperTurtle0

Жыл бұрын

It looks like boom pow powder but that’s just at a glance

That's pretty neat.

How did I get here ?

How about speed of light.

عاشت ايدج ضلعه♥🌷

Is that subsonic?

@Elyron2004

Жыл бұрын

yes it is

so the question is, why is there a temperature inversion after the bullet leaves the barrel at the opening?

@lUnderdogl

Жыл бұрын

pv=nrt may be?

0:19 female reproductive system 0:28 male reproductive system

@Ohno871

3 жыл бұрын

Tf

@subhajitchanda6104

3 жыл бұрын

O bhaiii maro mujhe maro 😂

@arkyoot9540

3 жыл бұрын

exactly what i thought

@marjonaldpingoy9235

3 жыл бұрын

Hahaha

@furkanunsal5814

3 жыл бұрын

When I fire a gun I will unintentionally laugh because of you. People will think that I'm a psychopath.

Biology Students watching this be like 😏hmmm interesting way of representing our reproductive system.

@likeablekiwi6265

3 жыл бұрын

Xd

@clementwolf4081

3 жыл бұрын

you son of a gun

No wonder I love guns so much

"welcome to mcdonalds, can I take your ord..."

They all look like subsonic rounds

Awesome and beautifull to watch, except the slowdown of time when bullet exits barrel. It breaks fluidity and sense of time.

The simulations look good! However it will be good if you provide some scales !

Why is the bullet momentarily slowing down during it's exit from the barrel? This is not accurate if that is anymore than lag in the program

@andrasfogarasi5014

4 ай бұрын

The timestep isn't constant. You may observe the velocity graph in the top left corner to see actual velocity.

which software is this

@getsideways7257

4 жыл бұрын

OpenFOAM, apparently.

What Bullet temperature not goes up before friction with air ?

This is crazy

This simulation is incorrect. During the pressure field example we can clearly see the round just barely exceeding the speed of sound. However the pressure wave from the gas escaping the barrel is still clearly outrunning the round.

Wow, so the bullets slows down right at the edge of a muzzle only to speed up again when it leaves it? Is it a glitch or is that really the physics of it?

@mrstrawhat9227

Жыл бұрын

It makes sense. As the bullet travels through the barrel I imagine theres a vacuum effect pulling it back that would get stronger the further down the barrel it travels.

@Puleczech

Жыл бұрын

@@mrstrawhat9227 Did not think of the vacuum, makes sense. But why it speeds up again? Does it get eventually pushed by air rushing in to fill the vacuum creating a shockwave when it fills up the muzzle?

@mrstrawhat9227

Жыл бұрын

@@Puleczech maybe?

@AkariInsko

Жыл бұрын

it probably is just lagging since the time at the bottom isn't increasing at a constant speed

@Puleczech

Жыл бұрын

@@AkariInsko I thought that too, but that would be quite a blunder for such a video...?

1:23 Fractal structure?

mississippi queen

this isn't taking the barrel crown into consideration? the profile of the barrel muzzle is very important for accuracy, why you should not shove a cleaning rod down a barrel from the muzzle end if you ask 5 different gunsmiths about crown profile, you'll get 10 different answers!

it's really beautiful.do u have tutorial for this?

@TactileCoder

Жыл бұрын

4 years of computer science and math

Why are they all squids

This sure is interesting, it’d be a shame if popular Lynyrd Skynyrd song “Free Bird” were played over it.

Спасибо ютьюбу за рекомендацию)

Wow, I need a tutorial on this sim!!

Looks like camo kidney

Would be interesting to see a rifle version of this.

PENG!!

Sorry bro but will use some screenshots for my Instagram post, I will give credit to you.

@lucasvera253

3 жыл бұрын

no

@nik_flex

3 жыл бұрын

@@lucasvera253 why?

Sweet, now I can make a better gun

@gulp630

3 жыл бұрын

Ok

666 likes

Useless. Without an actual velocity and temperature this simulation is wasted compute. Why do simulation folks live in the nondementional world?

for somone who dont know why theres air coming out of the barrel before the projectile leaves the barrel That’s because the barrel is rifled. Lmao

@Chevsilverado

Жыл бұрын

Is that supposed to be a joke?

1:27 looks like a bird or an eagle. god and life emanate from every part of reality.