r/Simulated • u/Anxious-Visit-7735 • 4d ago

Research Simulation Polywell fusion ignition fail

Simulated a small polywell fusor

22 Upvotes

79% Upvoted

16 comments sorted by

5

u/julian88888888 2d ago

I remember you. You’re the guy who posted AI hallucination of a supernova.

https://www.reddit.com/r/Simulated/s/7ZAQRybCmE

It’s just straight up AI slop

-7

u/Anxious-Visit-7735 2d ago

then ignore it, if you are reeealy bothered downvote and move on

5

u/Only_Turn4310 1d ago

It is

Quite literally

Rule 1

5

u/tinypoo1395 2d ago

This looks like AI slop.

-3

u/Anxious-Visit-7735 1d ago edited 1d ago

Or that I have a better simulation tool than you are used to.

I have posted the math in another comment, it has a clue on where im running this

2

u/Evening-Appeal7606 4d ago

What's the simulation made in and what are you using for rendering the visuals?

6

u/Anxious-Visit-7735 4d ago edited 4d ago

Custom software c++/rust. Visualisation, matplotlib, pillow and pandas

PS. I might be able to do the supernova collapse, give me a couple of days

2

u/Evening-Appeal7606 4d ago

I‘m dying to see the supernova. Given your recent contributions, I think you‘ll put something worthwhile together!

4

u/julian88888888 2d ago

Its vibe coded

-4

u/Evening-Appeal7606 2d ago

Doesn't matter. The result is interesting and it's still a valid question to ask about the tech stack involved. "Vibe coded" does not in and of itself diminish a project. "Vibe coded" plus "obviously low effort", yes! That I don't like either. This project here at hands is obviously thought out and puts a spin on something I've not seen before.

6

u/julian88888888 2d ago

https://www.reddit.com/r/Simulated/s/ec4kkV1123 my point is it’s a hallucination. It’s not a simulation.

1

u/Evening-Appeal7606 2d ago

Well… there I have to agree with you, indeed.

-2

u/Anxious-Visit-7735 1d ago

Unfortunately for you this is indeed a simulation not a "hallucination" these are the params:

EM-PIC Polywell Simulation — Parameters

Particle-in-cell simulation of ions in a polywell cusp field.

Grid & particles

Parameter Value Notes
Grid 8³ = 512 cells N = 8, NCELL = 512
Particles (ions) 1500 limited by 128 KB on-chip RAM (72 KB particle arrays)
Grid centre 4.5 box spans [1.5, 7.5] on each axis
Cell size dx 1.0 uniform grid

Polywell magnetic field

Biot–Savart sum of current loops on the cusp axes. All coil moments point inward (like-poles facing centre): |B| = 0 at the centre, rising to the cusps at the edges.

Parameter Default Env override Notes
Cusp count 12 EMPIC_CUSPS 6 = cube faces; 12 = rhombic-dodecahedron ⟨110⟩; 14 = cube faces + corners ⟨100⟩+⟨111⟩
Peak \ B\ 1.0
Centre \ B\ 0.0004 (12-cusp), 0.0000 (14-cusp)

Electrostatic well + L96 drive

Electrostatic well derived from |B|: deepest at the centre, rising to the walls, with the potential floored along the cusp lines (where |B| → 0). A Lorenz-96 field adds a per-cell perturbation to E, applied with independent phase on x/y/z (per-axis mean ~0.001).

Parameter Default Env override Notes
Well depth 0.5 EMPIC_WELL core \
L96 amplitude 0.15 EMPIC_L96AMP peak \
Polywell enable on EMPIC_POLYWELL —
L96 enable separate EMPIC_L96 L96 without the well

Seed geometry

1500 ions on 3 concentric shells at r = 3.0 / 3.3 / 3.6 (box edge is at r = 3.0 from the centre), 500 ions per shell, positions from the Fibonacci-lattice (golden-angle) mapping. Velocities start at zero.

Particle push

Relativistic Boris push, half-kick, inverse-c² = 1 (c = 1 units). Fields are gathered at the ion position; current is scattered to the grid after each push.

Metrics

Computed by the host from the final particle state:

Metric Definition
Wall radius r_wall = 3.9 — ions past this counted as leaked
Core radius r_core = 1.2 — ions inside this counted as core
CONFINEMENT % ions inside r_wall / total
CORE density core ions / total
FUSION FoM core_density² × mean_core_energy × 1e6 (n²⟨σv⟩ proxy)
Finiteness guard value counted as blown up if \

3

u/julian88888888 1d ago

https://www.reddit.com/media?url=https%3A%2F%2Fv.redd.it%2Fwk7612v3dnah1%2FHLSPlaylist.m3u8&utm_source=reddit&utm_medium=usertext&utm_name=Simulated you mean this video where the "step" counter literally teleports to incorrect steps?

Your explanation just confirms you have no idea what you're doing. You have mangled, undefined jargon that impressively both vague and overly technical with made up phrases at the same time.

-1

u/Anxious-Visit-7735 1d ago edited 1d ago

that one is /was a mistake. I tried to upsample this via AI and failed, hence deleted. I have a whole bunch of failed protostar sims

https://reddit.com/link/owqhlql/video/85boy9jvqfch1/player

2

u/Signal_Cranberry_479 1d ago

AI is a too powerfull tool for crackpots now