BEbelter·Dec 7, 2024Submission
1 points · Open discussionProjectPhysX
FluidX3D
C++2022–2025
ProjectPhysX / FluidX3D
FluidX3D
The fastest and most memory efficient lattice Boltzmann CFD software, running on all GPUs and CPUs via OpenCL. Free for non-commercial use.
7Distinct people
13Mentions
0Explicit recommenders
5.4KGitHub stars
What to know before exploring
What it is
The fastest and most memory efficient lattice Boltzmann CFD software, running on all GPUs and CPUs via OpenCL. Free for non-commercial use.
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 10:02:05 AM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year13 dated mentions
Observed mentions: 2022-08-06 02:59:25 UTC to 2025-04-24 19:57:59 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 2 | 1 | 1 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 5 | 2 | 3 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 4 | 2 | 2 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 2 | 0 | 2 |
What Hacker News says
4 sourcesCouple thoughts:
The jitter is likely due to the suction pulling the air from the outside of the tubes, which then get pulled in the gap between the things - which does so in a buffeting fashion due to the movement of the pipes, so it finds the oscillation... (the tubes are a Foil - so you have to accomodate the flow diff on the external and internal of your receiving tube - and how the flows from the outside of the foil are a diff speed/flow/rate than the center of the tube - thus the light suction guy gets enough strength for the outside air to push it back - once it gets far enough from the horizontal tube, the pressure from the outside flow drops and the lever goes back to its resting position and begins again)
The other thing, as he mentioned eddys -- the inlet and outlet cones should be turbine-spiral shapes - as the air/fluid comes
Read the rest
down the pipe, if you give it a spiraling/riffling it will keep the flow somewhat cohesive as it spins it.
Further, as a YT comment mentioned - stuffing a bunch of small straws in the main tube helps, because if you have a lot of smaller tubes - (especially with water) you can get the effective "orientation of the molocules" the same - so your stream can be more cohesive (this method was (invented?employed) by Disney Land Engineers when they were building the fountains that shoot clean, cohesive lasers of water.
They run the streams to the fountain through pipes that have a ton of staws inside - so the water gets orientated in such a way that when the stream leaves the nozzle, the water stays together.
Also - you can test all this in FluidX3d: https://github.com/ProjectPhysX/FluidX3D
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The Eddy Pump was first invented by Leo Davinci... and now we have great pumps like:
https://eddypump.com/pump-videos
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The eddy is the most important thing to understand in fluid dynamics IMO. (its what your Heart is, BTW)
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@Btrettel:
THANKS! I couldn't think of the term laminar...
And I was simplifying "stuffing straws"..
Appreciate the input. Have you tried FluidX3D?
Could even use this as a revers GLOBAL ORBITING SYSTEM [GoS] - Whereby a single satellite|probe dispels a lander to a planet with the Quantum Magnetic Cannister, and that QMC signals its global location to the satellite launcher, and the satellit can extrap its location based on the absolute location of the ground guys... (might need more than one ground magnet-moles?)
How can this be measured? Can fluidx3d do martian magnetics? [0]
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[0] https://github.com/ProjectPhysX/FluidX3D
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EDIT: "Mars does not have a magnetosphere"
ELI5: "how do electronics work when there is zero magnetic field around them? A complete antimagnetic environ?"
I've never heard any mention about making any electrical device work on a planet (such as mars) in a complete magnetically dark location?
How is there gravity on mars if there is no magnetic field for a pla
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net, and how can mass, the size of a planet not produce magnetism/gravity if its not made of iron-sh (the RED of the planet)
ELI5, please.