JorgeGT

Joined 11 years ago

Karma
6,161
Submissions
1,106
Member since
Mar 30
PhD Aerospace engineer, serial procrastinator.
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Recent submissions

Comment · 27 days ago
Comment · 3 months ago
Comment · 3 months ago
Comment · 5 months ago
Indeed Bizum is almost default now here in Spain, and for instance the equivalent in Sweden, Swish, is also almost default there. Went trekking into a national park, and the rangers will leave a number to Swish a bit of money if you want to use the fire pits; no other payment means.
Comment · 7 months ago
Comment · 8 months ago
The Ryan Doctrine.
Comment · 9 months ago
I talked with one of the aeroacoustic engineers working on it, she says they expect to match noise levels of current engines.
Comment · 9 months ago
Damn. I especially liked the cloud backup & sync. Any good alternatives?
Comment · 11 months ago
I don't know about the A320 but this was certainly the model for the Eurofighter. One of my university professors was in one of the teams, they were given the specs and not allowed to communicate with the other teams in any way during the hw and sw development.
Comment · 1 year ago
Lenovo has been doing this in Spain for quite a bit, and you can even buy them without any preinstalled OS at all for a lower price still. But at least here the option is typically available for ThinkPads rather than for more cheap consumer lines. Same with Acer. Dell offers Linux options but no "empty" option afaik.
Comment · 1 year ago
It's tangential, but this is the first time I've seen Fluent installed by simply decompressing a tar, instead of executing their big installer.
Comment · 2 years ago
In reality few codes are capable of effectively parallelizing to so many computing processes. But, how cool would it be?
Comment · 2 years ago
It really depends on the problem to be solved (domain size, complexity of physical phenomena such as turbulence model, heat transfer, acoustics, multiphase flows, combustion, etc., number of time steps required...). In our case we perform for instance simulations of turbomachinery acoustics that can take 3-4 weeks running in a few hundreds of CPU cores, combustion acoustics simulations that can take a week or two running in 1k-2k cores...
Comment · 2 years ago
Oh no, apologies if that was the impression I gave!! I actually perform CFD simulations in HPC clusters, and in fact I'm an admin of the small cluster at my research institute =)

These are indeed heavy computations. What I meant is that VoF is one additional equation to be solved besides the N-S equations (either filtered as in LES or Reynolds-averaged as in RANS), the energy equation, your turbulence model equations, and so on. Certainly, not instantaneous at all, but simply an additional "simple" model that we can hook into our current way of doing CFD.

So, my point was, sloshing is a problem that we know how to simulate, although certainly you need HPC resources. Though, looking at those 100k NVIDIA H100 Elon has, I guess they have them! :P

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