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    08/21/20New boards added: /vrpg/, /vmg/, /vst/ and /vm/
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    >tfw doing my graduate research on theoretical fluid mechanics
    So... have I just been outmoded?
    >>
    >>17051163
    Yes.
    >>
    >>17051163
    by the time the slop is peer reviewed you're already a graduate
    >>
    >>17051163
    Just create a better model, like the General Relativity of fluid mechanics.
    >>
    >>17051169
    >>17051173
    >>17051203
    Should have taken gender studies desu
    >>
    >>17051163
    AI hasn't "solved" Navier-Stokes, it just answered the Millennium Problem. Very different things and you'd know that if you were actually doing graduate research.
    >>
    >>17051219
    Even doe existence and smoothness of NS is one of the most active research areas in that field, stupid midwit engineering nigger
    >>
    >>17051231
    In the end that's just some mathematical wankfest. NS is after all just an approximation, fluids are not infinitesimally divisible so cannot be perfectly describe by those differential equations. They are made of finite particles which is why in physical reality no such singularities exist.
    >>
    MechE bros we failed...
    >>
    >>17051163
    Yes
    >>
    File: Pepe.jpg (37 KB, 398x376)
    37 KB JPG
    >>17051163
    You can always pivot to practical fluid mechanics. As in, become a plumber
    >>
    Youve just been boymoded, hop on whoremoans IMMEDIATELY
    >>
    >>17051208
    Unironically
    >>
    >>17051219
    AI will solve every problem in fluid dynamics ten times over by the end of next year.
    >>
    >>17051163
    Yeah
    >>
    File: wgtw.jpg (58 KB, 976x850)
    58 KB JPG
    >>17051163
    Bad luck
    >>17051231
    >physicist making fun of the intelligence of engineers
    Oh boy
    >>
    No. Fluid dynmaics will never be peoperly solved.
    >>
    >>17051163
    Yes
    >>
    >>17051163
    Time to pick up manual labor, /sci/.
    >>
    I got hired today, i see no reason my new job cant be done by an AI agent. With an endless supply of third world labor i am facing certain death
    >>
    >>17051163
    Scientists are pretty much eating their own at this point
    >>
    File: Pot_Of_Coffee.jpg (13 KB, 340x328)
    13 KB JPG
    >>17051163

    You will make an GREAT barista
    >>
    >>17051219
    There is no "solving Navier-Stokes". That expression doesn't make any sense, you dumb undergrad.
    >>
    yeah but they probably still have to graduate you
    But lets be real if your graduate reserach was doing some gay ass DNS in some hyper niche fluid mechanics it was boring and pointless research to begin with.
    >>
    >>17051163
    should have pivoted to lattice boltzmann instead of NS as soon as NS was solved.
    >>
    >>17068862
    it's a shorthand, no one is going to explain the semantics every time. the continuum assumption makes NS fail even if you aren't zooming in to small scales. it means continuum equations derived from first principles (like NS) won't be good approximations of reality. move on to mesoscopic models.
    >>
    >>17068943
    >mesoscopic models.
    tl;dr?
    >>
    >>17051163
    outmodeled you mean
    >>
    >>17069356
    NS is derived from three things 1) conversations laws 2) continuum assumption 3) newton's law for viscosity to get the laplacian

    3) isn't relevant because the laplacian smoothes out the solution so it's not responsible for the singularity in NS

    1) has to be true, otherwise every equation in physics is very wrong

    2) is the issue, you take a volume of fluid and take the limit as the number of fluid particles goes to infinity, then you can get a concentration of fluid. 2) is what causes the failure of NS. in reality, a fluid is made up of a finite number of molecules, so instead of taking that limit, you simulate a discrete set of molecules, or a discrete set of points in space, then you make sure your conversation laws make sense. molecular dynamics is the smallest scale where you literally simulate molecules bumping into each other, the problem is the timescale is femtoseconds. a level up is lattice boltzmann where you track a density function on a discrete set of points and ensure the conversation laws are obeyed. ultimately to solve the NS in practice, you need to discretize the equations anyway when you use a numerical method, so the continuum model start with reality (discrete), makes an approximation (continuum), then you use a numerical method (discrete) to solve it, where a lot of effort is made to prove the numerical method actually corresponds to the continuum equation, which if you'll remember, doesn't even reflect reality. it's all a bit convoluted, so people had the idea of starting with a grid (lattice boltzmann) and just tried to make something that looked like a fluid, and they got very close.

    speaking of numerical methods, no one seems to be asking whether singularities in simulations were actually the result of the underlying NS and not numerical errors, which is probably what everyone assumed because NS just HAD to be right.
    >>
    >>17051163
    Yes, time to pick up a hammer and doing real work instead.
    >>
    >>17051163
    Your only legitimate line of enquiry is checking theory against reality.
    >>
    >>17052571
    heh
    >>
    >>17051163
    Consider doing real manual labor.
    >>
    >>17051163
    heres a freebie for your new thesis:
    e=mc2+si
    >>
    >>17051208
    Yeah, and then you could have stolen white men money legally.
    >>
    >>17071910
    what
    >>
    bump
    >>
    >>17051163
    It's over, dang!
    >>
    >>17051163
    You could go work for the NNSA doing stuff with nuclear weapons
    >>
    >>17051163
    Yes indeed. Pick a sickle and start working!
    >>
    >>17051163
    No. You can still make bank in the private sector modeling fluid mechanics in ero games. You do know how to program properly right?
    >>
    >>17051163
    Obviously
    >>
    >>17069402
    Isn't that the same?
    >>
    >>17051208
    Maybe then you could have dated married "liberated" women.
    >>
    >>17051163
    Just like most university students.
    >>
    >>17053942
    Yeah one more year then two more weeks, faggot.
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