blingthinger

That Skycrane reference on wikipedia doesn't actually reference a reference. The paper it points to just says 'it can be done' but doesn't offer documented proof. Assuming it's accurate though, you "simply" need to be able to shed the majority of your gross weight at the snap of a finger and apply that suddenly-unused power towards fighting the drag of airfoils at really high AoA instead of lifting a load of cargo. So empty load at full power and just barely hanging on with the airfoils at high AoA and some big proportion (maybe 50%) of the rotor radius being subjected to even more insane negative-lift AoA (~45 deg?...hello drag, goodbye lift) of the ring-center flow. I would think that collective range is also a player here. My guess is that it's probably not common to be able to push rotor blades near stall AoA to get to the needed lift range for the portion of the rotor that's still actually worth a darn. So "power out" of it might be an option but it's not exactly the territory of a non-workhorse copter.

Fingers and toes crossed for 12.2! Because just as IRL pilots flap their gums in these forums when so many of the topics hit home, this topic is one that flaps mine. You'd feel it too if you've ever tried to use CFD to any real effect for a real product. There are other reasons too (e.g. un-teaching marketing hot air). I agree with your outside-looking-in observation that it may not matter to the "hordes", but the hordes aren't 100% of the market population either. As for what they're using it for....my bet (yes, pun) is that they're running CFD for airfoil or structural design and then plugging those resulting forces/moment curves into the sim just like one would export from Airfoilmaker. Then using that to predict overall performance behaviors (cruise, etc). If it's a good enough simulation, maybe they're using it to tune the autopilot and fly-by-wire system. Just like any quad copter, Alia's got some pretty cool stabilization features (at least, based on what I see in XP). That's where the dynamic response of the sim would be coming into play. That's still very much a thing, though GPUs are quickly changing that status quo. We "could" be a decade away from practical real time CFD for low Reynolds numbers but the problem that I stated earlier remains: Boeing won't be handing out their CAD geometries any time soon and that's kind of a big deal for these types of predictions. Right about then is when we start talking about turbulence models to get their eyes to fully gloss over so that we can make our escape from the room.

Hahaha.... "Austin-sigh" Training? This goes well beyond pilot training (which is indeed part of it). They've used XP to help design the Alia system. I've yet to figure out exactly where, but it would be anywhere from airframe (wing/fuselage/rotor geometry) to the flight control algorithms (of which there are oodles). Design manipulation necessitates realism, which you've so eloquently stated previously that XP has plenty of. I'm merely agreeing with you. Saltily, apparently. Oh, and that would actually be XP along with a healthy dose of "yuh realz CFD". Future aviation doesn't happen without "realz CFD".

Sure, I live in it, but Newton, Navier, and Stokes built it.

It's true. The reality of math and physics can sometimes come across as harsh. Especially for hype-based marketing campaigns! Another common definition of CFD is Colorful Fluid Dynamics. We frequently use that side of it to blind the business-end folks who haven't got a clue about the approximations and shortcomings of the models. Lots of "colors" flapping around in simzilla. On the flip side of the computational prediction coin (I mean...in a literal word-definition context, XP is Computational Fluid Dynamics too), we have this: Alia

Not at all. You're blind to what creates the tribalism. Go back to your sim session. You'll surely feel safer there. Less "blinded", apparently. HA! Obviously not. Marketing efforts quite literally tout it as part of the savior of the simming world and the blind tribe parrots it blindly. The reality is that it's a joke. Streaming ortho/photogrammetry is what did that. What's more, I don't see LR frantically clamoring to implement their own CFD out of panic of being 'turned on an ear'. They don't need to and that's the point here. PMDG called asobo's CFD a "buzzword". That's exactly what it is. Booo. Go back to your sim session. That's not what what I said at all. Real/useful CFD doesn't run real-time. Well, not that can be taken seriously as far as rigid airframes are concerned. Or perhaps I was 100% supporting your current preference du jour.

A blissfully aloof hobbyist. Good for you for attaining that peace of mind. :) was this pun intended? I've written and tweaked too many CFD research codes and used too many commercial CFD solvers to ever do anything but laugh at asobo's flight model. In private discussions we laugh loudly. XP uses real wind tunnel data if desired, to generate the surface forces. It's a simple as that. Ok, ok...the fuselage portion is way too generic but even that is based on actual measurements, and not on fake forces created by infinitely thin flat plate wings. Blending and balancing those 2 disparate models is a nightmare to develop for. Actually, XP is a nightmare too. It's not as if the Cessnas of the world are handing out free CAD models of their airframes to then be able to run (real) CFD to get lift/drag/moment curves (the primary reason why FSX will always remain under the hood of asobo's model, even with slightly improved fuselage surfaces). The tuning process in XP is at least based on fundamental physics instead of chasing the dragon generated by nonsensical airframe geometry.

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Yes that. The v10 pic is even worse. I can tell you're playing with the colors.

So it's not a 100% replacement? I know it's not uncommon for high end 3rd parties to override the engines and fuselage.

That's exactly what I want to do. The googles aren't giving me anything useful.

Link?

Over-saturated. Much like the product mentioned by thread OP in this XP forum.

sim/private/controls/hdr/bloom1 sim/private/controls/hdr/bloom_exponent sim/private/controls/hdr/bloom_lo sim/private/controls/hdr/bloom_hi Haven't played with these but know that you can at least tune it differently than defaults. Maybe even turn it off?

A bit subjective with Gamepass in the mix.