Realistic aerodynamics idea

[davidz40]

After geometry\group of geometries is selected, there will be a "better aerodynamics" checkbox, and some sliders to control options/complexity (explained later).

As the geom moves, algodoo spawns circles on a plane perpendicular to the velocity and located before the geometry.

The circles are simulating air particles:
a) Pressure
they repel each other when too close, and attract when too far away.

b) Visciosity
They simply have some friction

3) Coanda effect
They are attracted by the geometry


These parameters, as well as number and size of circles could be controlled by sliders in "better aerodynamics " window.

The circles have their own collision group, so they don't affect the rest of simulation.


This could provide some aerodynamics effect, taking geometry shape into account and without creating huge lag.

[Mystery]

Your thinking to much like how you could do it in algodoo (Which you probably could. ) Emil knows best suggestions are great but they have lots of flaws when you say how it should be implemented. Besides Air pressue is on its way to Algodoo.

[Antotabo]

Cool! It seems like a lot of people are starting thread about aerodynamics. I like to see that I'm not the only one hoping for this to happen.
But could you please use the search button. I already did a thread about this and I've developed a method for aerodynamic calculation especially for my favourite software wich is Phun/Algodoo. Please, take a look at my thread i'm sure you will enjoy. And leave a post please to bump it and don't let it die !

http://www.algodoo.com/forum/viewtopic.php?f=16&t=589

[davidz40]

Antotabo, Your idea is really great!
We both have much different approaches to the problem.
Your way is definitely less cpu intensive and seems to be sufficient for phun, while mine is a rough aproximation of real airflow simulation (so polygons can interact with themselves by interacting with airflow etc)

[Nxdt]

Yes, for a scene with lots of objects your idea would make some monumental lag. Whereas Antotabo's idea would be less laggy. I would assume yours would be more realistic though as it has an actual airflow instead of some calculations.

[Rrobba]

Air pressue is on its way to Algodoo.

Did Emil say that?

[Mystery]

Yeah on more the one occasion if i remember correctly. But it will be like the water tool, but for air so it can only be used in sized spaces.

[Rrobba]

Yeah on more the one occasion if i remember correctly. But it will be like the water tool, but for air so it can only be used in sized spaces.

Won't the air have to be visible then?

[Mystery]

like water you could make in invisible.

[Chronos]

It'll probably just be an animated wind blowing effect, or maybe some very transparent white circles.