De-Ice questions

[iwannaflySC]

Hey guys -- love these forums (... well I guess I should've said "fora" eh? :-)).  This has been a most informative thread.  If y'all will tolerate some ramblings from a newbie on here ...

Fluid is a generic term for a material which will flow, i.e. anything except a solid.

Actually -- even solids can behave like fluids.  A glacier is a solid that flows -- as a solid. Veeeeeery slowly.  
Now there's some ice you don't want in contact with your pitot tube, or wings, or anything else ...  ;D

(Complete aside -- I actually got to go and see, and walk on, some pretty amazing glaciers in Alaska this summer.  Guess where a lot of my fs9 flights have been since? :-).  

My question is -- how does one set icing conditions in fs9? Go to a cold part of the world and fly in winter? Is there a way to control temps and stuff in the weather menu?  Thanks y'all!  

[Delta_]

Any fluids are not solid, glass is thought of as a solid, but actually it is a liquid, it has a very high viscosity which means it appears to be a solid.

[JBaymore]

Any fluids are not solid, glass is thought of as a solid, but actually it is a liquid, it has a very high viscosity which means it appears to be a solid.

Now you're in my professional field........ceramics.....

glass is a "supercooled liquid".

best,

.................john

[Chris_F]

[quote]Well it can be looked at like this. If air was 100% oxygen(which it isn't, about 78% nitrogen and 21%) then it would be a gas, but you add hydrogen it turns into water so in sense when you have high moisture in your little pitot tube it is then filled with a liquid, which in certain temperatures will freeze then cause instrument failure and impending doom

[Chris_F]

[quote]Hey guys -- love these forums (... well I guess I should've said "fora" eh? :-)).

[Chris_F]

Now you're in my professional field........ceramics.....

glass is a "supercooled liquid".

best,

.................john

Correct, but it won't deform under its own weight at room temperature, and at room temperature glass can not be made to "flow".  If you apply enough shear to it to cause it to flow it will crack.  The non-crystaline structure of glass is indeed more like a liquid then a solid, but it will not behave as a liquid in the traditional sense (it will not flow).  In this case glass is an example of a liquid which is not a fluid.  Confused yet?

BTW, stories of old window panes of glass which have shown evidence of "flow" over time are misinterpretations.  The glass did not flow at all.  Old techniques of glass used to produce a very rippled pane which varied in thickness.  The person who installed the glass would install them thick side down (it's more stable that way).  There are however instances of people making mistakes when installing panes and installing them thick side up.  Despite this "evidence" it should not be assumed that glass can be made to flow upwards.  The glass in fact did not flow at all and the phenomena is simply a result of old glass making and installation techniques.

[iwannaflySC]

[quote]

The actual ice in a glacier doesn't flow.

[JBaymore]

[quote]

Correct, but it won't deform under its own weight at room temperature, and at room temperature glass can not be made to "flow".

[JBaymore]

[quote]You will not see the ice forming on the wings or structure (unless you have Bill Lyons Apache.

[Politically Incorrect]

I have to admit that everytime I come here I learn something new, or at the least get my memory jogged a bit.
This did turn into a interesting and informative topic!

And I agree if icing can be done on one flight sim model why hasn't it been incorporated on others? Or is it just that not many really care about that aspect of flying? Which they should it is something that can be incountered at anytime of year in any kind of weather! and I don't have any stats but I would guess is probably the most common incident that happens while flying, besides turbulance.

[Billerator]

Wow, I never knew that hydrogen is a metal, not that it makes alot of difference anyway.

[codered]

I have not looked very close at the Bill Lyon's Apache, but I would think maybe it is a panel gauge of somekind that react to when there is icing present in the clouds.  Once the pitot heat is turned on the ice goes away.

Perhaps someone in the aircraft development forum might know something about how this can be done.

[elkinallen]

I have been in icing. It is quite something. I have flown GA aircraft in all conditions and icing is the most of the most.

I don't see why Icing cannot be modeled visualy.  Afterall, SWOTL back in 1990 modeled the visual accumulation of 'oil' spray on the windscreen.

All is a fluid?  All is a solid?   When you get right down to it, all is a GAS!  Molecular, atoms, nucleus and such.