EcoModder.com

EcoModder.com (https://ecomodder.com/forum/)
-   Aerodynamics (https://ecomodder.com/forum/aerodynamics.html)
-   -   CFD of a Tank (https://ecomodder.com/forum/showthread.php/cfd-tank-27218.html)

jeff88 10-08-2013 02:13 AM

CFD of a Tank
 
Can somebody do a CFD of a tank for me? :D

I'm especially interested in what the big turret barrel does, but also everything else as well (of course).

:thumbup:

kach22i 10-08-2013 09:22 AM

I have to be the first to say it; I bet that it's a better Cd going backwards.

RedDevil 10-08-2013 09:56 AM

I tend to believe that, but like to see some proper ABA testing to be sure ;)

kach22i 10-08-2013 11:28 AM

A few images for inspiration.

Computer Tank Fighting
http://media.caranddriver.com/images...s-original.jpg

El Paso, Texas - Wikipedia, the free encyclopedia
http://upload.wikimedia.org/wikipedi...Anna_Range.jpg
Note: would help the Cd is they could keep the turret straight.:D

M1 Abrams Main Battle Tank
http://www.inetres.com/gp/military/cv/tank/M1/M1.gif
Quote:

The temperature of the M1's exhaust may be over 1,700. Soldiers following behind the tank must be to the side of the exhaust grill or at a safe distance away if they are moving directly behind it.
http://www.inetres.com/gp/military/c...1A1_USMC_T.png

Defence and Freedom: January 2011
http://4.bp.blogspot.com/_V7Ehj7eG65...ian+Abrams.jpg

https://www.google.com/search?q=coff...icient&spell=1
http://usarmy.vo.llnwd.net/e2/c/imag...7784/size0.jpg

I think that the rounder Russian/Soviet T-Series tanks would have better aero than an Abrams M1, but I went with one of ours.

elhigh 10-08-2013 05:17 PM

"Don't look for a place you can remove a ton. Look for 2000 places you can remove a pound."

elhigh 10-08-2013 05:21 PM

As is too often the case, we did better in earlier iterations. I mean, look at these full fender skirts!
http://someinterestingfacts.net/wp-c...ank-armour.jpg

NachtRitter 10-08-2013 05:22 PM

Aerodynamics would probably be significantly improved if they removed the flag(s) and antennae(s)...

At least they fit them with full belly pans from the factory...

jeff88 10-08-2013 05:48 PM

@kach22i: I agree backwards would probably be better. I think I have heard of tank sqaudrons turning the turret around if they need to go faster. A CFD would prove it though! Thanks for the pics BTW. Also, I like the national pride, none of these outsider options! Murica! :)

I like the quote about the exhaust temp. I'm surprised they don't turbo it to use up some of that energy. It is a diesel, isn't it?

@RedDevil: I know somebody in the Navy and another in the Air Force. Don't know of somebody who can let me "borrow" a tank for the day. Besides, where do I hook up my Ultragauge! :p

@elhigh: I'm not sure what you meant by the quote, but I assume you were eluding to fixing the millions of cars on the road, rather than a few tanks. If that is what you meant, then my response would be this is just a fun excercise basedoff a day-dream thought I had. If that's not what you meant can you please explain. :confused:

Would the shape of a WWI tank work today (obviously with updated hardware)?

@NachtRitter: Yeah, they need to get one of those headliner type antennaes! Too bad the belly pans from the factory are X amount tons!

-----------------
OK, in all seriousness, can somebody do this so we can see what it looks like? Thanks! :thumbup:

RedDevil 10-08-2013 06:50 PM

Me know nothing about CFD, but let's try this:
http://img820.imageshack.us/img820/2010/fw9o.jpg
Astonishingly, it fits rather... Nah.

Cd 10-08-2013 10:57 PM

Quote:

Originally Posted by elhigh (Post 394637)
As is too often the case, we did better in earlier iterations. I mean, look at these full fender skirts!
http://someinterestingfacts.net/wp-c...ank-armour.jpg

Full fender skirts AND a full template like slope to the rear. :D

My guess would be that the turbulent wake on a modern tank is around four times the size of the tanks frontal area - a complete mess !


I just tried to get a model into Falcon ( CFD ) but i keep getting crashes. Off to bed.


All times are GMT -4. The time now is 10:31 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com