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Old 10-08-2013, 01:13 AM   #1 (permalink)
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CFD of a Tank

Can somebody do a CFD of a tank for me?

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


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Old 10-08-2013, 08:22 AM   #2 (permalink)
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I have to be the first to say it; I bet that it's a better Cd going backwards.
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Old 10-08-2013, 08:56 AM   #3 (permalink)
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I tend to believe that, but like to see some proper ABA testing to be sure
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Old 10-08-2013, 10:28 AM   #4 (permalink)
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A few images for inspiration.

Computer Tank Fighting


El Paso, Texas - Wikipedia, the free encyclopedia

Note: would help the Cd is they could keep the turret straight.

M1 Abrams Main Battle Tank

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.


Defence and Freedom: January 2011


https://www.google.com/search?q=coff...icient&spell=1


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.
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Old 10-08-2013, 04:17 PM   #5 (permalink)
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Old 10-08-2013, 04:21 PM   #6 (permalink)
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As is too often the case, we did better in earlier iterations. I mean, look at these full fender skirts!
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Old 10-08-2013, 04:22 PM   #7 (permalink)
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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...
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Old 10-08-2013, 04:48 PM   #8 (permalink)
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@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!

@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.

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!
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Old 10-08-2013, 05:50 PM   #9 (permalink)
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Me know nothing about CFD, but let's try this:

Astonishingly, it fits rather... Nah.
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Old 10-08-2013, 09:57 PM   #10 (permalink)
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Quote:
Originally Posted by elhigh View Post
As is too often the case, we did better in earlier iterations. I mean, look at these full fender skirts!
Full fender skirts AND a full template like slope to the rear.

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.


Last edited by Cd; 10-08-2013 at 10:12 PM..
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