Re: Dummies question - gap filler

On Thu, 11 Aug 2005 02:22:09 GMT, "Greg D. Moore \(Strider\)"
<mooregr_deleteth1s@xxxxxxxxxxx> wrote:

>
> "Reunite Gondwanaland (Mary Shafer)" <reunite.gondwana@xxxxxxxxx> wrote in
> message news:59udf1t6sk7a9o3bb738ir5tn5or9lnbal@xxxxxxxxxx
>
> > This is part of the reason the tiles are laid diagonally, not
> > straight. The flow always crosses the gap, rather than running along
> > it. This minimizes local heating at larger-than-normal gaps.
>
> Hmm, never heard taht.

I'm shocked. It's in the paper I wrote about hypersonic
aerothermodynamic, after all.

> Any reason then they used linear edges on the doors and stuff? You'd think
> they'd want to use some sort of checkered edge.

You mean like the gear doors on the F-117 Stealth Fighters? With
zig-zaggy edges?

The gear doors on the Orbiter are fairly short and pretty rough, so
flow entrainment isn't as much of a problem as it would have been for
the entire belly. They might have thought that zig-zag gear doors
were too complicated to build and maintain, too.

Mary

--
Mary Shafer Retired aerospace research engineer
We didn't just do weird stuff at Dryden, we wrote reports about it.
reunite.gondwana@xxxxxxxxx or miliff@xxxxxxxx
.

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