Favorite team:	LSU
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Number of Posts:	73
Registered on:	2/5/2009
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re: 2 Lot 400 parking passes for sale vs Ga St

Posted by stbtiger87 on 11/16/23 at 6:42 pm

Email sent...

LSU Ticket Exchange

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re: DARPA Selects Aurora Flight Sciences for Phase 2 of Active Flow Control X-Plane

Posted by stbtiger87 on 1/18/23 at 9:14 pm

You can’t beat old aerodynamics/fluid mechanics videos from the 50s. [link=(https://m.youtube.com/watch?v=w1Q6-NJPpkk)]YouTube[/link] Fast forward to 9m45s and 20m40s to parts about active flow control using slots and jets like what this X plane will probably be using. Or watch the whole thing be...

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re: Where to find 4in metal poles for sun shade sail?

Posted by stbtiger87 on 8/1/22 at 12:08 pm

[quote]You're not concerned with those wood 6x6s warping over time with the constant tension?[/quote] You're probably not wrong that they may warp some over the years but they've been loaded up for about a year and half now and haven't budged. When I load up the shade on the posts, the posts bare...

Home & Garden

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re: Where to find 4in metal poles for sun shade sail?

Posted by stbtiger87 on 7/31/22 at 9:50 pm

I went down the sail shade rabbit hole last summer. Sounds like you got your plan straight, going with the 4” steel posts which will hold up really well. Just to throw it out there, doing 6” posts will hold up well with the tension and I liked the aesthetics a bit better. With my project I ended up ...

Home & Garden

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re: When an object enters the atmosphere it burns up from compression, not friction.

Posted by stbtiger87 on 7/27/22 at 8:42 am

[quote]That's how I was thinking of it, and that's why I don't see much difference between increasing temperature by molecules bumping each other under compression, or friction shearing or "rubbing" each other.[/quote] Yeah I mean at some point its just a bunch of shite bumping into each other and...

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re: When an object enters the atmosphere it burns up from compression, not friction.

Posted by stbtiger87 on 7/26/22 at 8:41 pm

The reason why it’s important to differentiate between heating due to friction and adiabatic compression is not only because mechanically they are different, in a fluid adiabatic compression is reversible and heat gained from friction is not. If there’s no friction, if you do some work and compress ...

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re: When an object enters the atmosphere it burns up from compression, not friction.

Posted by stbtiger87 on 7/26/22 at 3:50 pm

[quote]Isn't it just semantics though? Doesn't compression just create more friction between air molecules, which creates heat?[/quote] Nope not semantics, compression doesn't create more friction between air molecules. If you're in a diesel piston before the compression stroke, air is sittin...

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re: When an object enters the atmosphere it burns up from compression, not friction.

Posted by stbtiger87 on 7/26/22 at 11:10 am

There's a bunch of misconceptions in this thread as it relates to compressible aerodynamics. There's three sources of temperature increase that people are talking about and getting confused. There's adiabatic heating of the air upon re-entry that is caused by compression of the air at the leadin...

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re: Fans leaving early - Notre Dame comparison

Posted by stbtiger87 on 9/15/19 at 9:59 pm

So I actually have a similar perspective to OP - went to LSU for undergrad and finished my Ph.D. @ ND a few years ago. Notre Dame attendance has a few things going for it: 1. When the game starts, all on-campus tailgates at ND have to shut down. There's no going back to the Powalski's (or whateve...

Tiger Rant

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re: Man eats LSU students pet fish, charged 2 years later

Posted by stbtiger87 on 1/9/19 at 10:55 am

[quote]One fish...two fish....[/quote] Eat fish...Poo fish......

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re: China test fires massive new lCBM

Posted by stbtiger87 on 4/21/16 at 6:03 pm

Mach # = velocity/sound speed. The speed of sound is less in the upper atmosphere and the air is pretty rarified so attaining those speeds doesn't cause the same problems as it would at sea level. Just look at the HiFiRE missle and X-51 programs - air-breathing hypersonic missles in the dense lo...

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re: China test fires massive new lCBM

Posted by stbtiger87 on 4/21/16 at 12:58 pm

Sound speed decreases with temperature and its pretty cold in the upper atmosphere. Mach 25 might be 19000 mph at sea level but when you see those Mach numbers in atmospheric re-entry its less than that....

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re: OT'ers with South Bend experience....

Posted by stbtiger87 on 3/20/14 at 12:51 pm

Conveniently located near the gigantic book store on the south part of campus there's the Eck Visitor Center that has a bunch of really cool historic Notre Dame sports stuff but that might be as close as it gets to a museum. Legend's, one of the on campus restaurants, has some jerseys hanging and so...

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re: OT'ers with South Bend experience....

Posted by stbtiger87 on 3/20/14 at 12:21 pm

Former LSU student at ND right now: They moved the CFB HOF to Atlanta, thats a no go. Take a long walk around campus. Its one of the most scenic campuses I've been on and a few sights like the Basilica, the grotto, the lakes, and the main building are really nice. Tomorrow night ND's baseball...

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re: 2 Tiger fans at gameday at Notre Dame...

Posted by stbtiger87 on 10/13/12 at 10:43 am

[quote]how the hell you end up in South Ben[/quote] I ask myself that question everyday. Nahhh, the opportunity presented itself and they pay me to get an grad degree in aerospace engineering....

Tiger Rant

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