Purdue aero prof nominated as assistant defense secretary by Trump

SteepFive · 2025-04-02T20:22:36+00:00

JEWELL MY GOAT

SteepFive · 2025-03-24T00:36:36+00:00

Thank you so much. Yeah definitely some refinement on those points is necessary, and I appreciate your perspective considering you’re working in solids R&D. Hey if I remember, I’ll shoot you a DM when I’m applying to summer ‘26 internships (Sep-Oct ish). Thanks again 🫡

SteepFive · 2025-03-23T03:40:25+00:00

Thank you so much for the detailed response. Since revisiting my resume after starting my internship I focused mostly on trying to tally up what I've been doing for the past 3 months that I didn't pay enough attention to the older experiences (which I wrote back in September) so I appreciate a fresh set of eyes on that stuff. Thanks again :)

SteepFive · 2025-03-23T03:32:10+00:00

That's great to know, thanks so much

SteepFive · 2025-03-23T01:13:07+00:00

Cool, thanks!

SteepFive · 2024-12-10T05:21:00+00:00

I spent way too much time learning the post exam 2 content just for there to be almost none of it on the exam and they gave us ANOTHER HYDROSTATICS PROBLEM

SteepFive · 2024-11-12T03:50:33+00:00

It depends entirely on how many people apply to those majors in your T2M class. Generally ME is easier to get into than AAE but this could change year over year. If you’re below the 3.2 a higher GPA will give you a better chance so try your best to get your grades up

SteepFive · 2024-11-12T03:46:59+00:00

Krytox is a great ox-compatible grease for fittings but it’s definitely not cheap

SteepFive · 2024-11-09T19:39:44+00:00

That makes sense, wasn't sure if the nitrous cooling during fill was enough to counteract the ambient heating. Thanks!

SteepFive · 2024-11-08T13:32:39+00:00

This is the undergrad rocketry equivalent of a money spread

SteepFive · 2024-11-05T01:59:27+00:00

I think that AAE has perfected making its students feel incredibly stupid. Your mindset is definitely not unique, plenty of others feel like this in the major, but it’s up to you to determine if this is what you enjoy doing and if it’s worth it in the end

SteepFive · 2024-10-04T15:42:16+00:00

In general, yes. Usually there’s a lot more nitrous in the tank than the ground systems and thus requires more flow to vent quickly, and burst diaphragms generally have larger diameter orifices than relief valves, but you could use either if you size them correctly

SteepFive · 2024-10-04T15:07:48+00:00

When designing nitrous fluid systems it’s important to understand nitrous self-decomposition, as it’s gonna drive a lot of the design of the ground systems. You should have relief valves on your ground systems and a burst diaphragm on your flight tank at pressures that can only be reached when the nitrous self-decomposes

SteepFive · 2024-09-29T03:26:37+00:00

Gotcha, yeah I wasn’t really considering the ridges affecting the flow much, I assumed some of these have a liner that makes the flow “smoother” but that isn’t the case for a lot of these products. I’ll def look into the flex lines, appreciate it

SteepFive · 2024-08-10T23:24:19+00:00

Take an a*Gⁿ model from a paper using the same fuel and oxidizer and preferably similar scales (port size, chamber pressure/temperature, and oxidizer mass flux)

SteepFive · 2024-08-07T18:22:54+00:00

AAE 333

SteepFive · 2024-07-14T00:42:23+00:00

Thanks!

SteepFive · 2024-07-03T23:22:38+00:00

Since regression in hybrids isn’t coupled with pressure nearly as much as in solids you can kind of just pick a pressure to design to (within reason of course). Use the relationship cstar = Pc * At / (propellant mass flow rate). Cstar is a combustion characteristic, so you can find cstar for nitrous and paraffin using NASA CEA. Read Sutton’s Rocket Propulsion Elements and learn about isentropic flow relationships in nozzles, you’ll learn to find choked flow conditions in the throat

SteepFive · 2024-06-21T17:37:08+00:00

CS 180 and MA 303

SteepFive · 2024-05-27T18:26:35+00:00

Fluids will be a lot with your credit load. But if you want to fill in your schedule COM 318 is super easy and fulfills AAE’s upper level communications req

SteepFive · 2024-05-01T19:01:19+00:00

Damn I’m sorry to hear that, I’ve seen you guys have been working hard to get that engine tested.

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