Sorry guys, but the light blogging is going to continue for a while. I’ve got some ideas I’d like to write a bit about, but getting my thoughts together to a point where they’d be worth posting is going to take longer than I have at the moment. Here’s a random sampling of the craziness that is my life:
Things are going fairly well at work, and I should be to the point where I can write up an official MSS Update either sometime later this week or early next week.
Last year I was asked to serve as a Webelos (Cub Scout) Den Leader for the three Wards here in Tehachapi. I finally got formal training for the position last month, and then was promptly released last week, and given a new (and probably more challenging) calling. I’m now the “2nd counselor” in the Elders Quorum for our Ward (Wikipedia has a semi-decent explanation for those not familiar with LDS jargon). It’ll be a challenge, but an enjoyable one.
My thesis is actually moving forward a bit. I was able to get access to Maple (the computer program I’m using for doing my math models) again, so I’ve been making some progress getting my models put together. I was able to tie in the complex loss constants into my piezoelectric vibration model. It turns out that Maple eats Bessel functions with complex arguments for breakfast. I was also able to figure out a model for the pressure distribution in the nozzle (as a function of position, time, and the amplitude of the wall vibration). Interestingly enough, it turns out that you can actually have a negative pressure value in some cases. At first I thought that this meant that the fluid would cavitate at that point, but it turns out you can have negative pressure without cavitation in some instances. Weird, huh? Where I’m having trouble is coupling those two models together (the one that describes the piezoelectric crystal and nozzle with the second model that involves the nozzle wall and the actual fluid). Maple doesn’t like that. Or more correctly, I keep crashing the program as it sits and crunches on the numbers. I’m making some progress, but the math is just really, really, really ugly. I’ll go into the math a bit in a future post if anyone is masochistic enough to want to see it, but suffice it to say, my computer doesn’t like me a the moment.
And on the homefront, I have a wonderful wife, and two cute little boys doing cute little boy things. I’ll have to post some pictures with the incriminating evidence from Jonny’s latest adventure sometime soon too.
Anyhow, but other than some thesis related stuff, and maybe some Jonny bloggin, I’m not going to be able to blog too much anytime soon.
Latest posts by Jonathan Goff (see all)
- On Avoiding Some of the Mistakes of Apollo - July 21, 2019
- SBIR Proposaling Advice - March 8, 2019
- FISO Telecon Lecture on LEO Propellant Depots for Interplanetary Smallsat Launch - November 28, 2018