3-Tube PDE rig shadowgraph
In my last blog I talked about a valved multi-tube PDE called the 3-Tube PDE rig and hinted at some of the exciting experiments that we have run using it.
In our research on PDEs, one of the areas of focus is the effect of the exit nozzles on the operation and performance of PDEs. Not much is known about this so was one of the first areas we decided to dive into. We studied two exit nozzle geometries; a baseline straight nozzle and a converging nozzle with an area ratio of 0.25 (which means that the minimum area is only 0.25 the area of the tube).
By ‘looking’ at the detonation wave using shadowgraph, we discovered that exit nozzles have a big impact on the wave as it leaves the PDE. In a previous blog, my colleague discussed the blowdown from the exit of a PDE tube without a nozzle and showed a shadowgraph sequence.
How will power, clean water, and fuel be generated in the future?
Hi! My name is Ajilli Hardy and I am one of GE’s new and enthusiastic blog editors! I belong to the Energy Systems Laboratory and work on improving or developing technologies for power, water, oil and gas systems. Part of what we do in the Energy Systems Lab is imagine how power, clean water, and fuel will be generated around the world in the future. What will primary infrastructure systems look like in 30 years? Where will we get our electricity from?
What have you done out of curiosity?
Recently, some of my colleagues traveled to Las Vegas for the Consumer Electronics Show (CES). In addition to lots of great insight into the future of gadgets and electronics, they brought back the following YouTube video from CES. Here you can check out one of my good friends and colleagues, Vijay, who ended up at CES out of his own interests, being used as a volunteer in a Taser demonstration at CES.
It always amazes me the things that people do just for pure curiosity and the desire to learn more about the way things work. Vijay’s curiosity inspired me to propose the question to Edison’s Desk readers:
What strange/interesting/crazy things have you ever done just out of curiosity?
Electronic Materials and Applications – an exciting new meeting
Last week I participated in the first Electronic Materials and Applications meeting in Orlando, FL where I helped organize the Advances in Ceramic Processing Symposium and chaired a ceramic processing science session. This conference brought together researchers from all over the world that are doing cutting edge work in electronic ceramics, from energy storage to energy conversion technologies. Interesting plenary talks were given by David Danielson (ARPA-E), John Blottman (NUWC), and Tim Anderson (FESC). I was also thoroughly impressed by the high quality research presented by undergraduate and graduate students in the New Investigator Symposium.
Check out this video I made at the conference and meet Ed Fuller (NIST), the current President of the American Ceramic Society and Paul Clem (Sandia National Laboratory), one of the conference organizers. Hope to see you in Orlando in 2011!
Barbie as a computer engineer? Make it happen!
Currently, Mattel is asking the general public (well, internet surfers) to help determine Barbie’s next career move by voting on a number of predetermined options. One option is a computer engineer. As a working female engineer at GE Global Research, I have to admit to being intrigued by thinking of Barbie representing my daily life to the millions of little girls growing up in the computer age.
join the conversation
comments
- Posted 3 days 16 hours ago:
Vin Smentkowski on Chemical Technologies and Materials Characterization - Posted 7 days 8 hours ago:
Richard Barrett on A more mobile future for MRI - Posted 7 days 9 hours ago:
Hugh H. Varner, Ph.D. on Chemical Technologies and Materials Characterization - Posted 7 days 11 hours ago:
Moira on Tracking my healthy “morsels” - Posted 10 days 10 hours ago:
Becky Norton on Congrats to Jim Cella, the 2010 ACS Award winner in Industrial Chemistry
editors
- 2010 Jan (22) Feb (32) Mar (10) Apr May Jun Jul Aug Sep Oct Nov Dec
- 2009 Jan (2) Feb (6) Mar (5) Apr (8) May (3) Jun (2) Jul (3) Aug (6) Sep (6) Oct (11) Nov (7) Dec (5)
- 2008 Jan (3) Feb (1) Mar (7) Apr (3) May (4) Jun (5) Jul (4) Aug (3) Sep (2) Oct (3) Nov (4) Dec (7)
- 2007 Jan (4) Feb (1) Mar (3) Apr (2) May (4) Jun (4) Jul (2) Aug (2) Sep (1) Oct (3) Nov (2) Dec (2)
- 2006 Jan (9) Feb (6) Mar (8) Apr (4) May (3) Jun (3) Jul (4) Aug (2) Sep (8) Oct (5) Nov (4) Dec (3)