Our favorite grade-schooler and tiger have been absent too long from these pages, something we’re rectifying today:
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6 comments to Sunday With CalvinLeave a Reply |
Dream Chaser Buffet Wind Tunnel Model  The Dream Chaser model with its Atlas V launch vehicle is undergoing final preparations at the Aerospace Composite Model Development Section's workshop for buffet tests at the Transonic Dynamics Tunnel at NASA Langley. The scale model is being tested as part of NASA's Commercial Crew Development program to regain the American capability to launch astronauts safely to the International Space Station. The lifting body reusable spacecraft would carry as many as seven astronauts to the space station. Sierra Nevada Space Systems is developing the craft under a Space Act Agreement with NASA. With the help of hundreds of pressure transducers, engineers from Sierra Nevada Corporation, the United Launch Alliance and NASA Langley will look at the pressure fluctuations the model and launch vehicle stack experience during the critical ascent to orbit, especially at transonic speeds. Shock-waves form on launch vehicles as they approach the speed of sound and may result in regions of highly unsteady flow. Within these regions of the Dream Chaser and launch vehicle, the resulting buffet forces and high frequency acoustic noise must be clearly understood as part of the vehicle design process. Transonic wind-tunnel testing of large, highly instrumented scale models is the only method of determining the buffet environments of launch vehicles with complex shapes. Image Credit: NASA EDGE/Ron Beard Read More Planned books:None Current books:
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SJS, your graphics and images are all squished on the main page but when I view individual posts they return to correct width.
Code is poetry….
Disregard my last. Must have had my hat on too tight. Now they’re correct but I swear they weren’t earlier.
Steve: No, you’re not going nuts (yet). I’ve found if you’re viewing in MS IE 6 or later they tend to do that until the page finishes loading. Firefox doesn’t (insert editorial comment about Micro$oft here)…
- SJS
My 9-year old son has every Calvin book and we hear about it all the time.
I, of course, can’t stop laughing just looking at Calvin…
SJS, my favorite snow CH is the one where Calvin built the snowmen in front of his dads car like they are being run over. the parents in the house thinking about contacting a psychiatrist.
Sad day when Watterson stopped the strip (same with farside), sadder how nuts he’s getting nowadays.
Claudio: Found & posted per your wish …
- SJS