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Results for: prandtl glauert singularity

September 02, 2006

Photo of the Day: Flare Vortices

Couldn’t resist not posting this one. The same anonymous blog reader who provided a link to the picture of a Prandtl-Glauert Singularity sent me this one. (Btw, the old post is so popular in the SEs it now have close to 15,000 page views)

Flares

The United States Air Force C-17 Globemaster III Military Transport with the 14th Airlift Squadron located at Charleston Air Force Base in South Carolina has flown away after releasing flares over the Atlantic Ocean. Smoke from the flare salvo reveals a crisp, dramatic, startling, and beautiful visual of the turbulent air – including two vortices each with an “eye” – created by the C-17 Globemaster III as it flies through the air. May 16, 2006, Over the Atlantic Ocean Near Charleston, State of South Carolina, USA. {source}

Should be interesting to do some cloud photography on a nice day in Clark right? Too bad I’m going to miss 9/9 – A Culinary Tour of Pampanga 2.0.

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July 06, 2005

Photos: Prandtl-Glauert Singularity

jets

A blog reader sent me an email today and wanted to share some astonishing photos of flying jets escaping the sound barrier causing the Prandtl-Glauert singularity. As much as I wanted to give him credit for this, he asked not to be named or linked.

At speeds near that of sound, the temperature and pressure variations occurring at every speed can also be exaggerated in steady level flight. The mechanism for this near-sonic exaggeration of the temperature variations is the so-called Prandtl-Glauert singularity which requires that pressure and temperature perturbations approach ± ¥ as the flight speed approaches the ambient sound speed.

More pictures with captions here, here, here and here.

I am no physicist, but these pictures are awesome. :)

[tags]jets, airplane, wings, flight, sonic speed, flying[/tags]

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