42nd Dayton-Cincinnati
Aerospace Sciences Symposium

Archive page for the 39th DCASS

Below are items from the 39th DCASS, held 5 March 2014.

Documents in PDF format


Call for Abstracts (111 KB)
Art in Science Flyer (334 KB)
Session Chair Instructions (14 KB)
Final Program (912 KB)

Best Presentation Winners



Art-in-Science Competition Winners


(Click on the image to view the original submitted file.)

1st Place Image

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Fire in His Eyes

Tim Erdmann
Innovative Scientific Solutions Inc.
Jeff Monfort
University of Dayton Research Institute
Daniel Richardson
National Research Council
Craig Neuroth, Dale Shouse
Air Force Research Laboratory

This photo is of the flame vortex inside of a cavity in the Ultra-Compact Combustor looking through the side window showing airflow, fuel flow, and the flame vortex. The inlet condition was 500 degrees Fahrenheit and 100 psia with a 1.1 cavity equivalence ratio. The photo was taken with a handheld Canon Rebel Ti camera at 1/2500 sec, f8.0, and ISO 80.

2nd Place Image

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Who Put the Pterosaur in My Inlet Diffuser!?

Darius Sanders
Air Force Research Laboratory

This is a contour of the axial component of the wall shear stress on the upper surface of a serpentine inlet diffuser. The contour range was narrowed to highlight negative values of the axial shear stress. It was used to indicate the the location and extent of the separation region on the diffuser surface.

3rd Place Image

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Branches on a Winter Day

Sheena Winder
Air Force Institute of Technology

Interaction of Hafnium Diboride and Yttrium-Aluminum-Garnet in the Presence of Platinum. Al- and O-containing deposit on Pt foil after exposure to HfB2 and yttria-aluminum-garnet after 24 hrs at 1500C in air.

1st Place Video

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Large Eddy Simulation of Mach 2.25 flow in a 2:1 duct

Nicholas Bisek
Air Force Research Laboratory

A high-order implicit Large Eddy Simulation (with 1.1 billion cells) of Mach 2.25 turbulent flow in a 2:1 duct. A trip, located at the beginning of the domain, causes the flow on each wall to rapidly transition and aids in the transition of the flow near the corner. In addition, the high resolution and 6th-order numerical scheme are able to preserve the acoustic noise generated by the turbulent boundary-layer flow as it radiates through the duct's inviscid core (as seen by the instantaneous pressure contours at the domain exit).



Event Photos


(Click on an image to view the original, higher resolution image.)

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General Chair, Rich Anthony, welcomes attendees to DCASS

 

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General Chair, Rich Anthony, welcomes attendees to DCASS

 

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Rich Anthony introduces special guest, Mr. Ebersole
Director of the Aerospace Systems Directorate
Air Force Research Laboratory

 

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Special guest Mr. Ebersole with opening remarks

 

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Mr. Honneywell delivering the keynote

 

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Mr. Honneywell delivering the keynote

 

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Mr. Honneywell delivering the keynote

 

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Mr. Honneywell delivering the keynote

 

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Rich Anthony presents Mr. Honneywell with a model of the
Wright B Flyer as a thank you for delivering the keynote

 

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Organizing committee with Keynote, Mr. Honneywell,
and special guest, Mr. Ebersole

 

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