Art-in-Science

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This content is associated with the DCASS Art-in-Science competition.

Breakdown

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An arc forms as the dielectric fails during an atmospheric pressure, wire-to-plate dielectric barrier discharge (DBD) in air. DBDs form the basis of plasma actuators, which are an emerging technology for controlling low-speed flows.

Stripes

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Multiple exposures of an atmospheric pressure, wire-to-plate dielectric barrier discharge (DBD) in air. DBDs may look homogeneous when viewed in real-time. However, they consist of many individual micro-discharges.

Grape

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Simulation of melting of paraffin wax in microfoam (pore size 180 microns). Volume fraction of liquid wax is shown in figure. Top surface is specified at a constant heat flux.

Archimedes Defeats Newton

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This is a horizontally issuing buoyant ethylene flame. Flow thru a 3/8 in tube at 9.82 SLPM. Imaged with a 40 microseconds exposure time using a Phantom v12.1 camera.

Red Hot Turbo Driven By Pulsed Detonations

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A Garrett GT2860R automotive turbocharger was coupled to a hydrogen-fueled pulsed detonation combustor to demonstrate the advantages of a low-entropy, pressure-gain combustion driven turbine. Research was conducted in the Air Force Research Laboratory (AFRL) Detonation Engine Research Facility. This image was taken during an 81 minute continuous run, in which the peak turbine housing temperature reached 1,014 deg F.

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