Transcript Cap stone Session Summary and comments Challenges and problems • Detailed modeling of the Physics • Needed to develop optimized concept High temporal and spatial.

Cap stone Session
Summary and comments
Challenges and problems
• Detailed modeling of the Physics
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Needed to develop optimized concept
High temporal and spatial resolution required
May be separable from the controlled phenomena
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Validation is required
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Experiments that resolve the appropriate phenomenon and scale
• Heuristic models based on experimental results
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Valuable for guiding applications
• Scaling
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Up to large scale – vehicle flow control, combustion and engine performance, large scale
materials fabrication
Down to micro scale – micro turbines,
• Control, control, control
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Environment
Complex shapes
Flow Control
• Dielectric barrier discharges
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Opportunities to control extend well beyond low speed flows
Thick dielectrics and high voltage
Pulse generation of micro shocks – nsec discharges
• Use of natural instabilities
• Off body energy addition
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Steering and drag reduction now seem plausible with laser guided
microwave
• New concepts
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Plasma array phase controlled mirror for adaptive optics
Plasma sensors (replace hot wires, etc.)
Energy
• Lean flammability limit
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Nanosecond pulses for radical formation
Microwave coupling to flames
Improved plasma spark plug
• Fuel reformation
• Micro scale combustion
• Low temperature chemistry
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Why do we do combustion the way we do it?
Run engines at 600 K or below
Get rid of the carburetor
• Plasma controlled chemistry
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Control the energy in selected modes of species
Materials
• Plasma surface processing
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TiO2 implantation in asphalt
Food decontamination and processing
• Nanoscale crystal fabrication
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Semiconducting materials
Two photon luminescence
• Carbon nanotubes
• Surface layer fabrication
• Use of plasmas to precondition gas phase molecules
• Use of plasmas to enhance surface atom mobility
• Scaling up
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Four lane highway
Vehicle decontamination
Rust treatment
• New Plasma fabricated materials- multifunctional materials
• Direct write plasma methods
• Localized
Comments
• DARPA comments
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There are two scenarios at DARPA
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Short term – the benefit must be compelling to buy onto an existing system
Long term – game changing technologies
• Long term possibilities – need for innovation and out of the box
thinking
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UAV opportunities - the field has not gelled – lots of concepts to be developed
– Small scale (below the predator)
– High efficiency propulsion
– Energy storage
Energy
– Micro scale heat transfer
– Low temperature chemistry – get rid of the combustor
– Use of single fuel (JP-8)
– Replace batteries – carrying and changing are liabilities for combat
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Materials
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– Suppress rusting (big issue for the Navy)
• Other comments
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New plasma based sensor technologies
Micro plasmas for small scale devices.