Difference between revisions of "Medium mover"
(Created page with "With APM one can construct devices which act as pumps and fans that seem to have no moving parts and are only acustically perceivable when something is hold into the (laminar)...") |
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| − | With APM one can construct devices which act as pumps and fans that seem to have no moving parts and are only acustically perceivable when something is hold into the (laminar) airstream. | + | With APM one can construct devices which act as pumps and fans that seem to have no moving parts and are only acustically perceivable when something is hold into the (designed to be laminar) airstream making it turbolent. |
| − | Including arrays of micro sized fans into a flexible metamaterial is called a fancloth (a concept | + | == Miniaturized Fans == |
| + | |||
| + | Including arrays of micro sized fans into a sheet of in-plane-flexible but not stretchable [[metamaterial]] is called a fancloth (a concept devised by J. Storrs Hall). Its a bit like an active sail. | ||
| + | |||
| + | == Facilitating [[capsule transport]] == | ||
Air accelerators: | Air accelerators: | ||
| − | One possibility may be to capture air or liquid | + | One possibility may be to capture air (or any gas) or droplets of liquid at the entrance completely (not partially like in the following moving surfaces case) |
| − | When dealing with gasses one must take care | + | and use [[capsule transport]] to move and maybe accelerate this batch and release it at the outlet side. |
| + | When dealing with gasses one must take care. One can unintentional build a [[diamondoid heat pump system|heat pump]]. | ||
| + | |||
| + | == Moving Surfaces == | ||
| + | |||
| + | This is for airplanes (and submarines?). | ||
| + | |||
| + | Also from J. Storrs Hall is the concept of wheels turning on the surfaces (flat moving surfaces might work even better) to reduce aerodynamic drag to the negative regieme. High speeds need either [[infinitesimal bearings]] or special [[levitated bearings]] that can deal with the pressure. Things get interesting when the speed of sound gets approached. Its like a nano-turbomolecular-pump running at ambient air pressure (but with pre accelerated molecules). ['''Todo:''' How much analysis is present?] | ||
| + | |||
| + | What essentially happens here is inside out capsule transport. One replaces aerodynamic drag with the way lower [[superlubrication]] drag. Except for the displacement at the front and back the air "thinks" the plane is standing. | ||
Revision as of 08:55, 18 May 2014
With APM one can construct devices which act as pumps and fans that seem to have no moving parts and are only acustically perceivable when something is hold into the (designed to be laminar) airstream making it turbolent.
Miniaturized Fans
Including arrays of micro sized fans into a sheet of in-plane-flexible but not stretchable metamaterial is called a fancloth (a concept devised by J. Storrs Hall). Its a bit like an active sail.
Facilitating capsule transport
Air accelerators: One possibility may be to capture air (or any gas) or droplets of liquid at the entrance completely (not partially like in the following moving surfaces case) and use capsule transport to move and maybe accelerate this batch and release it at the outlet side. When dealing with gasses one must take care. One can unintentional build a heat pump.
Moving Surfaces
This is for airplanes (and submarines?).
Also from J. Storrs Hall is the concept of wheels turning on the surfaces (flat moving surfaces might work even better) to reduce aerodynamic drag to the negative regieme. High speeds need either infinitesimal bearings or special levitated bearings that can deal with the pressure. Things get interesting when the speed of sound gets approached. Its like a nano-turbomolecular-pump running at ambient air pressure (but with pre accelerated molecules). [Todo: How much analysis is present?]
What essentially happens here is inside out capsule transport. One replaces aerodynamic drag with the way lower superlubrication drag. Except for the displacement at the front and back the air "thinks" the plane is standing.
