Difference between revisions of "Evanescent waves"
From EM Drive
(Added a page explaining the status of the evanescent wave theory.) |
(Added links from @aero) |
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No longer considered a viable source of thrust. | No longer considered a viable source of thrust. | ||
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== Evidence == | == Evidence == | ||
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Utilizing [http://ab-initio.mit.edu/wiki/index.php/Meep MEEP], the conclusion was that due to rapid dropoff at the frustum surface, evanescent waves were of insufficient magnitude to explain the observed thrust.<ref>[http://forum.nasaspaceflight.com/index.php?topic=36313.msg1330521#msg1330521 this post by @aero on modeled evanescent waves]</ref> | Utilizing [http://ab-initio.mit.edu/wiki/index.php/Meep MEEP], the conclusion was that due to rapid dropoff at the frustum surface, evanescent waves were of insufficient magnitude to explain the observed thrust.<ref>[http://forum.nasaspaceflight.com/index.php?topic=36313.msg1330521#msg1330521 this post by @aero on modeled evanescent waves]</ref> | ||
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| + | == Relevant Papers == | ||
| + | This list was assembled by Aero<ref>[http://forum.nasaspaceflight.com/index.php?topic=37642.msg1382092#msg1382092 Forum post by @aero]</ref> | ||
| + | |||
| + | * http://arxiv.org/pdf/1308.0547.pdf - See Supplementary Table 1. | ||
| + | * http://arxiv.org/pdf/0712.0347.pdf | ||
| + | * http://wwwsis.lnf.infn.it/pub/INFN-FM-00-04.pdf - I like Appendix B | ||
| + | * http://arxiv.org/pdf/1211.0530v2.pdf - This one just hints at our situation. | ||
| + | * http://bit.ly/1Ja6QLV - Again, hints | ||
| + | * http://tuttle.merc.iastate.edu/ee439/topics/tunneling.pdf - Tunneling and evanescent wave math are very similar. | ||
| + | * http://en.wikipedia.org/wiki/Maxwell_stress_tensor - Not quite sure why this is here, maybe the stress-energy tensor derivation? | ||
== References == | == References == | ||
<references /> | <references /> | ||
Revision as of 13:53, 30 May 2015
As proposed by Aero on the NSF forums, the possibility that the thrust is occurring as a result of the generation/leakage of evanescent waves.
Contents
Status
No longer considered a viable source of thrust.
Evidence
Initial calculations by Aero were showing an efficiency rating 2-3 times that of a perfect photon drive, which is beneath the observed ratings of Q-thruster test articles.[1]
Utilizing MEEP, the conclusion was that due to rapid dropoff at the frustum surface, evanescent waves were of insufficient magnitude to explain the observed thrust.[2]
Relevant Papers
This list was assembled by Aero[3]
- http://arxiv.org/pdf/1308.0547.pdf - See Supplementary Table 1.
- http://arxiv.org/pdf/0712.0347.pdf
- http://wwwsis.lnf.infn.it/pub/INFN-FM-00-04.pdf - I like Appendix B
- http://arxiv.org/pdf/1211.0530v2.pdf - This one just hints at our situation.
- http://bit.ly/1Ja6QLV - Again, hints
- http://tuttle.merc.iastate.edu/ee439/topics/tunneling.pdf - Tunneling and evanescent wave math are very similar.
- http://en.wikipedia.org/wiki/Maxwell_stress_tensor - Not quite sure why this is here, maybe the stress-energy tensor derivation?
