File:Magsail MHD and kinematic model effective sail area.jpg

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Summary

Description
English: The figure plots the normalized effective sail area normalized by the coil area for the Magsail kinematic model (MKM) from Gros and for Zubrin for loop current a curve fit parameter plotted versus the spacecraft velocity relative to the speed of light assuming an Interstellar medium (ISM) plasma density of 1.7x10-22. Also plotted is the MHD applicability test of ion gyroradius divided by magnetopause radius < 1 on the secondary axis. Note that MHD applicability occurs at < 1%. For comparison, the 2004 Fujita model as a function of from the MHD applicability test section of the magnetic sail article is also plotted. Note that the Gros model predicts a more rapid decrease in effective area than this model. The normalized values of and track closely until 10% after which point the Zubrin magsail model becomes increasingly optimistic and the MKM model is applicable instead. Since the models track closely up to 10%, with the kinematic model underestimating effective sail area only for small values of (hence underestimating force),the MKM model is a good approximation for predicting generation of force both the MHD and kinematic region.
Date
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Author Dmcdysan

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Magsail MHD and kinematic model effective sail area

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31 July 2022

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File history

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Date/TimeThumbnailDimensionsUserComment
current20:14, 28 October 2023Thumbnail for version as of 20:14, 28 October 2023880 × 736 (93 KB)DmcdysanChanged font to 14 pt.
20:52, 6 September 2022Thumbnail for version as of 20:52, 6 September 20222,408 × 2,141 (354 KB)DmcdysanChanged ISM plasma density from 8.4 E-22 to 1.7 E-22.
22:50, 16 August 2022Thumbnail for version as of 22:50, 16 August 20222,391 × 2,091 (319 KB)DmcdysanAdded Fujita04 model to plot. Minor editorial changes
21:18, 31 July 2022Thumbnail for version as of 21:18, 31 July 20222,383 × 1,908 (289 KB)DmcdysanUploaded own work with UploadWizard

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