Working around bubbles in high speed wind

Bubbles in wind were prevented from forming by keeping the magnetic field from extending to the grid boundary where the wind comes in.

Why bubbles form when a significant magnetic field is in contact with the edge from which a high speed wind comes into the grid remains unanswered.

Description of attached images:

Image 1 (left): Linear false-color plot of magnetic field strength at setup with wire edge marked by ring. Note the hard outer boundary of the magnetic field.

Image 2 (right): Optical band emissivity map of simulation with: wind density = 0.01 mg/cc; wind velocity = 150 km/s; B = 7.5 T; sigma = 10.08

Image 3: bow shock and CD altitudes of this run (empty and filled squares) plotted against data (empty and filled circles) from previous runs with much greater wind density (2 - 20 mg/cc) and slower speeds (< 70 km/s).

From the combined results as shown in the plot, sigma alone can determine the altitude of the magnetosphere structures; rho, v and B at wire surface are degenerate.

Attachments (3)

Download all attachments as: .zip

Comments

No comments.