HEDLA Jet meeting 12/15/2020 -- Baowei

1. setup and parameters

Box: 60x60 mm
radius_wire = 0.25 mm
distance_between_centers = 7.5 mm
MagField_direction = 0, 1, 0

WindMaterial = 27
rhoWind = 1e18 1/cc
velWind = 6e1 km/s
BWind = 1T !varies see table
TempWind = 12 ev or 1.39e5 K

dx= 15.625e-4 cm
ratio_sizeWire_dx= 32
runTime: 426ns or ~0.4 domain crossing time, or 3.4 wire distance crossing time
imomentumProtect=1

Boundary & Clump for wires

  lBoundary=.true.  ! Use a boundary (instead of a high density barrier)
  DiffusionFactor = 1 !Factor to multiply velocity and finest level dx by for determining the diff_alpha2 parameter...  Shouldn't be larger than 1....
  MagneticDiffusionLength = 0.3 !cm
  MagneticDiffusionLengthWire = 0.0 !cm

  lBoundary=.false.  ! Use a boundary (instead of a high density barrier)
  DiffusionFactor = 1 !Factor to multiply velocity and finest level dx by for determining the diff_alpha2 parameter...  Shouldn't be larger than 1....
  MagneticDiffusionLength = 0.3 !cm
  MagneticDiffusionLengthWire = 0.0 !cm

2. Results: Click for movies

runs 298 ns 426 ns
setup 2, bounary; ;
setup 2, clump; ;

Note and Each picture shows lineouts at three locations shown here

Each plot shows

  • ram + thermal pressure
  • magnetic pressure
  • total pressure
  • density
  • magnetic field
  • velocity (in x)
  • Temperature

And the values are scaled as follows

Density 1e17 cm-3
Pressure Mbar
B Tesla
T eV
v 10 km/s


The middle panel time range varies !!

runs 298 ns 426 ns
setup 2, line-outs, boundary;;
setup 2, line-outs clump; ;


More movies

boundary run ​rhoScaled;​Zoomed rhoScaled;​Temp; ​mach;​magPressure;
clump ​rhoScaled;​Zoomed rhoScaled;​Temp; ​mach;​magPressure;

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