OOPIC Pro Product Tour

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OOPIC Pro arrives with several verified example model input files. You can run these examples to understand OOPIC Pro's capabilities and use them as a starting point to model your problem.

Sample input file modeling an electron beam colliding with a dielectric ring (model file dring.inp):

dring
{
 A dielectric ring is hit by a beam
}
Variables
{
  x1max = .1
  x2max = .02
  Jmax = 16
  Kmax = 16
}
Region
{
Grid
{
  J = Jmax
  x1s = 0.0
  x1f = x1max
  n1 = 1.0
  K = Kmax
  x2s = 0.0
  x2f = x2max
  n2 = 1.0
  Geometry = 0
}
Species
{
 name = electrons
 m = 9.11E-31
 q = -1.6e-19
}
Control
{
 dt = 1.0E-11
 ElectrostaticFlag = 1
}
BeamEmitter
{
 j1 = 0
 k1 = 0
 j2 = 0
 k2 = 10*Kmax/13
 normal = 1
 speciesName = electrons
 thetadot = 0.0
 I = 10
 np2c = 1.0E7
 v1drift = 1e8
 v2drift = 0
 v3drift = 0
 v1thermal = 0
 v2thermal = 0
 v3thermal = 0
}
Conductor
{
 er = 1
  Segment
  {
    j1 = 0
    k1 = 10*Kmax/13
    j2 = 0
    k2 = Kmax
    normal = 1
  }
}
Conductor
{
 er = 1
 j1 = 0
 k1 = Kmax
 j2 = Jmax
 k2 = Kmax
 normal = -1
}
Conductor
{
 er = 1
 j1 = Jmax
 k1 = Kmax
 j2 = Jmax
	k2 = 0
	normal = -1
}
DielectricRegion
{
	er = 100.0
	j1 = 3*Jmax/13
	k1 = 3*Kmax/13
	j2 = 10*Jmax/13
	k2 = 10*Kmax/13
	QuseFlag = 1
}
Diagnostic
{
	 HistMax = 512
	 Comb = 2
	 Ave = 0
	 j1 = 3*Jmax/13
	 k1 = 3*Kmax/13
	 j2 = 3*Jmax/13
	 k2 = 10*Kmax/13
	 VarName = phi
	 title = phi at edge of ring
	 x1_Label = radius
	 x2_Label = time
}
Diagnostic
{
	 HistMax = 512
	 Comb = 2
	 Ave = 0
	 j1 = 3*Jmax/13
	 k1 = 0
	 j2 = 3*Jmax/13
	 k2 = Kmax
	 VarName = Q
	 title = Charge at edge of ring
	 x1_Label = radius
	 x2_Label = time
}
CylindricalAxis
{
	j1 = 0
	k1 = 0
	j2 = Jmax
	k2 = 0
	normal = 1
}
}

A few nanoseconds into the simulation, the beam is colliding with the dielectric ring. Here, we see a cross section of the ring (orange square) in r-z space.

A wide variety of diagnostics are available...

Just check the boxes of the pre-loaded diagnostics you want to view at any time during the simulation.

OOPIC Pro has 2-D and 3-D diagnostics...

Plot of electron speed and position in U_z vs Z phase space for the dring problem.
Electric field in the Z direction vs R and Z. Electric field is due to charging of the dielectric ring in the dring problem.

OOPIC Pro 3-D diagnostics allow user adjustment of the viewing perspective...

Plot of electron speed and position in U_z vs Z phase space for the dring problem.

It is easy to make movies of any of the diagnostics...
Select the pictures below to view movies (in MPEG format) showing the growth of the electrostatic wave and the electron motion in the wave for the the classic two-stream instability problem.

Flash recording of an OOPIC Pro Session
(Requires Flash player plug-in)

OOPIC Pro Flash Demo