Structure for 3D Cartesian Grid created.

Unification of boundary conditions into one file.

Some changes to input file for reference cases. This should have been
done in another branch but I wanto to commit to save progress and I
don't want to deal with tswitching branches right now, I'm very busy
watching Futurama.

runs/1D_Cathode/inputRad.json

@@ -19,13 +19,16 @@
       "meshFile": "mesh.msh"
   },
   "species": [
-    {"name": "Electron", "type": "charged", "mass": 9.109e-31, "charge":-1.0, "weight": 1.0e1}
+    {"name": "Electron", "type": "charged", "mass": 9.109e-31, "charge":-1.0, "weight": 1.0e1},
+    {"name": "Argon+",   "type": "charged", "mass": 6.633e-26, "charge": 1.0, "weight": 1.0e1}
   ],
   "boundary": [ 
     {"name": "Cathode",  "physicalSurface": 1, "bTypes": [
+                                                  {"type": "absorption"},
                                                   {"type": "absorption"}
                                                 ]},
     {"name": "Infinite", "physicalSurface": 2, "bTypes": [
+                                                  {"type": "transparent"},
                                                   {"type": "transparent"}
                                                 ]}
   ],
@@ -35,17 +38,21 @@
   ],
   "inject": [
     {"name": "Cathode Electron", "species": "Electron", "flow":  1.0e-3, "units": "A", "v": 27500.0, "T": [2500.0, 2500.0, 2500.0],
-                                 "velDist": ["Maxwellian", "Maxwellian", "Maxwellian"],     "n": [ 1, 0, 0], "physicalSurface": 1}
+                                 "velDist": ["Maxwellian", "Maxwellian", "Maxwellian"],     "n": [ 1, 0, 0], "physicalSurface": 1},
+    {"name": "Plasma Inf Ar+",   "species": "Argon+",   "flow":  1.0e-6, "units": "A", "v": 500.0,   "T": [500.0, 500.0, 500.0],
+                                 "velDist": ["Maxwellian", "Maxwellian", "Maxwellian"],     "n": [-1, 0, 0], "physicalSurface": 2},
+    {"name": "Plasma Inf e",     "species": "Electron", "flow":  1.0e-6, "units": "A", "v": 500.0,   "T": [500.0, 500.0, 500.0],
+                                 "velDist": ["Maxwellian", "Maxwellian", "Maxwellian"],     "n": [-1, 0, 0], "physicalSurface": 2}
   ],
   "case": {
-    "tau":  [1.0e-11],
-    "time": 1.0e-7,
-    "pusher": ["1DRadCharged"],
+    "tau":  [1.0e-11, 1.0e-11],
+    "time": 1.0e-5,
+    "pusher": ["1DRadCharged", "1DRadCharged"],
     "EMSolver": "Electrostatic"
   },
   "parallel": {
     "OpenMP":{
-      "nThreads": 1
+      "nThreads": 24
     }
   }
 }

runs/1D_Cathode/mesh.geo

@@ -0,0 +1,16 @@
+Lcell = 0.00005;
+
+x0 = 0.001;
+xf = x0 + 100.0*Lcell;
+
+Point(1) = {x0, 0, 0, 1};
+Point(2) = {xf, 0, 0, 1};
+
+Line(1) = {1, 2};
+
+Physical Point(1) = {1};
+Physical Point(2) = {2};
+
+Physical Line(1) = {1};
+
+Transfinite Line {1} = (xf-x0)/Lcell + 1 Using Progression 1;