modified: anasen_fem/run.py

modified:   anasen_fem/scalars.dat
	modified:   anasen_fem/scalars.dat.names
	modified:   anasen_fem/wires2d.sif
	modified:   anasen_fem/wires_gmsh2d_bc.py included IC and hot needle to simulations

anasen_fem/run.py

@@ -18,4 +18,4 @@ while val<178.3+0.1:
 
     val=val+17.83
     count = count + 1
-
+    break

anasen_fem/scalars.dat

@@ -1 +1 @@
-   6.500000000000E+002
+   8.500000000000E+002

anasen_fem/scalars.dat.names

@@ -2,7 +2,7 @@ Metadata for SaveScalars file: ./scalars.dat
 Elmer version: 26.1
 Elmer compilation date: 2026-03-15
 Solver input file: wires2d.sif
-File started at: 2026/03/31 16:47:17
+File started at: 2026/04/01 17:39:04
  
 Variables in columns of matrix: 
    1: res: potential difference

anasen_fem/wires2d.sif

@@ -84,20 +84,36 @@ Solver 4
  Filename = "scalars.dat"
 End
 
-
 Boundary Condition 1
+  Target Boundaries = 1
+  Potential = -200
+  Calculate Electric Force = True
+End
+
+Boundary Condition 2
+  Target Boundaries = 2
+  Potential = 150
+  Calculate Electric Force = True
+End
+
+Boundary Condition 3
+  Target Boundaries = 3
+  Potential = 250
+  Calculate Electric Force = True
+End
+
+Boundary Condition 4
   Target Boundaries = 10
   Potential = 0
 End
 
-
+Boundary Condition 5
-Boundary Condition 2
   Target Boundaries = 20
   Potential = 650
   Calculate Electric Force = True
 End
 
-Boundary Condition 3
+Boundary Condition 6
   Target Boundaries = 30
   Potential = 0
 End

anasen_fem/wires_gmsh2d_bc.py

@@ -1,6 +1,10 @@
 import numpy as np
 import gmsh,sys
 
+# --- Configuration Flags ---
+include_ic_wires = True  
+include_needle = True
+
 gmsh.initialize()
 gmsh.model.add("adaptive_mesh")
 gmsh.option.setNumber('General.NumThreads', 10)
@@ -23,11 +27,26 @@ z_loc = float(sys.argv[1])
 
 k=(2*np.pi/24.)
 
+#1 needle, 24 ic1, 24 ic2, 48 guard wires, 24 anodes, 24 cathodes
+
+#needle at plane 1 at -zmax/2
+xarr_needle = np.array([0])
+yarr_needle = np.array([0])
+
+#ic1 wires, plane 1 at -zmax/2
+ki=2*np.pi/24.
+xarr_i11 = np.array([23 * np.cos(ki * i) for i in range(24)])
+yarr_i11 = np.array([23 * np.sin(ki * i) for i in range(24)])
+
+#ic1 wires, plane 1 at -zmax/2
+xarr_i21 = np.array([23 * np.cos(ki * i + ki/2.0) for i in range(24)])
+yarr_i21 = np.array([23 * np.sin(ki * i + ki/2.0) for i in range(24)])
+
 #guard wires, plane 1 at -zmax/2
-kg=2*np.pi/24.
+kg=2*np.pi/48. 
 offsetg = -4*kg + 2*kg -  np.pi/24 #-pi/4
-xarrg_1 = np.array([32*np.cos(kg*i+offsetg) for i in np.arange(0,24)])
+xarrg_1 = np.array([32*np.cos(kg*i+offsetg) for i in np.arange(0,48)])
-yarrg_1 = np.array([32*np.sin(kg*i+offsetg) for i in np.arange(0,24)])
+yarrg_1 = np.array([32*np.sin(kg*i+offsetg) for i in np.arange(0,48)])
 
 #anodes, plane 1 at -zmax/2
 k=-2*np.pi/24.
@@ -41,10 +60,22 @@ offsetc = -4*kc + 2*kc -  np.pi/24 #-pi/4
 xarrc_1 = np.array([42*np.cos(kc*i+offsetc) for i in np.arange(0,24)])
 yarrc_1 = np.array([42*np.sin(kc*i+offsetc) for i in np.arange(0,24)])
 
+#needle at plane 2 at zmax/2
+xarr_needle_2 = np.array([0])
+yarr_needle_2 = np.array([0])
+
+# #ic1 wires, plane 2 at zmax/2
+xarr_i12 = np.array([23 * np.cos(ki * i) for i in range(24)])
+yarr_i12 = np.array([23 * np.sin(ki * i) for i in range(24)])
+
+# #ic2 wires, plane 2 at zmax/2
+xarr_i22 = np.array([23 * np.cos(ki * i + ki/2.0) for i in range(24)])
+yarr_i22 = np.array([23 * np.sin(ki * i + ki/2.0) for i in range(24)])
+
 #guard wires, plane 2 at +zmax/2
 offsetg = offsetg-3*kg
-xarrg_2 = np.array([32*np.cos(kg*i+offsetg) for i in np.arange(0,24)])
+xarrg_2 = np.array([32*np.cos(kg*i+offsetg) for i in np.arange(0,48)])
-yarrg_2 = np.array([32*np.sin(kg*i+offsetg) for i in np.arange(0,24)])
+yarrg_2 = np.array([32*np.sin(kg*i+offsetg) for i in np.arange(0,48)])
 
 #anodes, plane 2 at +zmax/2
 offset = offset-3*k
@@ -56,6 +87,15 @@ offsetc = offsetc-3*kc
 xarrc_2 = np.array([42*np.cos(kc*i+offsetc) for i in np.arange(0,24)])
 yarrc_2 = np.array([42*np.sin(kc*i+offsetc) for i in np.arange(0,24)])
 
+direction_needle_x = xarr_needle_2 - xarr_needle
+direction_needle_y = yarr_needle_2 - yarr_needle
+
+direction_ic1_x = xarr_i12 - xarr_i11
+direction_ic1_y = yarr_i12 - yarr_i11
+
+direction_ic2_x = xarr_i22 - xarr_i21
+direction_ic2_y = yarr_i22 - yarr_i21
+
 direction_guard_x = xarrg_2 - xarrg_1
 direction_guard_y = yarrg_2 - yarrg_1
 
@@ -66,6 +106,13 @@ direction_cathodes_x = xarrc_2 - xarrc_1
 direction_cathodes_y = yarrc_2 - yarrc_1
 
 t = (z_loc+178.3)/(2*178.3) #z=-178.3 is 0, z=+178.3 is 1
+
+xloc_needle = xarr_needle + t*direction_needle_x
+yloc_needle = yarr_needle + t*direction_needle_y
+xloc_i1 = xarr_i11 + t*direction_ic1_x
+yloc_i1 = yarr_i11 + t*direction_ic1_y
+xloc_i2 = xarr_i21 + t*direction_ic2_x
+yloc_i2 = yarr_i21 + t*direction_ic2_y
 xloc_g = xarrg_1 + t*direction_guard_x
 yloc_g = yarrg_1 + t*direction_guard_y
 xloc_a = xarra_1 + t*direction_anodes_x
@@ -77,23 +124,44 @@ yloc_c = yarrc_1 + t*direction_cathodes_y
 # wire_radius_c = 0.0762 #mm
 # wire_radius_g = 0.0762 #mm
 wire_radius = 0.254 #mm
+needle=[]
+ic1_wires = []
+ic2_wires = []
 guard_wires = []
 anode_wires = []
 cathode_wires = []
-gw_tags = [(3,i+24) for i in range(24)]
+iw1_tags = [(3,i) for i in range(24)]
+iw2_tags = [(3,i+24) for i in range(24)]
+gw_tags = [(3,i+48) for i in range(48)]
 aw_tags = [(3,i) for i in range(24)]
 cw_tags = [(3,i+24) for i in range(24)]
 
 #for i,[xa,ya,xc,yc] in enumerate(zip(xarra_1,yarra_1,xarrc_1,yarrc_1)):
-for i,[xg,yg,xa,ya,xc,yc] in enumerate(zip(xloc_g,yloc_g,xloc_a,yloc_a,xloc_c,yloc_c)):
+#create Hot Needle (1 total)
-    print(i,xg,yg,-178.3,xa,ya,-178.3,xc,yc,-178.3)
+for i, (xn, yn) in enumerate(zip(xloc_needle, yloc_needle)):
-    gdisk = gmsh.model.occ.addDisk(xg,yg,0,wire_radius,wire_radius)
+    if include_needle:
-    adisk = gmsh.model.occ.addDisk(xa,ya,0,wire_radius,wire_radius)
+        ndisk = gmsh.model.occ.addDisk(xn, yn, 0, wire_radius, wire_radius)
-    cdisk = gmsh.model.occ.addDisk(xc,yc,0,wire_radius,wire_radius)
+        needle.append(ndisk)    
+
+#create Guard Wires (48 total)
+for i, (xg, yg) in enumerate(zip(xloc_g, yloc_g)):
+    gdisk = gmsh.model.occ.addDisk(xg, yg, 0, wire_radius, wire_radius)
     guard_wires.append(gdisk)
+
+#create IC Anode and Cathode Wires (24 total each)
+for i, (xa, ya, xc, yc) in enumerate(zip(xloc_a, yloc_a, xloc_c, yloc_c)):
+    adisk = gmsh.model.occ.addDisk(xa, ya, 0, wire_radius, wire_radius)
+    cdisk = gmsh.model.occ.addDisk(xc, yc, 0, wire_radius, wire_radius)
     anode_wires.append(adisk)
     cathode_wires.append(cdisk)
     
+    # Place IC wires only if flag is True
+    if include_ic_wires:
+        i1disk = gmsh.model.occ.addDisk(xloc_i1[i], yloc_i1[i], 0, wire_radius, wire_radius)
+        i2disk = gmsh.model.occ.addDisk(xloc_i2[i], yloc_i2[i], 0, wire_radius, wire_radius)
+        ic1_wires.append(i1disk)
+        ic2_wires.append(i2disk)
+
 anasen_barrel = gmsh.model.occ.addDisk(0,0,0,500,500)
 #gmsh.model.occ.synchronize()
 #gmsh.model.mesh.embed(1,anode_wires+cathode_wires,2,anasen_barrel)
@@ -102,50 +170,54 @@ gmsh.option.setNumber("Geometry.Tolerance", 1e-6)
 gmsh.option.setNumber("Geometry.OCCFixDegenerated", 1)
 gmsh.model.occ.synchronize()
 
-gwire_surfs = []
+# --- Surface Extraction ---
-for w in guard_wires:
+def get_surfs(disks):
-    gwire_surfs += [s[1] for s in gmsh.model.getBoundary([(2,w)], oriented=False) if s[0] == 1]
+    surfs = []
+    for d in disks:
+        surfs += [s[1] for s in gmsh.model.getBoundary([(2,d)], oriented=False) if s[0] == 1]
+    return surfs
 
-awire_surfs = []
+needle_surfs = get_surfs(needle) if include_needle else []
-for w in anode_wires:
+gwire_surfs = get_surfs(guard_wires)
-    awire_surfs += [s[1] for s in gmsh.model.getBoundary([(2,w)], oriented=False) if s[0] == 1]
+awire_surfs = get_surfs(anode_wires)
-
+cwire_surfs = get_surfs(cathode_wires)
-cwire_surfs = []
+i1wire_surfs = get_surfs(ic1_wires) if include_ic_wires else []
-for w in cathode_wires:
+i2wire_surfs = get_surfs(ic2_wires) if include_ic_wires else []
-    cwire_surfs += [s[1] for s in gmsh.model.getBoundary([(2,w)], oriented=False) if s[0] == 1]
-gmsh.model.mesh.embed(1,cwire_surfs+awire_surfs+gwire_surfs,2,anasen_barrel)
-
-for s in gmsh.model.getBoundary([(2,w)],oriented=False):
-    if s[0] == 1:
-        anasen_bdry=s[1]
 
 
-f1 = gmsh.model.mesh.field.add("Distance")
+all_active_wire_surfs = needle_surfs + gwire_surfs + awire_surfs + cwire_surfs + i1wire_surfs + i2wire_surfs
-gmsh.model.mesh.field.setNumbers(f1,"CurvesList",cwire_surfs+awire_surfs+gwire_surfs)
+gmsh.model.mesh.embed(1, all_active_wire_surfs, 2, anasen_barrel)
     
-f2 = gmsh.model.mesh.field.add("Threshold")
+# f1 = gmsh.model.mesh.field.add("Distance")
-gmsh.model.mesh.field.setNumber(f2,"InField",f1)
+# gmsh.model.mesh.field.setNumbers(f1, "CurvesList", all_active_wire_surfs)
-gmsh.model.mesh.field.setNumber(f2,"SizeMin",0.1)
-gmsh.model.mesh.field.setNumber(f2,"SizeMax",5)
-gmsh.model.mesh.field.setNumber(f2,"DistMin",1)
-gmsh.model.mesh.field.setNumber(f2,"DistMax",20)
 
-gmsh.model.mesh.field.setAsBackgroundMesh(f2)
+# f2 = gmsh.model.mesh.field.add("Threshold")
+# gmsh.model.mesh.field.setNumber(f2, "InField", f1)
+# gmsh.model.mesh.field.setNumber(f2, "SizeMin", 0.1)   # Fine mesh near wires
+# gmsh.model.mesh.field.setNumber(f2, "SizeMax", 10.0)  # Large mesh in empty space
+# gmsh.model.mesh.field.setNumber(f2, "DistMin", 1.0)   # Apply SizeMin within 1mm
+# gmsh.model.mesh.field.setNumber(f2, "DistMax", 20.0)  # Transition to SizeMax by 20mm
 
-gmsh.model.addPhysicalGroup(1, gwire_surfs, tag=10)
+# gmsh.model.mesh.field.setAsBackgroundMesh(f2)
-gmsh.model.setPhysicalName(1,10,"guard_wires")
 
-gmsh.model.addPhysicalGroup(1, awire_surfs, tag=20)
-gmsh.model.setPhysicalName(1,20,"anode_wires")
 
-gmsh.model.addPhysicalGroup(1, cwire_surfs, tag=30)
+# --- Physical Groups ---
-gmsh.model.setPhysicalName(1,30,"cathode_wires")
+# Needle
+if include_needle:
+    gmsh.model.addPhysicalGroup(1, needle_surfs, tag=1, name="hot_needle")
 
-#gmsh.model.addPhysicalGroup(1, [anasen_bdry], tag=30)
+# IC Wires
-#gmsh.model.setPhysicalName(1,30,"barrel_boundary")
+if include_ic_wires:
+    gmsh.model.addPhysicalGroup(1, i1wire_surfs, tag=2, name="ic_wire_1")
+    gmsh.model.addPhysicalGroup(1, i2wire_surfs, tag=3, name="ic_wire_2")
 
-gmsh.model.addPhysicalGroup(2,[anasen_barrel],tag=13)
+# Proportional Counter Wires
-gmsh.model.setPhysicalName(1,13,"gas")
+gmsh.model.addPhysicalGroup(1, gwire_surfs, tag=10, name="guard_wires")
+gmsh.model.addPhysicalGroup(1, awire_surfs, tag=20, name="anode_wires")
+gmsh.model.addPhysicalGroup(1, cwire_surfs, tag=30, name="cathode_wires")
+
+# Gas Volume (2D)
+gmsh.model.addPhysicalGroup(2, [anasen_barrel], tag=13, name="gas")
 
 gmsh.option.setNumber("Mesh.Algorithm", 6)