testcases polydisperse

testcases/New_testcases/FaletraGrainA.py

@@ -74,7 +74,7 @@ forces = g*p.mass()
 while t < tEnd : 
    # if (ii%50==0 and ii != 0):
     #   fluid.adapt_mesh(0.01,50,4e-5,autoEpsilon)
-    forces = fluid.compute_node_force(dt,r*10)
+    forces = fluid.compute_node_force(dt,r*100)
     vn = p.velocity() + forces * dt / p.mass()
     vmax = np.max(np.hypot(vn[:, 0], vn[:, 1]))
     nsub = max(1, int(np.ceil((vmax * dt * 4)/min(10*p.r()))))

testcases/New_testcases/Terfous/Terfous.py

@@ -8,18 +8,18 @@ import time
 import shutil
 import random
 
-def genInitialPosition(filename, r, rout, rhop) :
+def genInitialPosition(filename, r, rhop) :
     p = scontact2.ParticleProblem()
     p.load_msh_boundaries("mesh.msh", ["Top", "Bottom","Left","Right"])
         
     p.add_particle((0, 0), r, r**2 * np.pi * rhop);
 
-    p.position()[:, 1] += 0.45
+    p.position()[:, 1] += 1.7
     p.write(filename)
 
 
 
-outputdir = "output"
+outputdir = "outputc"
 if not os.path.isdir(outputdir) :
     os.makedirs(outputdir)
 
@@ -51,7 +51,7 @@ shutil.copy("mesh.msh", outputdir +"/mesh.msh")
 #scontact2Interface.MeshLoader(p, "funnel.msh", ("Funnel", "Top", "Bottom", "Lateral"))
 p.write(outputdir+"/part-00000")
 
-genInitialPosition(outputdir + "/part-00000", r, 1e-3, rhop)
+genInitialPosition(outputdir + "/part-00000", r, rhop)
 
 p = scontact2.ParticleProblem(outputdir+"/part-00000")
 
@@ -72,7 +72,7 @@ ii = 0
 tic = time.clock()
 forces = g*p.mass()
 while t < tEnd : 
-    forces = fluid.compute_node_force(dt)
+    forces = fluid.compute_node_force(dt,10*r)
     vn = p.velocity() + forces * dt / p.mass()
     vmax = np.max(np.hypot(vn[:, 0], vn[:, 1]))
     nsub = max(1, int(np.ceil((vmax * dt * 4)/min(10*p.r()))))

testcases/New_testcases/Terfous/mesh.geo

 L = 0.075;
 H = 2;
 y = 0;
-lc = 0.001;
+lc = 0.02;
 
-Point(1) = {-L, H, 0};
-Point(2) = {-L, 0, 0};
-Point(3) = {L, 0, 0};
-Point(4) = {L, H, 0};
+Point(1) = {-L, H, 0, lc};
+Point(2) = {-L, 0, 0, lc};
+Point(3) = {L, 0, 0, lc};
+Point(4) = {L, H, 0, lc};
 Line(1) = {1, 2};
 Line(2) = {2, 3};
 Line(3) = {3, 4};
 Line(4) = {4, 1};
-Point(5) = {0,.25,0};
-Point(6) = {0,H,0};
-Line(5) = {5,6};
-
 Line Loop(1) = {1:4};
 
 Plane Surface(1) = {1};
@@ -24,19 +20,3 @@ Physical Line("Left") = {1};
 Physical Line("Right") = {3};
 Physical Surface("Domain") = {1};
 Physical Point("PtFix") = {1};
-
-Field[1] = Attractor;
-Field[1].EdgesList = {5};
-Field[1].NNodesByEdge = 200;
-
-Field[2] = Threshold;
-Field[2].DistMax = 0.08;
-Field[2].DistMin = 0.04;
-Field[2].LcMax = 0.08;
-Field[2].LcMin = 0.05;
-Field[2].IField = 1;
-
-Background Field = 2;
-
-Mesh.CharacteristicLengthFromPoints = 0;
-Mesh.CharacteristicLengthExtendFromBoundary = 0;

testcases/New_testcases/drop.py

@@ -41,7 +41,7 @@ def genInitialPosition(filename, r1, r2, rout, rhop1, rhop2) :
     p.write(filename)
 
 
-outputdir = "outputGoute3"
+outputdir = "outputGoutteStokesGoodNew"
 if not os.path.isdir(outputdir) :
     os.makedirs(outputdir)
 
@@ -59,14 +59,14 @@ g =  -9.81
 rho = 1200
 rhop1 = 2400
 rhop2 = 2400
-nu = 1e-4#/(10**0.5)
+nu = 1e-4#/(100**0.5)
 V = 0.5 # todo : estimate V base on limit velocity
 print('V',V)
-tEnd = 1000
+tEnd = 10
 
 #numerical parameters
 lcmin = 0.00005 # approx r*100 but should match the mesh size
-dt = 5e-3
+dt = 5e-4
 alpha = 2.5e-4
 epsilon = alpha*lcmin**2 /nu#2e-2*c*h*2#2e-2*c*h # ?? not sure ??1e-5
 autoEpsilon = False
@@ -82,7 +82,7 @@ p = scontact2.ParticleProblem(outputdir+"/part-00000")
 
 print("r = %g, m = %g\n" %  (p.r()[0], p.mass()[0]))
 print("RHOP = %g" % rhop1)
-outf = 40
+outf = 50
 outf1 = 100000
 
 strong_boundaries = [("Top",2,0.),("Top",1,0.),("Top",0,0.),("Bottom",1,0.),("Bottom",0,0.),("Left",0,0.),("Left",1,0.),("Right",0,0.),("Right",1,0.)]
@@ -98,9 +98,9 @@ ii = 0
 tic = time.clock()
 forces = g*p.mass()
 while t < tEnd : 
-    if (ii%100==0 and ii != 0) or ii==5:
-       fluid.adapt_mesh(0.01,100,1e-4,autoEpsilon)
-    forces = fluid.compute_node_force(dt,0*r1)
+    if (ii%100==0 and ii != 0) or ii==10:
+       fluid.adapt_mesh(0.01,100,5e-5,autoEpsilon)
+    forces = fluid.compute_node_force(dt,10*r1)
     vn = p.velocity() + forces * dt / p.mass()
     vmax = np.max(np.hypot(vn[:, 0], vn[:, 1]))
     nsub = max(1, int(np.ceil((vmax * dt * 4)/min(10*p.r()))))

testcases/New_testcases/unsortedBidisperse.py

@@ -8,31 +8,32 @@ import time
 import shutil
 import random
 
-def genInitialPosition(filename, r, rout, rhop) :
+def genInitialPosition(filename, r1, r2, rout, rhop1, rhop2) :
     p = scontact2.ParticleProblem()
     p.load_msh_boundaries("mesh.msh", ["Top", "Bottom","Left","Right"])
-    x = np.arange(rout, -rout, -1.11e-4)
-    y = np.arange(rout, -rout, -1.11e-4)
+    e = 1.4e-3/sqrt(2)
+    x = np.arange(rout, -rout, -1.4e-3)
+    y = np.arange(rout, -rout, -1.4e-3)
     x, y = np.meshgrid(x, y)
     R2 = x**2 + y**2
-    keep = R2 < (rout - r/2)**2
+    keep = R2 < (rout - r2/2)**2
     x = x[keep]
     y = y[keep]
     N1 = 0
     N2 = 0
     for i in range(x.shape[0]) :
         a = random.choice([1,2])
-        if a == 1 and N1 <= 128:
+        if a == 1 and N1 <= 17:
             N1 += 1
-            p.add_particle((x[i]+random.uniform(-1.11e-4/3,1.11e-4/3), y[i]+random.uniform(-1.11e-4/3,1.11e-4/3)), r/2, r**2 * np.pi * rhop/4);
-        elif a == 2 and N2 <= 128:
+            p.add_particle((x[i]+random.uniform(-1.4e-3/3,1.4e-3/3), y[i]+random.uniform(-1.4e-3/3,1.4e-3/3)), r1, r1**2 * np.pi * rhop1);
+        elif a == 2 and N2 <= 17:
             N2 += 1
-            p.add_particle((x[i]+random.uniform(-1.11e-4/3,1.11e-4/3), y[i]+random.uniform(-1.11e-4/3,1.11e-4/3)), r, r**2 * np.pi * rhop);
+            p.add_particle((x[i]+random.uniform(-1.4e-3/3,1.4e-3/3), y[i]+random.uniform(-1.4e-3/3,1.4e-3/3)), r2, r2**2 * np.pi * rhop2);
         else:
-            if N1 > 128 and a == 1:
-                p.add_particle((x[i]+random.uniform(-1.11e-4/3,1.11e-4/3), y[i]+random.uniform(-1.11e-4/3,1.11e-4/3)), r, r**2 * np.pi * rhop);
-            if N2 > 128 and a == 2:
-                p.add_particle((x[i]+random.uniform(-1.11e-4/3,1.11e-4/3), y[i]+random.uniform(-1.11e-4/3,1.11e-4/3)), r/2, r**2 * np.pi * rhop/4);
+            if N1 > 17 and a == 1:
+                p.add_particle((x[i]+random.uniform(-1.4e-3/3,1.4e-3/3), y[i]+random.uniform(-1.4e-3/3,1.4e-3/3)), r2, r2**2 * np.pi * rhop2);
+            if N2 > 17 and a == 2:
+                p.add_particle((x[i]+random.uniform(-1.4e-3/3,1.4e-3/3), y[i]+random.uniform(-1.4e-3/3,1.4e-3/3)), r1, r1**2 * np.pi * rhop1);
 
         
     print('N1',N1,'N2',N2,'N',N1+N2)
@@ -41,21 +42,24 @@ def genInitialPosition(filename, r, rout, rhop) :
 
 
 
-outputdir = "output"
+outputdir = "outputGoute"
 if not os.path.isdir(outputdir) :
     os.makedirs(outputdir)
 
 t = 0
 ii = 0
 
-r=0.36e-3/2
+r1=0.36e-3/2/2
+r2 = 0.78e-3/2/2
+R = 4.1e-3/2
 p = scontact2.ParticleProblem()
 #R = np.random.uniform(45e-06, 90e-06, len(x))
 
 #physical parameters
 g =  -9.81
 rho = 950
-rhop = 2440
+rhop1 = 2440
+rhop2 = 2550
 nu = 174e-6#/(10**0.5)
 V = 0.5 # todo : estimate V base on limit velocity
 print('V',V)
@@ -73,12 +77,12 @@ shutil.copy("mesh.msh", outputdir +"/mesh.msh")
 #scontact2Interface.MeshLoader(p, "funnel.msh", ("Funnel", "Top", "Bottom", "Lateral"))
 p.write(outputdir+"/part-00000")
 
-genInitialPosition(outputdir + "/part-00000", r, 1e-3, rhop)
+genInitialPosition(outputdir + "/part-00000", r1, r2, R, rhop1, rhop2)
 
 p = scontact2.ParticleProblem(outputdir+"/part-00000")
 
 print("r = %g, m = %g\n" %  (p.r()[0], p.mass()[0]))
-print("RHOP = %g" % rhop)
+print("RHOP = %g" % rhop1)
 outf = 1
 outf1 = 100000
 
@@ -96,7 +100,7 @@ forces = g*p.mass()
 while t < tEnd : 
    # if (ii%50==0 and ii != 0):
     #   fluid.adapt_mesh(0.01,50,4e-5,autoEpsilon)
-    forces = fluid.compute_node_force(dt)
+    forces = fluid.compute_node_force(dt,1e-3)
     vn = p.velocity() + forces * dt / p.mass()
     vmax = np.max(np.hypot(vn[:, 0], vn[:, 1]))
     nsub = max(1, int(np.ceil((vmax * dt * 4)/min(10*p.r()))))

testcases/New_testcases/vit.py

-import numpy as np
-v0 = []
-v1 = []
-v2 = []
-
-for k in range(0,1000):
-    with open("output/part-%05d" % k) as f :
-        for l in f :
-            w = l.split(" ")
-            if w[0] == "P" :
-                u = float(w[4])
-                print(u)
-                v0.append(u)
-
-v0 = np.array(v0)
-
-from matplotlib import pyplot as plt
-plt.plot(v0)
-plt.show()
-
-
-