tadded shear simulation starter script - sphere - GPU-based 3D discrete element… | |
git clone git://src.adamsgaard.dk/sphere | |
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--- | |
commit e2e656773fc12f50a3883d86ea4b4f382f3dea34 | |
parent 2cbdf7ac7d7e6d9ea19ba3a6d70b8a4a155326c3 | |
Author: Anders Damsgaard <[email protected]> | |
Date: Thu, 21 Aug 2014 12:47:32 +0200 | |
added shear simulation starter script | |
Diffstat: | |
A python/shear-starter.py | 48 +++++++++++++++++++++++++++++… | |
1 file changed, 48 insertions(+), 0 deletions(-) | |
--- | |
diff --git a/python/shear-starter.py b/python/shear-starter.py | |
t@@ -0,0 +1,48 @@ | |
+#!/usr/bin/env python | |
+import sphere | |
+import numpy | |
+import sys | |
+ | |
+# launch with: | |
+# $ python shear-starter <DEVICE> <C_PHI> <C_GRAD_P> <SIGMA_0> | |
+ | |
+device = int(sys.argv[1]) | |
+c_phi = float(sys.argv[2]) | |
+c_grad_p = float(sys.argv[3]) | |
+sigma0 = float(sys.argv[4]) | |
+ | |
+sim = sphere.sim('diffusivity-sigma0=' + str(sigma0) + '-c_phi=' + \ | |
+ str(c_phi) + '-c_grad_p=' + str(c_grad_p), fluid=True) | |
+sim.readlast() | |
+ | |
+sim.sid = 'shear-sigma0=' + str(sigma0) + '-c_phi=' + str(c_phi) + \ | |
+ '-c_grad_p=' + str(c_grad_p) | |
+print(sim.sid) | |
+ | |
+ | |
+sim.checkerboardColors(nx=6,ny=6,nz=6) | |
+sim.cleanup() | |
+sim.adjustUpperWall() | |
+sim.zeroKinematics() | |
+ | |
+sim.shear() | |
+ | |
+sim.initFluid(mu = 17.87e-4, p = 1.0e5, hydrostatic = True) | |
+sim.setFluidBottomNoFlow() | |
+sim.setFluidTopFixedPressure() | |
+sim.setDEMstepsPerCFDstep(10) | |
+sim.setMaxIterations(2e5) | |
+sim.initTemporal(total = 20.0, file_dt = 0.01, epsilon=0.07) | |
+sim.c_phi[0] = c_phi | |
+sim.c_grad_p[0] = c_grad_p | |
+ | |
+# Fix lowermost particles | |
+dz = sim.L[2]/sim.num[2] | |
+I = numpy.nonzero(sim.x[:,2] < 1.5*dz) | |
+sim.fixvel[I] = 1 | |
+ | |
+sim.run(dry=True) | |
+sim.run(device=device) | |
+#sim.writeVTKall() | |
+sim.visualize('walls') | |
+sim.visualize('fluid-pressure') |