import itasca as it
from itasca import cfdarray as ca
from itasca.util import p2pLinkServer
import numpy as np
cfd_link = p2pLinkServer()
cfd_link.start()
nodes = cfd_link.read_data()
elements = cfd_link.read_data()
fluid_density = cfd_link.read_data()
fluid_viscosity = cfd_link.read_data()
it.command("call ../fluidized_bed_4/make_ini.p3dat")
ca.create_mesh(nodes, elements)
it.command("""
config cfd
element cfd ini density {}
element cfd ini visc {}
cfd porosity poly
cfd buoy on
cfd interval 0
element cfd history id 3 zvelocity id 1
plot add hist 2 vs 1
""".format(fluid_density, fluid_viscosity))
element_volume = ca.volume()
oldu = ca.velocity()
old_force = (ca.drag().T/element_volume).T/fluid_density
nodes = cfd_link.read_data()
elements = cfd_link.read_data()
fluid_density = cfd_link.read_data()
fluid_viscosity = cfd_link.read_data()
print fluid_density, fluid_viscosity
nmin, nmax = np.amin(nodes,axis=0), np.amax(nodes,axis=0)
diag = np.linalg.norm(nmin-nmax)
dmin, dmax = nmin -0.1*diag, nmax+0.1*diag
print dmin, dmax
it.command("""
new
domain extent {} {} {} {} {} {}
""".format(dmin[0], dmax[0],
dmin[1], dmax[1],
dmin[2], dmax[2]))
ca.create_mesh(nodes, elements)
it.command("""
config cfd
element cfd ini density {}
element cfd ini visc {}
cfd porosity poly
cfd buoy on
cfd relax 1
cfd update
call particles.p3dat
""".format(fluid_density, fluid_viscosity))
element_volume = ca.volume()
dt = 0.005