mts=Mountains(dom,eps=TOPO_SMOOTH)
mts.setTopography(topography)
print("<%s> topography has been set up."%time.asctime())
#
# let the show begin:
#
t1 = time.time()
print("<%s> Start time step %s (t=%s)."%(time.asctime(),n,t))
while t<T_END:
if CREATE_TOPOGRAPHY: topography_old=topography
v_old, p_old, stress_old=v, p, stress
T_old=T
#======= solve for velovity ====================================================================
eta_N=exp(Ar*((1.+V_REF*(1-Function(dom).getX()[DIM-1]))/(T_OFFSET_REF+interpolate(T,Function(dom)))-1./T_OFFSET_REF))
print("viscosity range :", inf(eta_N), sup(eta_N))
flow.setPowerLaws([eta_N, eta_N ], [ 1., TAU_0], [1,N])
flow.setExternals(F=Ra*T*unitVector(DIM-1,DIM))
# if dt<=0 or not CREATE_TOPOGRAPHY:
if not CREATE_TOPOGRAPHY:
flow.update(dt, iter_max=100, verbose=False)
else:
topography_last=topography
Topo_norm, error_Topo=1,1
i=0
print("DDDDD : ====",dt)
while error_Topo > TOPO_TOL * Topo_norm:
flow.setStatus(t, v_old, p_old, stress_old)
flow.setExternals(f=-SURFACE_LOAD*(topography-dt*v)*unitVector(DIM-1,DIM)*top_boundary_mask, restoration_factor=SURFACE_LOAD*dt*top_boundary_mask)
flow.update(dt, iter_max=100, verbose=False)
v=flow.getVelocity()
mts.setTopography(topography_old)
#
# let the show begin:
#
t1 = time.time()
print("<%s> Start time step %s (t=%s)." % (time.asctime(), n, t))
while t < T_END:
if CREATE_TOPOGRAPHY: topography_old = topography
v_old, p_old, stress_old = v, p, stress
T_old = T
#======= solve for velovity ====================================================================
eta_N = exp(
Ar *
((1. + V_REF * (1 - Function(dom).getX()[DIM - 1])) /
(T_OFFSET_REF + interpolate(T, Function(dom))) - 1. / T_OFFSET_REF))
print("viscosity range :", inf(eta_N), sup(eta_N))
flow.setPowerLaws([eta_N, eta_N], [1., TAU_0], [1, N])
flow.setExternals(F=Ra * T * unitVector(DIM - 1, DIM))
# if dt<=0 or not CREATE_TOPOGRAPHY:
if not CREATE_TOPOGRAPHY:
flow.update(dt, iter_max=100, verbose=False)
else:
topography_last = topography
Topo_norm, error_Topo = 1, 1
i = 0
print("DDDDD : ====", dt)
while error_Topo > TOPO_TOL * Topo_norm:
flow.setStatus(t, v_old, p_old, stress_old)
flow.setExternals(f=-SURFACE_LOAD * (topography - dt * v) *
unitVector(DIM - 1, DIM) * top_boundary_mask,
restoration_factor=SURFACE_LOAD * dt *
top_boundary_mask)
