text: from __future__ import absolute_import
  from builtins import object
  from proteus import *
  from proteus.default_p import *
  try:
      from .cylinder import *
  except:
      from cylinder import *
  from proteus.mprans import RANS3PF
  name="rans3p"
  LevelModelType = RANS3PF.LevelModel
  if useOnlyVF:
      LS_model = None
  else:
      if sedimentDynamics:
          LS_model = 2
      else:
          LS_model = None
  if useRANS >= 1:
      Closure_0_model = 5; Closure_1_model=6
      if useOnlyVF:
          Closure_0_model=2; Closure_1_model=3
      if movingDomain:
          Closure_0_model += 1; Closure_1_model += 1
  else:
      Closure_0_model = None
      Closure_1_model = None
  
  coefficients = RANS3PF.Coefficients(epsFact=epsFact_viscosity,
                                      sigma=0.0,
                                      rho_0 = rho_0,
                                      nu_0 = nu_0,
                                      rho_1 = rho_1,
                                      nu_1 = nu_1,
                                      g=g,
                                      nd=nd,
                                      ME_model=V_model,
                                      PRESSURE_model=PRESSURE_model,
                                      SED_model=SED_model,
                                      VOF_model=VOF_model,
                                      VOS_model=VOS_model,
                                      LS_model=LS_model,
                                      Closure_0_model=Closure_0_model,
                                      Closure_1_model=Closure_1_model,
                                      epsFact_density=epsFact_density,
                                      stokes=False,
                                      useVF=useVF,
                                      useRBLES=useRBLES,
                                      useMetrics=useMetrics,
                                      eb_adjoint_sigma=1.0,
                                      eb_penalty_constant=weak_bc_penalty_constant,
                                      forceStrongDirichlet=ns_forceStrongDirichlet,
                                      turbulenceClosureModel=ns_closure,
                                      movingDomain=movingDomain,
                                      dragAlpha=dragAlpha,
                                      USE_SUPG=0.0,
                                      PSTAB=0.0,
                                      nParticles=1,
                                      particle_epsFact=1.5,
                                      particle_alpha=1000.0,
                                      particle_beta=1000.0,
                                      particle_penalty_constant=10.0,
                                      particle_sdfList=[particle_sdf],
                                      particle_velocityList=[particle_vel],
                                      use_ball_as_particle=1,
                                      ball_center=numpy.array([[0.2,0.2,0.0]]),
                                      ball_radius=numpy.array([0.05]),
                                      ball_velocity=numpy.array([[0.0,0.0,0.0]]),
                                      ball_angular_velocity=numpy.array([[0.0,0.0,0.0]]))
  
  
  def getDBC_u(x,flag):
      if flag in[ boundaryTags['left']]: 
          return lambda x,t: velRamp(t)*4.0*x[1]*(fl_H-x[1])/fl_H**2
      elif flag in [boundaryTags['front'],boundaryTags['back'],boundaryTags['top'],boundaryTags['bottom']]:
          return lambda x,t: 0.0
  
  def getDBC_v(x,flag):
      if flag in[boundaryTags['left'],boundaryTags['top'],boundaryTags['bottom']]:
          return lambda x,t: 0.0
      elif flag in [boundaryTags['front'],boundaryTags['back']]:
          return lambda x,t: 0.0
  
  dirichletConditions = {0:getDBC_u,
                         1:getDBC_v}
  
  def getAFBC_u(x,flag):
      if flag in [boundaryTags['left'],boundaryTags['front'],boundaryTags['back']]:
          return None
      else:
          return lambda x,t: 0.0
  
  def getAFBC_v(x,flag):
        if flag in [boundaryTags['left'],boundaryTags['front'],boundaryTags['back']]:
            return None
        else:
            return lambda x,t: 0.0
  
  def getDFBC_u(x,flag):
    if flag in [boundaryTags['left'],boundaryTags['front'],boundaryTags['back'],boundaryTags['top'],boundaryTags['bottom']]:
        return None
    else:
        return lambda x,t: 0.0
  
  def getDFBC_v(x,flag):
    if flag in [boundaryTags['left'],boundaryTags['front'],boundaryTags['back'],boundaryTags['top'],boundaryTags['bottom']]:
        return None
    else:
        return lambda x,t: 0.0
  
  advectiveFluxBoundaryConditions =  {0:getAFBC_u,
                                      1:getAFBC_v}
  
  diffusiveFluxBoundaryConditions = {0:{0:getDFBC_u},
                                     1:{1:getDFBC_v}}
  
  class AtRest(object):
      def __init__(self):
          pass
      def uOfXT(self,x,t):
          return 0.0
  
  initialConditions = {0:AtRest(),
                       1:AtRest()}
  