Ejemplo n.º 1
0
    def testConstF_FreeBottom_smallK(self):
        k = 1.e-8
        mp = self.getScalarMask(include_bottom=False)
        mv = self.getVectorMask(include_bottom=True)
        u_ref, p_ref, f = self.setSolutionFixedBottom(p0=2500,
                                                      pb=4000.,
                                                      f0=10.,
                                                      fb=10.,
                                                      k=k)
        p = p_ref  # *mp
        u = u_ref * mv
        df = DarcyFlow(self.dom, verbose=VERBOSE, solver=self.SOLVER)
        df.setValue(g=f,
                    location_of_fixed_pressure=mp,
                    location_of_fixed_flux=mv,
                    permeability=Scalar(k, Function(self.dom)))

        v, p = df.solve(u, p)

        self.assertTrue(
            Lsup(v - u_ref) < self.TEST_TOL * Lsup(u_ref),
            "flux error too big.")
        self.assertTrue(
            Lsup(p - p_ref) < self.TEST_TOL * Lsup(p_ref),
            "pressure error too big.")
Ejemplo n.º 2
0
 def testVarioF_FreeBottom_largeK(self):
     k=1.e8
     mp=self.getScalarMask(include_bottom=False)
     mv=self.getVectorMask(include_bottom=True)
     u_ref,p_ref,f=self.setSolutionFixedBottom(p0=2500,pb=4000.,f0=10.,fb=30.,k=k)
     p=p_ref*mp
     u=u_ref*mv
     df=DarcyFlow(self.dom, verbose=VERBOSE, solver=self.SOLVER)
     df.setValue(g=f,
                   location_of_fixed_pressure=mp,
                   location_of_fixed_flux=mv,
                   permeability=Scalar(k,Function(self.dom)))
     v,p=df.solve(u,p)
     self.assertTrue(Lsup(v-u_ref)<self.TEST_TOL*Lsup(u_ref), "flux error too big.")
     self.assertTrue(Lsup(p-p_ref)<self.TEST_TOL*Lsup(p_ref), "pressure error too big.")
Ejemplo n.º 3
0
except ImportError:
    HAVE_FINLEY = False
from esys.weipa import saveVTK

if not HAVE_FINLEY:
    print("Finley module not available")
else:
    # generate domain:
    mydomain = Rectangle(l0=2.,l1=1.,n0=40, n1=20)
    # normal flux is given 
    x = mydomain.getX()

    # set location of fixed pressure and flux:
    p_BC=whereZero(x[1]-1.)*wherePositive(x[0]-1.)
    u_BC=(whereZero(x[0])+whereZero(x[0]-2.)) * [1.,0.] + \
         (whereZero(x[1]) + whereZero(x[1]-1.)*whereNonPositive(x[0]-1.0)) * [0., 1.]

    # define darcy flow solver:
    mypde = DarcyFlow(domain=mydomain)

    mypde.setValue(g=[0., 2],
                   location_of_fixed_pressure=p_BC,
                   location_of_fixed_flux=u_BC,
                   permeability=100.)

    u,p=mypde.solve(u0=x[1]*[0., -1.], p0=0)

    # write u to an external file
    saveVTK("u.vtu",flux=u, pressure=p)

Ejemplo n.º 4
0
except ImportError:
    HAVE_FINLEY = False
from esys.weipa import saveVTK

if not HAVE_FINLEY:
    print("Finley module not available")
else:
    # generate domain:
    mydomain = Rectangle(l0=2.,l1=1.,n0=40, n1=20)
    # normal flux is given 
    x = mydomain.getX()

    # set location of fixed pressure and flux:
    p_BC=whereZero(x[1]-1.)*wherePositive(x[0]-1.)
    u_BC=(whereZero(x[0])+whereZero(x[0]-2.)) * [1.,0.] + \
         (whereZero(x[1]) + whereZero(x[1]-1.)*whereNonPositive(x[0]-1.0)) * [0., 1.]

    # define darcy flow solver:
    mypde = DarcyFlow(domain=mydomain)

    mypde.setValue(g=[0., 2],
                   location_of_fixed_pressure=p_BC,
                   location_of_fixed_flux=u_BC,
                   permeability=100.)

    u,p=mypde.solve(u0=x[1]*[0., -1.], p0=0)

    # write u to an external file
    saveVTK("u.vtu",flux=u, pressure=p)