Turek #898
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gertjanvanzwieten
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examples/turek.py
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| return (self.theta + numpy.arange(self.endtime / self.timestep)) * self.timestep | ||
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| def value_and_rate(self, v1, subs): | ||
| 'Given value at and of time step, return theta value and time derivative.' |
examples/turek.py
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| # are those that have support on the solid domain. The remaining trial | ||
| # dofs will follow from minimizing a mesh energy functional, using the | ||
| # solid deformation as a boundary constraint so that the continuation | ||
| # problem does not feed back into the physics. To achive this within a |
examples/turek.py
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| # it to restrict the minimization problem to the remaining dofs via the | ||
| # replace_arguments operation. | ||
| mesh_energy = topo['fluid'].integral('C1_kk - 2 log(J1)' @ ns, degree=4) # Neo-Hookean with jacobian based stiffness | ||
| sqr = topo['solid'].integral(ns.d1 @ ns.d1, degree=4) / 'm2' |
examples/turek.py
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| mesh_energy = topo['fluid'].integral('C1_kk - 2 log(J1)' @ ns, degree=4) # Neo-Hookean with jacobian based stiffness | ||
| sqr = topo['solid'].integral(ns.d1 @ ns.d1, degree=4) / 'm2' | ||
| dfluid = numpy.isnan(System(sqr, trial='d').solve_constraints(droptol=1e-10)['d']) # true if dof is not supported by solid domain | ||
| res += function.replace_arguments(function.linearize(mesh_energy, 'd:dtest'), dict(dtest=function.arguments_for(res)['dtest']*dfluid)) |
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Can be merged to remove the replace_arguments and substitute dtest directly
examples/turek.py
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| # for the relative velocity at the remaining boundaries. | ||
| y = ns.xref[1] / domain.channel_height | ||
| uin = 6 * fluid.velocity * y * (1 - y) # Posseuille profile | ||
| sqr = topo['fluid'].boundary['wall,pivot,flap'].integral(ns.urel1 @ ns.urel1, degree=4) / 'm2/s2' |
gertjanvanzwieten
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This patch adds installation of gmsh and meshio to the test examples workflow to prepare for the addition of the turek example.
This patch modifies the base contaner to include the gmsh application, which is required for the upcoming turek benchmark.
This patch adds the turek example, which covers all benchmark problems as defined by Turek and Hron (reference in the code).
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