[case] Robin

Declares the boundary condition to be of Robin type.

In the Robin boundary condition the flux through a surface is given in the form

\[ \alpha \cdot [ u_0 - u(x) ], \]

where \(u(x)\) is the unknown value of the process variable, and \(\alpha\) and \(u_0\) are two fixed parameters.

Child parameters, attributes and cases

• [tag] alpha
• [tag] area_parameter
• [tag] u_0

Additional info

No additional info.

Used in the following test data files

• [→ ogs/ogs/master | → doc] Elliptic/line_1_SteadyStateDiffusion/line_1e1_robin_left_picard.prj
• [→ ogs/ogs/master | → doc] Elliptic/line_1_SteadyStateDiffusion/line_1e1_robin_right_picard.prj
• [→ ogs/ogs/master | → doc] Elliptic/square_1x1_SteadyStateDiffusion/square_1e2_axi.prj
• [→ ogs/ogs/master | → doc] Elliptic/square_1x1_SteadyStateDiffusion/square_1e4_axi.prj
• [→ ogs/ogs/master | → doc] Elliptic/square_1x1_SteadyStateDiffusion/wedge_1e2_axi_ang_0.02.prj
• [→ ogs/ogs/master | → doc] Elliptic/square_1x1_SteadyStateDiffusion/wedge_1e2_axi_ang_0.2.prj
• [→ ogs/ogs/master | → doc] Elliptic/square_1x1_SteadyStateDiffusion/wedge_1e4_axi_ang_0.02.prj
• [→ ogs/ogs/master | → doc] Parabolic/T/2D_Robin/square_1e4_robin.prj
• [→ ogs/ogs/master | → doc] Parabolic/T/2D_axially_symmetric/square_1e2_axi.prj
• [→ ogs/ogs/master | → doc] Parabolic/T/2D_axially_symmetric/wedge_1e2_axi_ang_0.02.prj