Distributed normal force on the outward normal at the edge of a geometry. This distributed term is translated into equivalent nodal force terms on the edges of elements. In 1D this option is not available. In 2D this option is available for all elements. In 3D this option is only available for linear elements. Also the record force_element_edge_geometry_normal should be specified, and optionally the record force_element_edge_time_normal can be specified.