const Real _gravity_value
Acceleration due to gravity.
virtual Real computeQpResidual() override
const bool _has_mass
Booleans for validity of params.
static InputParameters validParams()
const Real _alpha
HHT time integration parameter.
const Function & _function
Time and space dependent factor multiplying acceleration due to gravity.
NodalGravity(const InputParameters ¶meters)
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real
const Real _mass
Mass associated with the node.
const bool _has_nodal_mass_file
std::map< dof_id_type, Real > _node_id_to_mass
Map between boundary nodes and nodal mass.
const InputParameters & parameters() const
Calculates the gravitational force proportional to nodal mass.