Triangular facet

operator ()

Synopsis:

Called by the unary force container to compute the acceleration of particle i due to surface forces exerted on it because of the triangular facet

Arguments:

size_t i

index of the particle that is being accelerated

std::vector<fielv_value_t> const & x

const reference to the position buffer

std::vector<fielv_value_t> const & v

const reference to the velocity buffer

std::vector<fielv_value_t> const & theta

const reference to the orientation buffer

std::vector<fielv_value_t> const & omega

const reference to the angular velocity buffer

real_t t

simulation time

Return value:

std::pair<field_value_t, field_value_t>

translational acceleration and angular acceleration of particle i due to surface forces exerted on it by the triangular facet

get_unit_normal()

Synopsis:

Returns the normal unit vector of the plane in which the triangular facet lies

Arguments:

void

no arguments

Return value:

field_value_t const &

const reference to the normal unit vector of the plane in which the triangular facet lies

get_vertices()

Synopsis:

Returns the tuple with current positions of the vertices of the triangular facet

Arguments:

void

no arguments

Return value:

std::tuple<field_value_t, field_value_t, field_value_t> const &

const reference to the tuple containing the positions of the vertices of the triangular facet

update_positions()

Synopsis:

Needs to be called at every integration time step to update the positions of the vertices based on the facet velocity, v_facet, unless the facet is static

Arguments:

real_t dt

time step by which the vertex positions need to be advanced

void

no return value