AeroTimeStepInfo¶

class sharpy.utils.datastructures.AeroTimeStepInfo(dimensions, dimensions_star)[source]¶

Aerodynamic Time step class.

Contains the relevant aerodynamic attributes for a single time step. All variables should be expressed in G FoR unless otherwise stated.

ct_dimensions¶: Pointer to dimensions to interface the C++ library uvlmlib`

ct_dimensions_star¶: Pointer to dimensions_star to interface the C++ library uvlmlib`

dimensions¶

Matrix defining the dimensions of the vortex grid on solid surfaces [num_surf x chordwise panels x spanwise panels]

Type: np.ndarray

dimensions_star¶

Matrix defining the dimensions of the vortex grid on wakes [num_surf x streamwise panels x spanwise panels]

Type: np.ndarray

n_surf¶

Number of aerodynamic surfaces on solid bodies. Each aerodynamic surface on solid bodies will have an associted wake.

Type: int

zeta¶

Location of solid grid vertices [n_surf][3 x (chordwise nodes + 1) x (spanwise nodes + 1)]

Type: list(np.ndarray

zeta_dot¶

Time derivative of zeta

Type: list(np.ndarray)

normals¶

Normal direction to panels at the panel center [n_surf][3 x chordwise nodes x spanwise nodes]

Type: list(np.ndarray)

forces¶

Forces not associated to time derivatives on grid vertices [n_surf][3 x (chordwise nodes + 1) x (spanwise nodes + 1)]

Type: list(np.ndarray)

dynamic_forces¶

Forces associated to time derivatives on grid vertices [n_surf][3 x (chordwise nodes + 1) x (spanwise nodes + 1)]

Type: list(np.ndarray)

zeta_star¶

Location of wake grid vertices [n_surf][3 x (streamwise nodes + 1) x (spanwise nodes + 1)]

Type: list(np.ndarray

u_ext¶

Background flow velocity on solid grid nodes [n_surf][3 x (chordwise nodes + 1) x (spanwise nodes + 1)]

Type: list(np.ndarray)

u_ext_star¶

Background flow velocity on wake grid nodes [n_surf][3 x (streamwise nodes + 1) x (spanwise nodes + 1)]

Type: list(np.ndarray)

gamma¶

Circulation associated to solid panels [n_surf][3 x chordwise nodes x spanwise nodes]

Type: list(np.ndarray)

gamma_star¶

Circulation associated to wake panels [n_surf][3 x streamwise nodes x spanwise nodes]

Type: list(np.ndarray)

gamma_dot¶

Time derivative of gamma

Type: list(np.ndarray)

inertial_steady_forces¶

Total aerodynamic steady forces in G FoR [n_surf x 6]

Type: list(np.ndarray)

body_steady_forces¶

Total aerodynamic steady forces in A FoR [n_surf x 6]

Type: list(np.ndarray)

inertial_unsteady_forces¶

Total aerodynamic unsteady forces in G FoR [n_surf x 6]

Type: list(np.ndarray)

body_unsteady_forces¶

Total aerodynamic unsteady forces in A FoR [n_surf x 6]

Type: list(np.ndarray)

postproc_cell¶

Variables associated to cells to be postprocessed

Type: dict

postproc_node¶

Variables associated to nodes to be postprocessed

Type: dict

in_global_AFoR¶

True if the variables are stored in the global A FoR. False if they are stored in the local A FoR of each body. Always True for single-body simulations. Currently not used.

Type: bool

control_surface_deflection¶

Deflection of the control surfaces, in rad and if fitted.

Type: np.ndarray

Parameters

dimensions (np.ndarray) – Matrix defining the dimensions of the vortex grid on solid surfaces [num_surf x chordwise panels x spanwise panels]
dimensions_star (np.ndarray) – Matrix defining the dimensions of the vortex grid on wakes [num_surf x streamwise panels x spanwise panels]

copy()[source]¶: Returns a copy of a deepcopy of a AeroTimeStepInfo

generate_ctypes_pointers()[source]¶: Generates the pointers to aerodynamic variables used to interface the C++ library uvlmlib

remove_ctypes_pointers()[source]¶: Removes the pointers to aerodynamic variables used to interface the C++ library uvlmlib