pymead.analysis.calc_aero_data.MSETSettings#

class MSETSettings(multi_airfoil_grid: Dict[str, AirfoilMSETMeshingParameters], grid_bounds: List[float] | None = None, airfoil_side_points: int = 180, exp_side_points: float = 0.9, inlet_pts_left_stream: int = 41, outlet_pts_right_stream: int = 41, num_streams_top: int = 17, num_streams_bot: int = 23, max_streams_between: int = 15, elliptic_param: float = 1.3, stag_pt_aspect_ratio: float = 2.5, x_spacing_param: float = 0.85, alf0_stream_gen: float = 0.0, timeout: float = 10.0, use_downsampling: bool = False, downsampling_max_pts: int = 200, downsampling_curve_exp: float = 2.0)[source]#

Bases: object

__init__(multi_airfoil_grid: Dict[str, AirfoilMSETMeshingParameters], grid_bounds: List[float] | None = None, airfoil_side_points: int = 180, exp_side_points: float = 0.9, inlet_pts_left_stream: int = 41, outlet_pts_right_stream: int = 41, num_streams_top: int = 17, num_streams_bot: int = 23, max_streams_between: int = 15, elliptic_param: float = 1.3, stag_pt_aspect_ratio: float = 2.5, x_spacing_param: float = 0.85, alf0_stream_gen: float = 0.0, timeout: float = 10.0, use_downsampling: bool = False, downsampling_max_pts: int = 200, downsampling_curve_exp: float = 2.0)[source]#

Defines a set of reasonable default values for MSET, the grid meshing tool in the MSES suite.

Parameters:

  • multi_airfoil_grid (Dict[str, AirfoilMSETMeshingParameters]) – Set of airfoil meshing parameters for each airfoil in the multi-element airfoil. The keys represent the airfoil names as they appear in the MEA object, and the values must be instances of the AirfoilMSETMeshingParameters class.

  • grid_bounds (List[float] or None) – Grid bounds to use for the airfoil system mesh. The values of the list are the \(x\)-location of the left side of the grid, the \(x\)-location of the right side of the grid, the \(y\)-location of the bottom side of the grid, and the \(y\)-location of the top side of the grid, in that order. These values correspond to a pseudo-rectangular far-field boundary (the sides follow the streamwise or stream-normal direction and may not be exactly linear). The sides will also be rotated relative to the origin if any angle of attack other than 0.0 is specified. If None is specified, a default value of [-5.0, 5.0, -5.0, 5.0] will be used. Default: None

  • airfoil_side_points (int) – Number of points along each airfoil to allocate. Default: 180

  • exp_side_points (float) – Exponent to determine the initial distribution of the side points. Default: 0.9

  • inlet_pts_left_stream (int) – Number of grid points to allocate along the streamlines (left of the airfoil system). Default: 41

  • outlet_pts_right_stream (int) – Number of grid points to allocate along the streamlines (right of the airfoil system). Default: 41

  • num_streams_top (int) – Number of streamlines to allocate above the airfoil system. Default: 17

  • num_streams_bot (int) – Number of streamlines to allocate below the airfoil system. Default: 23

  • max_streams_between (int) – Maximum number of streamlines to between each set of airfoils. Default: 15

  • elliptic_param (float) – Elliptic parameter. Default: 1.3

  • stag_pt_aspect_ratio (float) – Aspect ratio of cells at the stagnation points. Default: 2.5

  • x_spacing_param (float) – \(x\)-spacing parameter. Default: 0.85

  • alf0_stream_gen (float) – Angle of attack (in degrees) used to generate the initial set of streamlines using an incompressible flow solution. Default: 0.0

  • timeout (float) – Maximum time MSET is allowed to run before premature termination. Useful to prevent a hanging process in the case of a bad set of input parameters.

  • use_downsampling (bool) – Whether to downsample the evaluated points along the airfoil. Useful when the number of points exceeds the hard-coded limits of XFOIL or MSES. Default: False

  • downsampling_max_pts (int) – Total number of points to allow along the airfoil. Ignored if use_downsampling==False. Default: 200

  • downsampling_curve_exp (float) – Curvature exponent to influence the distribution of points on the airfoil. Values close to zero cause the curvature of the airfoil to exert a large influence over the distribution, while values close to infinity create a nearly uniform spacing. Ignored if use_downsampling==False. Default: 2.0

Methods

get_dict_rep()

Gets a Python dictionary description of the MSET meshing parameters.
get_dict_rep() → dict[source]#

Gets a Python dictionary description of the MSET meshing parameters. Used in run_mset.

Returns:

MSET meshing parameters

Return type:

dict