StaticUvlm

class sharpy.solvers.staticuvlm.StaticUvlm[source]

StaticUvlm solver class, inherited from BaseSolver

Aerodynamic solver that runs a UVLM routine to solve the steady or unsteady aerodynamic problem. The aerodynamic problem is posed in the form of an Aerogrid object.

Parameters:

data (PreSharpy) – object with problem data
custom_settings (dict) – custom settings that override the settings in the solver .txt file. None by default

settings

Name-value pair of settings employed by solver. See Notes for valid combinations

Type:: dict

settings_types

Acceptable data types for entries in settings

Type:: dict

settings_default

Default values for the available settings

Type:: dict

data

object containing the information of the problem

Type:: PreSharpy

velocity_generator

object containing the flow conditions information

Type:: object

The settings that this solver accepts are given by a dictionary, with the following key-value pairs:

Name	Type	Description	Default
`print_info`	`bool`	Print info to screen	`True`
`horseshoe`	`bool`	Horseshoe wake modelling for steady simulations.	`False`
`nonlifting_body_interactions`	`bool`	Consider nonlifting body interactions	`False`
`only_nonlifting`	`bool`	Consider only nonlifting bodies	`False`
`phantom_wing_test`	`bool`	Debug option	`False`
`num_cores`	`int`	Number of cores to use in the VLM lib	`0`
`n_rollup`	`int`	Number of rollup iterations for free wake. Use at least `n_rollup > 1.1*m_star`	`0`
`rollup_dt`	`float`	Controls when the AIC matrix is refreshed during the wake rollup	`0.1`
`rollup_aic_refresh`	`int`		`1`
`rollup_tolerance`	`float`	Convergence criterium for rollup wake	`0.0001`
`iterative_solver`	`bool`	Not in use	`False`
`iterative_tol`	`float`	Not in use	`0.0001`
`iterative_precond`	`bool`	Not in use	`False`
`velocity_field_generator`	`str`	Name of the velocity field generator to be used in the simulation	`SteadyVelocityField`
`velocity_field_input`	`dict`	Dictionary of settings for the velocity field generator	`{}`
`rho`	`float`	Air density	`1.225`
`cfl1`	`bool`	If it is `True`, it assumes that the discretisation complies with CFL=1	`True`
`vortex_radius`	`float`	Distance between points below which induction is not computed	`sharpy.utils.constants.vortex_radius_def`
`vortex_radius_wake_ind`	`float`	Distance between points below which induction is not computed in the wake convection	`sharpy.utils.constants.vortex_radius_def`
`rbm_vel_g`	`list(float)`	Rigid body velocity in G FoR	`[0.0, 0.0, 0.0, 0.0, 0.0, 0.0]`
`centre_rot_g`	`list(float)`	Centre of rotation in G FoR around which `rbm_vel_g` is applied	`[0.0, 0.0, 0.0]`
`map_forces_on_struct`	`bool`	Maps the forces on the structure at the end of the timestep. Only usefull if the solver is used outside StaticCoupled	`False`
`ignore_first_x_nodes_in_force_calculation`	`int`	Ignores the forces on the first user-specified number of nodes of all surfaces.	`0`

next_step()[source]: Updates de aerogrid based on the info of the step, and increases the self.ts counter