GeneralFlowEnvironment¶
- class acoular.environments.GeneralFlowEnvironment¶
Bases:
Environment
An acoustic environment with a generic flow field.
This class provides the facilities to calculate the travel time (distances) between grid point locations and microphone locations in a generic flow field with non-uniform velocities that depend on the location. The algorithm for the calculation uses a ray-tracing approach that bases on rays cast from every microphone position in multiple directions and traced backwards in time. The result is interpolated within a tetrahedal grid spanned between these rays.
- N = Int(200, desc='number of rays per Om')¶
Number of rays used per solid angle \(\Omega\), defaults to 200.
- Om = Float(pi, desc='maximum solid angle')¶
The maximum solid angle used in the algorithm, defaults to \(\pi\).
- get_interpolator(roi, x0)¶
Gets an LinearNDInterpolator object.
- Parameters:
- roiarray of floats of shape (3, N)
The locations of points in the region of interest in 3D cartesian co-ordinates. Used to estimate the maximum distance and ROI extension and center.
- x0array of floats of shape (3)
The location of the microphone in 3D cartesian co-ordinates.
- Returns:
- LinearNDInterpolator object