add elford et al paper setup

src/data/helmholtz/domain_properties/input_file_template.ini

@@ -4,14 +4,12 @@
 sample_type = frequency
 # linspace, uniform
 # (start, end, num, strategy)
-samples = (4000, 12000, 10, linspace)
+samples = (4000, 8000, 5, linspace)
 
 rho = 1.25
 c = 343.
 
 [DOMAIN]
-# resamples every time a new set of parameters is used (more optimized solving but more meshing)
-resample = False
 elements_per_wavelength = 5
 # space right without crystals, in terms of wavelengths. At least .5 is required for band gaps.
 right_space = 0.55
@@ -25,8 +23,8 @@ excitation_index = 9000
 depth = 3.
 round_trip = 1e-6
 on_right = True
-on_top = True
-on_bottom = True
+on_top = False
+on_bottom = False
 cell_index = 20000
 
 [CRYSTAL]
@@ -36,13 +34,10 @@ type = Cylindrical
 grid_size = 22e-3
 n_x = 10
 n_y = 10
-# when the crystal is not cut from the domain the wave number is modified accordingly
-cut = False
-ref_index = -1
 cell_index = 3000
 [CRYSTAL-NONE]
 [CRYSTAL-CYLINDRICAL]
-radius = (6.5e-3, -1, 1, linspace)
+radius = (6.5e-3, -7.5e-3, 1, linspace)
 [CRYSTAL-C-SHAPED]
 outer_radius = (0.6, 0.75, 3, linspace)
 # in relation to outer radius (1. is exactly outer radius)