added G1 calibration data

demo_with_calibration_data.py

@@ -0,0 +1,74 @@
+# Copyright (c) 2023, Johannes Schreiber; Amr Balbaa; Carlo L. Bottasso
+# All rights reserved.
+#
+# This source code is licensed under the BSD-style license found in the
+# LICENSE file in the root directory of this source tree.
+
+import pathlib
+import pickle
+
+import matplotlib.pyplot as plt
+import numpy as np
+
+from double_gaussian_wake_model.wake_model import double_gaussian_deficit
+
+
+# This script loads the calibration data (scaled G1-turbine) and re-generates Fig. 3 of:
+# Schreiber, J., Balbaa, A., and Bottasso, C. L.: Brief communication: A double-Gaussian wake model,
+# Wind Energ. Sci., 5, 237–244, https://doi.org/10.5194/wes-5-237-2020, 2020.
+
+def get_points_for_line_plot(d0, downstream_D=6, resolution=0.01, limit_D=1.5):
+    z = np.array([0])
+    y = np.arange(-limit_D, limit_D, resolution) * d0
+    x = np.array([downstream_D]) * d0
+    return x, y, z
+
+
+# Loading of epsilon table
+if pathlib.Path('resources/fcn_epsilon.pickle').is_file():
+    with open('resources/fcn_epsilon.pickle', 'rb') as f:
+        fcn_epsilon = pickle.load(f)
+    recompute_epsilon = False
+else:
+    print("Epsilon look-up table could not be found. "
+          "Run 'generate_epsilon.py' to create it."
+          "Using the slower and 'recompute_epsilon' option for now.")
+    fcn_epsilon = None
+    recompute_epsilon = True
+
+# load calibration data
+with open('resources/G1_calibration_data.pickle', 'rb') as f:
+    data = pickle.load(f)
+
+# Parameters:
+kr, k, x0 = 0.534719991282902, 0.010379302460442, 1.103128529641920
+
+Ct = 0.75
+v = 1.0
+d0 = 1.1
+
+fig, axes = plt.subplots(1, len(data["distance_D"]), sharex=True, sharey=True, figsize=(12, 6))
+for i, downstream_D in enumerate(data["distance_D"]):
+    ax = axes[i]
+
+    ax.plot(data["CFD_x"][i], data["CFD_y"][i], label=f"CFD", linewidth=0, marker="x", color="r")
+    ax.plot(data["Exp_x"][i], data["Exp_y"][i], label=f"Exp.", linewidth=0, marker="o", color="k", mfc='none')
+
+    x, y, z = get_points_for_line_plot(d0, downstream_D)
+    deficit = double_gaussian_deficit(x, y, z, Ct, d0, kr, x0, k, recompute_epsilon, fcn_epsilon)
+    ax.plot(v * (1 - deficit), y / d0, label=f"DG", color="tab:blue")
+
+    ax.set_title(f"x={downstream_D}D")
+
+    if i == 0:
+        ax.legend(loc="lower right")
+
+    ax.set_ylabel('Y [D]')
+    ax.set_xlabel('V [-]')
+    ax.set_ylim([-1.5, 1.5])
+    ax.set_xlim([0.4, 1.1])
+    ax.grid()
+
+fig.tight_layout()
+
+plt.show()

setup.py

@@ -9,7 +9,7 @@
 
 setup(
     name='double_gaussian_wake_model',
-    version='0.1.0',
+    version='2.1',
     py_modules=['double_gaussian_wake_model'],
     url='https://github.com/gogannes/double_gaussian_wake_model',
     license='BSD-2-Clause',