fix datatype

Author: gituser789

examples/heat_sink_fan_calculation.py

@@ -1,6 +1,7 @@
-"""Example for a R_th calculation for a given heat sink geometry and a single fan."""
+"""Example for an R_th calculation for a given heat sink geometry and a single fan."""
 # import 3rd party libraries
 import numpy as np
+from matplotlib import pyplot as plt
 
 # import own libraries
 import hct
@@ -14,8 +15,25 @@
 
 fan_name = 'orion_od4010m.csv'
 
-volume_flow, pressure = hct.calc_volume_flow(fan_name, geometry, plot=True)
+hct.global_plot_settings_font_latex()
+hct.global_plot_settings_font_size(12)
+figure_size = (80, 60)
 
+volume_flow, pressure = hct.calc_volume_flow(fan_name, geometry, plot=True, figure_size=figure_size)
 r_th_sa = hct.calc_final_r_th_s_a(geometry, constants, t_ambient, volume_flow)
-
 print(f"{r_th_sa=}")
+
+
+r_th_sa_sweep_list = np.array([])
+volume_flow_sweep_list = np.linspace(0.002, 0.035)
+for volume_flow_sweep in volume_flow_sweep_list:
+    r_th_sa_sweep = hct.calc_final_r_th_s_a(geometry, constants, t_ambient, volume_flow_sweep)
+    r_th_sa_sweep_list = np.append(r_th_sa_sweep_list, r_th_sa_sweep)
+
+plt.figure(figsize=[x / 25.4 for x in figure_size] if figure_size is not None else None, dpi=80)
+plt.plot(volume_flow_sweep_list, r_th_sa_sweep_list, color=hct.colors()["blue"])
+plt.xlabel("Volume flow / (m³/s)")
+plt.ylabel(r"$R_\mathrm{th}$ / (K/W)")
+plt.grid()
+plt.tight_layout()
+plt.show()

examples/heat_sink_optimization.py

@@ -11,7 +11,7 @@
 
 config = hct.OptimizationParameters(
 
-    heat_sink_study_name="trial1_area_1",
+    heat_sink_study_name="trial1_directions",
     heat_sink_optimization_directory=os.path.abspath("example_results"),
 
     height_c_list=[0.02, 0.08],
@@ -22,10 +22,11 @@
     thickness_fin_t_list=[1e-3, 5e-3],
     fan_list=fan_list,
     t_ambient=40,
-    area_min=0.02 * 0.1
+    area_min=0.02 * 0.1,
+    number_directions=3
 )
 
-hct.Optimization.start_proceed_study(config=config, number_trials=10000)
+# hct.Optimization.start_proceed_study(config=config, number_trials=10000)
 
 hct.global_plot_settings_font_latex()
 

hct/thermal_dataclasses.py

@@ -1,7 +1,7 @@
 """Dataclass definitions."""
 # Python libraries
 from dataclasses import dataclass
-from typing import List
+from typing import List, Optional
 
 
 @dataclass
@@ -66,7 +66,7 @@ class OptimizationParameters:
 
     # constraints
     number_directions: int
-    area_min: float
+    area_min: Optional[float]
 
 
 @dataclass