from snake.openfoam.simulation import OpenFOAMSimulation
from snake.cuibm.simulation import CuIBMSimulation
simulation = OpenFOAMSimulation(description='IcoFOAM')
simulation.read_forces(display_coefficients=True)
simulation.get_mean_forces(limits=[32.0, 64.0])
simulation.get_strouhal(limits=[32.0, 64.0], order=200)
krishnan = CuIBMSimulation(description='Krishnan et al. (2014)')
krishnan.read_forces(file_path='{}/resources/flyingSnake2d_cuibm_anush/'
'flyingSnake2dRe2000AoA35/forces'
''.format(os.environ['SNAKE']))
krishnan.get_mean_forces(limits=[32.0, 64.0])
krishnan.get_strouhal(limits=[32.0, 64.0], order=200)
simulation.plot_forces(display_coefficients=True,
display_extrema=True,
order=200,
limits=(0.0, 80.0, 0.0, 3.0),
other_simulations=krishnan,
other_coefficients=2.0,
save_name='forceCoefficientsCompareKrishnanEtAl2014')
dataframe = simulation.create_dataframe_forces(display_strouhal=True,
display_coefficients=True)
dataframe2 = krishnan.create_dataframe_forces(display_strouhal=True,
display_coefficients=True,
coefficient=2.0)
dataframe = dataframe.append(dataframe2)
print(dataframe)
simulation = OpenFOAMSimulation(description='IcoFOAM')
simulation.read_forces(display_coefficients=True)
simulation.get_mean_forces(limits=[32.0, 64.0])
simulation.get_strouhal(limits=[32.0, 64.0], order=200)
krishnan = CuIBMSimulation(description='Krishnan et al. (2014)')
krishnan.read_forces(file_path='{}/resources/flyingSnake2d_cuibm_anush/'
'flyingSnake2dRe2000AoA35/forces'
''.format(os.environ['SNAKE']))
krishnan.get_mean_forces(limits=[32.0, 64.0])
krishnan.get_strouhal(limits=[32.0, 64.0], order=200)
simulation.plot_forces(indices=[1],
display_coefficients=True,
display_extrema=True, order=200,
limits=(0.0, 80.0, 0.0, 3.0),
other_simulations=krishnan,
other_coefficients=2.0,
save_name='liftCoefficientCompareKrishnanEtAl2014')
dataframe = simulation.create_dataframe_forces(indices=[1],
display_strouhal=True,
display_coefficients=True)
dataframe2 = krishnan.create_dataframe_forces(indices=[1],
display_strouhal=True,
display_coefficients=True,
coefficient=2.0)
dataframe = dataframe.append(dataframe2)
print(dataframe)
directory=directory)
simulation.read_forces(display_coefficients=True)
simulation.get_mean_forces(limits=[32.0, 64.0])
# Reads the instantaneous forces from the simulation that uses less demanding
# exit criterion for the iterative solvers (tol=1.0E-06).
# The force coefficients are averaged between 32 and 64 time-units.
directory = os.path.join(os.path.dirname(__file__),
'tol1.0E-06')
other = OpenFOAMSimulation(description='tol=1.0E-06',
directory=directory)
other.read_forces(display_coefficients=True)
other.get_mean_forces(limits=[32.0, 64.0])
# Displays the time-averaged force coefficients into a table.
dataframe = simulation.create_dataframe_forces(display_coefficients=True)
dataframe2 = other.create_dataframe_forces(display_coefficients=True)
dataframe = dataframe.append(dataframe2)
print(dataframe)
# Plots the instantaneous force coefficients
fig, ax = pyplot.subplots(figsize=(6, 4))
ax.grid(True, zorder=0)
ax.set_xlabel('non-dimensional time-unit')
ax.set_ylabel('force coefficients')
ax.plot(simulation.forces[0].times, simulation.forces[0].values,
label='$C_d$ ($tol=10^{-8}$)',
color='#377eb8',
linestyle='-',
linewidth=2,
zorder=10)
